Fluid Power Journal August 2020

SE LF-CLE ANING FILTE R | PHOTO CONTEST WINNE RS RE VE ALE D P.31

AUGUST 2020

www.fluidpowerjournal.com

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How to Control

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IN THIS ISSUE

31

Photo by Mass Communication Specialist 2nd Class Ryan Seelbach/Released)

18

AUGUST 2020

VOLUME 27 • ISSUE 7

Features 6 The STAMPED Method

for Selecting Tubing and Fittings

for a Metal Tube Assembly 8 IFPS 2020 Hall of Fame 10 Self-Cleaning Filter

Eliminates Downtime for

Sausage Co-Packer 18 Servo Valves

Key to Aircraft Carrier Application* 20 How Fluid Power Helps

Control Invisible Contaminants

34

26 Hydraulic Sealing Solutions

Help Jetliners Fly

Higher, Faster, Longer 31 Photo Contest Winners 34 Valves in Space

Image courtesy of Thomas Cooper, Lightbox Images

35 Impact of Doering's NASA

Project Long Lasting

Departments

Publisher’s Note: The information provided in this publication is for informational purposes only. While all efforts have been taken to ensure the technical accuracy of the material enclosed, Fluid Power Journal is not responsible for the availability, accuracy, currency, or reliability of any information, statement, opinion, or advice contained in a third party’s material. Fluid Power Journal will not be liable for any loss or damage caused by reliance on information obtained in this publication.

4

Notable Words

7

Figure It Out

12

Web Marketplace

13

IFPS Update

23

Product Review

24

Component Showcase

28

All About Vacuum

36

Product Spotlight

39

Classifieds

*NAVAIR Public Release 2020-398. Distribution Statement A – “Approved for public release; distribution is unlimited.”

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PUBLISHER Innovative Designs & Publishing, Inc. 3245 Freemansburg Avenue, Palmer, PA 18045-7118 Tel: 800-730-5904 or 610-923-0380 Fax: 610-923-0390 • Email: Art@FluidPowerJournal.com www.FluidPowerJournal.com

Responsibility and Restraint Can Land You a Good Job

By Randall D. Smith, Supply Chain Liaison, Marine Systems, Northrup Grumman Corp.

»

AT THE BEGINNING 2020, I thought that cannabis products and legalized marijuana would have been the big news. States were asking, if it’s legal in some states, should it be legal in ours? How can we generate a sin tax to fund our x, y, or z programs? Then COVID-19 struck. Although attention shifted, I still wondered about legal marijuana. What is the socially responsible thing to do? If someone smokes it where it is legal but lives where it isn’t, is that okay? The libertarian in me says, yes, as long as you don’t bother me. But it is still illegal under federal law.

How many of you signed a document when you began your career saying you wouldn’t consume illegal drugs? The federal government declares that if you work for the government or on a government contract, you cannot partake. Why is this important?

As a former U.S. Navy submariner, a value that drives me to deliver quality products is what might be called blind faith. As a member of the military, I went to sea with the idea that the people who built and maintain the vessel did so according to the highest standards and with great attention to detail. This adherence comes from the clear minds of those who designed and built the sub. I had a blind faith that the ship I boarded would get me home safely if it was operated and maintained to its design specifications. I exhibited blind faith in the craftsmanship of the welding, machining, and assembly of the overall system. For me it is personal. For anyone who has family or friends in the military, it should be personal also.

This personal stake is part of what drove me to continue working in the defense industry after my time in the Navy – as well as cursing the engineers who designed some of this stuff with no concept of maintenance. I was motivated to fix some things.

In my current position with a large defense company, I travel the country visiting our suppliers. These suppliers and their sub-tiers provide custom and commercial off-the-shelf components that will eventually go into aircraft carriers and submarines.

All of our contracts stipulate that the suppliers and their sub-tiers must abide by a set of rules. Buried in those rules is one that says that if you’re working on defense projects, you are subject to federal law about illegal drugs.

During the COVID-19 quarantines, the defense industry was designated as an essential business, and everyone kept working their well-paying jobs with benefits and plenty of overtime. Sure, we have responsibilities such as social distancing, wearing protective gear, and reporting contact with someone who may be infected.

And those who can are still working from home. But the industry keeps working.

(Continued on page 5)

4

AUGUST 2020

Founders: Paul and Lisa Prass

Associate Publisher: Bob McKinney Editor: Michael Degan

Technical Editor: Dan Helgerson, CFPAI/AJPP, CFPS, CFPECS, CFPSD, CFPMT, CFPCC - CFPSOS LLC

Art Director: Quynh Fisher Eastern Region Acct Executive: Norma Abrunzo Director of Creative Services: Erica Montes Accounting: Donna Bachman, Sarah Varano

Circulation Manager: Andrea Karges INTERNATIONAL FLUID POWER SOCIETY 1930 East Marlton Pike, Suite A-2, Cherry Hill, NJ 08003-2141 Tel: 856-489-8983 • Fax: 856-424-9248 Email: AskUs@ifps.org • Web: www.ifps.org 2020 BOARD OF DIRECTORS

President: Jeff Kenney, CFPMHM, CFPIHM, CFPMHT - Dover Hydraulics South

Immediate Past President: Timothy White, CFPAI/AJPP, CFPS, CFPECS, CFPMIH, CFPMMH, CFPMIP, CFPMT, CFPMM - The Boeing Company

First Vice President: Rocky Phoenix, CFPMMH - Open Loop Energy, Inc.

Treasurer: Jeff Hodges, CFPAI/AJPP, CFPMHM - Altec Industries, Inc. Vice President Certification: Denis Poirier, Jr., CFPAI/AJPP, CFPHS, CFPIHM, CFPCC - Eaton Corporation

Vice President Marketing: Scott Sardina, PE, CFPAI, CFPHS Waterclock Engineering

Vice President Education: Kenneth Dulinski, CFPAI/AJPP, CFPECS, CFPHS, CFPMIH, CFMMH, CFPMT - Macomb Community College

Vice President Membership: John Bibaeff, PE, CFPAI, CFPE,

CFPS - CAD Control Systems DIRECTORS-AT-LARGE Chauntelle Baughman, CFPHS - OneHydraulics, Inc. Stephen Blazer, CFPE, CFPS, CFPMHM, CFPIHT, CFPMHT Altec Industries, Inc. Randy Bobbitt, CFPAI, CFPHS - Danfoss Power Solutions Cary Boozer, PE, CFPE - Motion Industries, Inc. Lisa DeBenedetto, CFPS - Argo-Hytos Daniel Fernandes, CFPECS, CFPS - Sun Hydraulics Brandon Gustafson, PE, CFPE, CFPS, CFPIHT, CFPMHM - Graco, Inc. Garrett Hoisington, CFPAI/AJPP, CFPS, CFPMHM Open Loop Energy Brian Kenoyer, CFPHS - Five Landis Corp.

James O’Halek, CFPAI/AJPP, CFPMIP, CMPMM The Boeing Company Mohaned Shahin, CFPS - Parker Hannifin Randy Smith, CFPHS - Northrop Grumman Corp.

HONORARY DIRECTORS-AT-LARGE AND EX-OFFICIO Ex-Officio: Donna Pollander, ACA, Executive Director Elizabeth Rehfus, CFPE, CFPS Paul Prass, Fluid Power Journal Robert Sheaf, CFPAI/AJPP, CFC Industrial Training

IFPS STAFF Executive Director: Donna Pollander, ACA Communications Director: Adele Kayser Technical Director: Thomas Blansett, CFPS, CFPAI Assistant Director: Stephanie Coleman Certification Coordinator: Kyle Pollander Bookkeeper: Diane McMahon Administrative Assistant: Beth Borodziuk

Fluid Power Journal (ISSN# 1073-7898) is the official publication of the International Fluid Power Society published monthly with four supplemental issues, including a Systems Integrator Directory, Off-Highway Suppliers Directory, Tech Directory, and Manufacturers Directory, by Innovative Designs & Publishing, Inc., 3245 Freemansburg Avenue, Palmer, PA 18045-7118.

All Rights Reserved. Reproduction in whole or in part of any material in this publication is acceptable with credit. Publishers assume no liability for any information published. We reserve the right to accept or reject all advertising material and will not guarantee the return or safety of unsolicited art, photographs or manuscripts.

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(Continued from page 4) The big defense contractors need products that many small and medium-size companies produce. From fittings and actuators to cables and weldments, the defense industry contracts with thousands of companies, including giant ones on multiacre campuses and tiny mom-and-pop machine shops that crank out nuclear-grade valves by the thousands. What do they have in common? They all play by the same rules. And most of those companies are hiring.

As I visit these companies around the country, I frequently hear the same thing, “We can’t find workers who have the desire to learn.” These companies aren’t asking for experience; if you have it, great! But they also need people who will show up every day, ready to go to work.

When companies do find those kinds of people, there is still a struggle to find candidates who can pass a urinalysis test. I recently visited a fabricator of large weldments (the size of a small house). They had a few welders retire and needed to backfill the positions.

While they had a number of candidates who could lay a fine bead of a weld, they struggled finding people who could pass the urinalysis component of the hiring process. I hear similar things across the fluid power industry.

Companies can’t find dependable people who are socially responsible.

There are plenty of good-paying jobs out there for people who can practice a little restraint. In this time of quarantine and record joblessness, there are jobs to be had with good pay, great benefits, and the rewards of patriotism that comes from building quality products for our country’s defense. All it requires is a little ambition, restraint, and social responsibility. Maybe for those of us more seasoned in the workforce, a little mentoring of young people would go a long way. 

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AUGUST 2020

5

The The Theacronym acronym acronym“STAMPED”, “STAMPED”, “STAMPED”,as as asused used usedfor for forhose hose hoseassemblies, assemblies, assemblies,is isisequally equally equallyas as asimportant important importantto to touse use usewhen when whendeveloping developing developing tube tube tube assemblies. assemblies. assemblies. The The Thesame same samefactors factors factorsapply; apply; apply;only only onlythe the thefabrication fabrication fabricationand and andinstallation installation installationwill will willvary. vary. vary. Flow Flow Flowand and andpressure pressure pressurecharts charts charts can can canbe be befound found foundfrom from fromthe the thesame same sametechnical technical technicalreferences. references. references. Typical Typical Typicaltubing tubing tubingcharts charts chartsare are areincluded included includedin ininTask Task Task7.

7.

7.

The

S T A MPE D

Size Size Sizeof ofoftthe he t hettubing ubing t ubingis isisbased based basedon: on: on: 1.

1.

1. Flow Flow Flow(GPM) (GPM) (GPM) 2.

2.

2. Flow Flow Flowvelocity velocity velocity(ft/sec) (ft/sec) (ft/sec) 3.

3.3. Pressure Pressure Pressure 4.

4.

4. External External Externalcorrosion corrosion corrosion All All Allhydraulic hydraulic hydraulictubing tubing tubingis isismeasured measured measuredon on onthe the theoutside outside outsidediameter diameter diameter(O.D.).

(O.D.).

(O.D.).The The Theflow flow flowvelocity velocity velocityis isisbased based basedon on onthe the thegalgalgallons lons lons per per per minute minute minute (GPM) (GPM) (GPM) flowing flowing flowing through through through the the the tube. tube. tube. This This This can can can be be be calculated calculated calculated or or or found found found on on on charts charts charts and and and in ininttechnical echnical t echnicalreferences. references. references.

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Pressure Pressure Pressureis isisincluded included includedin ininsizing sizing sizinghere here hereas as aswell well wellas as asunder under undertthe he t he““P” “P”P”lat lat later ereron on onin inin““STAMPED”.

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Method for Selecting Tubing and Fittings for a Metal Tube Assembly

Tem Tem Temperat perat perature ure urecan can canbe be beaaafactor factor factorwith with withtubing tubing tubingand and andfittings, fittings, fittings,but but butusually usually usuallynot not notuntil until untiltemperatures temperatures temperaturesare are areextreme extreme extreme(350° (350° (350°

A S S EMB LY CO MPO N EN T S EL EC T IF).

O FFFto to to-45° -45° -45° F).

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To fulfill where the requirements of the tube application, additional questions

9.0. Use the “STAMPED” method in selecting proper tubing and plicate plicate plicateof ofofthe the theoriginal original originalwill will willbe berequired required requiredprovided provided providedthe theoriginal original originalassembly assembly assemblygave gave gaveacceptable acceptable acceptableservice service servicelife. life. life. To To Tofulfill fulfill fulfill important to use when developing tube assemblies. The same factors may need to bebe answered such the as: the the therequirements requirements requirementsof ofofthe the theapplication, application, application,additional additional additionalquestions questions questionsmay may mayneed need needto to tobe be beanswered answered answeredsuch such suchas: as: as: gs for a metal tube assembly. apply; only the fabrication and installation will vary. Flow and pressure charts can be found from the same technical references.

Where Where Wherewill will willassem assem assembly bly blybe be beused used used

tcome 9.1. Design and specify tube assembly components.

Working Working Workingand and andsurge surge surgepressures pressures pressures

S

Suct Suct Suction ion ionapplicat applicat application? ion? ion?

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Typical tubing charts are included in Task 7.

Pressure 4. External corrosion

Fluid/ambient Fluid/ambient Fluid/ambienttemp. temp. temp.

Fluid Fluid Fluidcompatibility compatibility compatibility Environm Environm Environment ent ental alal Minim Minim Minimum um umbend bend bendradius radius radius Rout Rout Routing ing ing

Gov. Gov. Gov.& &&industry industry industrystandards standards standards Mechanical Mechanical Mechanicalloads loads loads Excessive Excessive Excessiveabrasion abrasion abrasion Expect Expect Expected ed edservice service servicelife life life Ext Ext External ernal ernalcorrosion corrosion corrosion

M

M MMat ataterial: erial: erial: Tube Tube Tubeselection selection selectionand and andfittings fittings fittingsmust must mustassure assure assurecompatibility compatibility compatibilitywith with withthe the thefluid fluid fluidto to tobe be becirculated circulated circulatedin ininthe the thesystem, system, system, aterial: Tube selection and fittings must be as as aswell well wellas as astthe he t heenvironm environm environment ent ental alalcondit condit conditions. ions. ions.

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Note: Many swivel elbow fittings contain O-rings that must be compatible with the fluid and environmental conditions.

P

the tube wall at bends must also be considered.

is included in sizing here as well as under t he “ P” lat er on in “ STAMPED”. Flow losses (pressure Pressure is included in sizing here as well as under the “P” later on Burst pressures are reference pressures intended for n affect sizing the tubing. Length of line and configuration (elbows and number of fittings) can add in STAMPED. Flow losses (pressure drop) can affect sizing the tubing. destructive testing purposes and design safety factors only. Typically, for ure losses dict at ing a larger t ube I .D. Low t em perat ures can also affect viscosit y which in t urn will of line and configuration (elbows andreduced numberwall of fittings) can dynamic essure drop.Length Wall thickness at bent tube sections will have size. This will require thehydraulic applications, the minimum burst pressure rating is add pressure dictating larger tuberadius I.D. Low temperatures fourworktimes that of the maximum working pressure rating. r to determine thetoamount of losses reduction based aon the bend and to recalculatecan allowable sure for the also particular On which some applications wherepressure corrosiondrop. is anticipated, affectbend. viscosity, in turn will affect Wall thick-the life of the can be extended wall thickness compensate. nds: Identify the tube end fittings nessby at increasing bent tube the sections will haveto reduced wall size. This will require

the designer to determine the amount of reduction based on the bend

E D

using manufacturers’ catalogs.

at ure can be a factor with tubing and fittings, but usually not until temperatures are extreme (350° radius and to recalculate allowable working pressure forselection the particular ° F). High and low temperatures can affect O-rings in fittings and the of tubing.

bend. On some applications where corrosion is anticipated, the life of the

elivery: Availability, time to assemble, special packaging, ship-

ion: Determine where the or replacement tube the assembly is to be to used.

Most often, only a dusystem can benew extended by increasing wall thickness compensate. ping, and documentation.  f the original will be required provided the original assembly gave acceptable service life. To fulfill irements of the application, additional questions may need to be answered such as:

T

emperature can be a factor with tubing and fittings, but usually not until temperatures are extreme (350° F to -45° F). High and Where will assem bly be used Fluid/ambient temp.

Gov. & industry standards temperaturesFluid can compatibility affect O-rings in fittingsMechanical and the selection Working and surge low pressures loads ofion? tubing.

Suct ion applicat Environm ent al Excessive abrasion

1. All hydraulic tubing is measured by its: pplication: Determine where the new or replacement tube assema. O.D. bly is to be used.

Most often, only a duplicate of the original will be b. I.D. : Tube selection and fittings must assure compatibility with the fluid to be circulated in the system, required, provided the original assembly gave acceptable service c. Wall thickness. as t he environm ent al condit ions. d. Material hardness. any swivel elbow fittings contain O-rings which must be compatible with the fluid and environmental e. Material type.

Type of t ubing Fitting type

A

Minim um bend radius Rout ing

Expect ed service life Ext ernal corrosion

ns.

nual- 07/ 01/ 16 6

AUGUST 2020

Connector & Conductor Cetification• 55

Test Your Skills 2. Anticipating a corrosion problem one could: a. Increase volume. b. Decrease volume. c. Increase pressure. d. Decrease wall thickness. e. Increase wall thickness.

See correct answers on page 39.

FIGURE IT OUT

New Problem:

Ram Does Not Retract on a Forming Press

By Robert Sheaf, CFPAI/AJPP, CFPE, CFPS, CFPECS, CFPMT, CFPMIP, CFPMMH, CFPMIH, CFPMM, CFC Industrial Training

»

Robert Sheaf has more than 45 years troubleshooting, training, and consulting in the fluid power field.

Email rjsheaf@cfc-solar.com or visit his website at www.cfcindustrialtraining.com. Visit www. fluidpowerjournal.com to view previous problems.

THE CIRCUIT SHOWN HERE was a press I designed some years ago. A problem developed with the ram not returning after forming a steel truck bumper. The pressure-reducing valve that was leaking out of the pressure adjustment screw was replaced with one from the company’s stock. It was the D08 module located under the main directional valve.

The pressure-reducing valve setting was adjusted to accommodate the different bumper designs. If the pressure was too high when pressing, the ram die would cause the material to tear. Each bumper design had a specific tonnage that would work well in the forming process.

When the new valve was set to pressures below 1,200 psi, the ram could not be pulled off the formed bumper.

The operator would have to increase the pressure on the reducing valve to about 1,700 psi to get the ram to retract.

Once off the formed bumper, the press would retract with less than 900 psi.

What could be the solution?

New!

S

Solution to the May 2020 problem:

Strange Noise when Starting a Hydraulic Motor When you normally experience noise in a system at start up, it usually is an air problem.

A few months earlier, I was troubleshooting a power unit that was noisier than two identical units nearby. The units had hinged tops on the reservoirs, and the noisy one had a bad problem of aeriated oil. But there were no areas with a small amount of oil on the floor, indicating where air could inter when the unit was running. I smeared #2 grease on each of the joints on the intake line while it was running. I found that one joint with grease quieted down for 15 to 30 seconds each time I greased it. Resealing that joint solved the problem. I did the same thing to the new hose on the rolling mill and found that one hose fitting was causing the problem. Air can get in where oil will not leak out.

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AUGUST 2020

7

IFPS ANNOUNCES 2020 HALL OF FAME special award was established to acknowledge individuals who have dedicated their careers and have made significant contributions to fluid power technology. This year’s host, the International Fluid Power Society, is excited to announce the induction of the 2020 class.

“The Fluid Power Hall of Fame recognizes the lifelong contributions of individuals whose innovative ideas, entrepreneurial spirit, and hard work have significantly contributed to the continuing success of the fluid power industry,” said Rance Herren, Hall of Fame committee chair. “The inductees for the 2020 class were selected from a slate of outstanding candidates, and I am, along with the selection committee, truly thrilled to honor these visionary and influential leaders.”

Nominations were open Jan. 1 to April 15 to any individual, living or deceased, who demonstrated excellence within their 25-plus year fluid power career. A six-member selection committee from diverse segments of the industry chose the inductees based on their contributions to the fluid power industry using a subjective and objective evaluation system.

A

BIOGRAPHIES

GEORGE BENIEK

ALAN HITCHCOX

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TO SAY GEORGE BENIEK has participated in the widest, most unusual fluid power applications during more than 60 years in the industry is an understatement. From being the first employee of 1961’s brand new Char-Lynn Test Lab, to hydraulically controlling and rotating a 24-foot theater stage, to coordinating the combined development efforts of the University of Minnesota with Eaton Corporation to create an energy-efficient fluid power-operated Plymouth Valore, George has certainly traversed beyond the normal breadth of the field! George holds the patent for inventing Eaton’s low-speed-high-torque hydraulic motor. A veteran who served with the U.S. Army in Korea, George serves the Chanhassen American Legion Post and volunteers on its annual Fishing for Life summer veteran-family outings on Lake Minnetonka. But perhaps the accomplishment of which George is most proud is his role as cofounder overseer of the Minneapolis-St. Paul IFPS Chapter 5 Past President’s Scholarship Fund.

This one-year, full scholarship, awarded to a second-year fluid power student at one of four Minnesota colleges, has been awarded annually for 20 years and accounts for cumulative awards totaling nearly $100,000.

AFTER 33 YEARS as writer and editor at Hydraulics & Pneumatics magazine, Alan Hitchcox notes, “The most indelible aspect of my career: all the great people I’ve met and with whom I’ve worked”. Alan’s leadership at the periodical promoted the fluid power industry and advanced the cause of hydraulic and pneumatic power transmission and emerging technologies across a broad range of industries. Alan has served as the committee chair for NFPA’s Electronic Sensors Committee and edited NFPA’s Recommended Practices for both pressure and linear-displacement transducers. Not content with merely industry impact, Alan edited and appeared in episode 15, season 10, “Hydraulics,” of the popular television program “Modern Marvels.” Having started his career in publishing as assistant editor for Power Transmission Design magazine in 1981, Alan also organized technical seminars on fluid power technology and presented technical papers at IFPE. “I did not seek a career in fluid power,” Alan said. “Rather, after I fell into it, I developed a passion to learn as much as I could and have always found the wide variety of applications astounding.”

For more information, visit www.FluidPowerHallofFame.org.

HENRY HAVER

WINNER OF 2019’S Coolest Thing Made in Michigan award, Henry “Bud” Haver culminates his 25-year tenure with Peninsular Cylinder of Roseville, Michigan, as its president of seven years. Peninsular’s custom booster cylinder won the second annual Coolest award, sponsored by the Michigan Manufacturers Association, from a field of 10 extremely diverse contest finalists of Michigan things. He is largely responsible for Peninsular Cylinder’s expansion over three decades as well as its solid internal training program. With 42 years in fluid power, Bud earned Certified Fluid Power Specialist Certification in 1994 and subsequently earned Certified Solid Works Associate status. Bud recently joined the NFPA’s Cylinder Standards Committee. He has served on Macomb Community College’s Business Advisory Council, contributed to the publication “Basic Hydraulics – Component and Circuit Design, Operation, & Analysis,” and authored numerous fluid power periodical articles. Bud also directed development of Peninsular’s strong engineering and manufacturing team and led the company’s development and implementation of an ISO-9001:2015 quality system.

The Fluid Power Hall of Fame recognizes the lifelong contributions of individuals whose innovative ideas, entrepreneurial spirit, and hard work have significantly contributed to the continuing success of the fluid power industry.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

PETER NACHTWEY

IN A CLASS BY HIMSELF, Peter Nachtwey has well over 35 years laser-focused on the application of microelectronics to control theory, particularly in its application to fluid power industrial machinery. With bachelor’s degrees in electrical engineering and computer engineering, Peter began working with controls theory by writing software to synchronize wood-carrying, hydraulically powered conveyors, as well as servo-hydraulic controls to be utilized by sawmill OEMs. In 1985, Peter JOHN G. joined the fledgling Delta Computer Systems and began SLATER developing hydraulic servo controllers for programmable logic controllers. Peter became president of Delta in 1992 and has continued to be the nationally recognized, leading proponent and expert on advanced control Part number Part description algorithms as well as simulation programs to enable SWINGFLGLCK2062 Swing hose FlangeLock kit less cumbersome methods for testing and developing machinery. He has made numerous presentations at SWINGCAP2062 Swing circuit cap kit technical conferences worldwide, including at IFPE, TRAVELFLGLCK2462 Travel hose FlangeLock kit NFPA, and FPDA, and has published technical papers for metals industries, food processing, dam control TRAVELCAP2462 Travel circuit cap kit These biographies systems, forest products, complex testing systems, Front attachment were compiled FRONTATTFLGLCK326162 FlangeLock kit and press applications – to name but a few. “My main with information FRONTATTCAP326162 Front attachment cap kit submitted with each contribution,” Peter says, “has been in control theory person’s nomination Boom arch hose for hydraulic systems and making automation using BOOMARCHFLGLCK3262 FlangeLock kit and supplemented hydraulics simpler, more precise, faster, and cheaper.” with additional BOOMARCHCAP3262 Boom arch hose cap kit information from other sources.

CONTAMINATION CONTROL

RETIRED FROM AN ILLUSTRIOUS CAREER in fluid power engineering that began in WWII as a naval Seabee, John G. “Jack” Slater has earned credentials as both a Wisconsin Professional Engineer and an IFPS Certified Fluid Power Engineer. Jack attained his PhD in fluid flow from the University of Wisconsin and presented his doctoral thesis, “Energy Loss in Liquid Flow in Straight Pipes under High Pressure,” to the 1953 American Society of Civil Engineering meeting inTMMinneapolis. Of his thesis and presentation, Jack notes that “2000 psi was high pressure at that time.” Since then, Jack has been employed both in industry and academia, having worked for A.O. Smith, Industrial Hydraulics Company, and Applicable machines Number of parts Weight (kg) Broome Inc., all in Wisconsin, before moving on to EX5600, EX8000 16 xtenure 2062U - red at FlangeLock 6.7 aEX3600, successful 27-year Milwaukee School ofEX3600, Engineering. began as program EX5600, EX8000 At MSOE, 16 x Jack 2062 - cap 4.5 director for fluid power engineering technology EX3600, EX5600, EX8000 16 x 2462U - purple FlangeLock 7.7 degrees and subsequently became chairman of MSOE’s mechanical engineering Jack EX3600, EX5600, EX8000 16 x 2462 - cap department.6.4 won the Karl O. Werwath Research 14 x 3262U -Distinguished black FlangeLock EX3600, EX5600, EX8000 8.9 4 x 3261U - black & silver FlangeLock Award in 1983 for the design and installation of 14 x 3262 - cap EX3600, EX5600, EX8000 9.5 hydraulics to move a sailboat’s 4 x 3261 - capkeel to the right or left to facilitate tacking.  EX3600, EX5600, EX8000 20 x 3262U - black FlangeLock 9.9

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Routine and scheduled maintenance of hydraulic systems are vital to getting the most out of your Hitachi Mining Excavator. While maintenance plays the largest role in the prevention of unnecessary machine downtime, it can also expose the hydraulic system to high levels of contamination rapidly decreasing component longevity. The importance of contamination control is sometimes overlooked when performing maintenance due to incorrect practices being used.

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AUGUST 2020

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SELF-CLEANING

FILTER ELIMINATES DOWNTIME FOR

SAUSAGE

By James D. Lago, sales manager for the North-Midwest region at Eaton’s Filtration Division

CO-PACKER

Chances are the pork sausage on your breakfast plate came home from the grocery store frozen-food section. If it’s one of the big-name brands, chances are equally good that it was not processed by the company whose name is on the package but by a co-packer – a company that specializes in that particular product.

One of the larger co-packers in the Midwest produces tons of frozen pork sausage every day in a continuous process that includes blending the meat and spices, stuffing the casings or forming the patties, cooking the sausages, and finally freezing the ready-to-eat product. That final critical step is accomplished in a sophisticated waterfall pouch chiller using a food-grade propylene glycol/water mixture at -5° F (-21° C).

Because the glycol/water mixture can come into physical contact with the product, and because nothing is perfect – including packaging – the chiller is equipped with bottom-mounted screens to catch any bits of sausage or packaging materials that may get into the liquid and keep them out of the heat exchangers. This function is critical to the process because the glycol/water mixture must be maintained within a narrow temperature range to meet strict food-safety regulations.

If the screens become clogged, the flow of glycol/water through the heat exchangers is reduced, and the temperature in the processing area rises. If the temperature exceeds food-safety guidelines, then the entire batch of sausage and the potentially contaminated glycol/water mixture would have to be discarded or “reworked” if damage was minor.

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AUGUST 2020

“That happened two or three times a year on average,” said Jeff Simpson, a fluid process and industrial wastewater engineer at Crane Engineering in Kimberly, Wisconsin. “The cost of replacing the process fluid alone was about $20,000 per incident.

Additionally, maintenance costs were running in the $40,000 to $60,000 range per year, and they still weren’t preventing the over-temperature incidents.

The customer was walking a fine line between the cost of labor and downtime to clean the

screens and sumps, and the cost of lost production while the chiller was out of operation being cleaned.

While the situation clearly called for a more effective filtration system, handling the 1,000 GPM (227 m³/h) flow of glycol/water through the system presented an unusual challenge. That challenge was made even more difficult by the customer’s request for a solution that did not require the system to be shut down for filter maintenance.

The standard alternatives were either a multifilter system with enough extra capacity to handle the flow while one of the filters was offline for maintenance or a self-cleaning filter that didn’t require downtime for maintenance.

While the self-cleaning filter offered significant cost benefits, the volume of glycol/water that had to be filtered was greater than the capacity of then-available standard models.

“We decided to pursue the self-cleaning alternative,” Simpson said, “and to prove the concept we installed an Eaton DCF-800 self-cleaning filter on a side stream. That particular filter is rated for 60 GPM (13.5 m³/h), and in several months of operation at maximum flow it never clogged or required any maintenance.”

The DCF filter consists of a cylindrical stainless steel housing that holds a filter element.

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Fluid enters inside the element and flows through it to the outlet, depositing any contaminants on the inside wall of the element.

A spring-loaded cleaning disc moves up and down, wiping the filter element clean and depositing the contaminants at the bottom of the housing, out of the flow path. This prevents a resuspension. Standard cleaning frequency can be based on time, differential pressure, manual selection, or any other application-specific criteria. Because it remains in service while being cleaned, the DCF filter satisfied the customer’s no-maintenance-downtime requirement.

“With the concept proven, the next hurdle was finding a self-cleaning filter with enough capacity to handle the full 1,000 GPM (227 m³/h) flow of glycol/water in the system,” Simpson said.

“Through our contacts with Eaton, we knew they were working on a larger version of the DCF series, and this application was a perfect fit for that unit.”

Crane was able to procure one of the first of the new Eaton DCF-3000 filters produced and installed it in the co-packer’s chiller circuit. All components in contact with the product are made of stainless steel and the filter is rated at 1,100 GPM (250 m³/h) while filtering up to 100 microns. It stands 8 feet (2.40 meters) tall and weighs approximately 720 pounds (325 kilograms) when fully flooded. It can be equipped with slotted wire strainer elements ranging from 50 to 1,140 microns to meet a broad range of application requirements.

The unit installed on the co-packer’s chiller uses a 75-micron strainer to provide minimum flow restriction. The output is then routed through an Eaton FLOWLINE stainless The first Eaton steel bag filter housDCF-3000 filter ing with a 10-micron ran for 3.5 needle felt bag filter years with no for the final cleaning maintenance before entering the and no heat exchanger. downtime.

“The first Eaton DCF-3000 filter ran for 3.5 years with no maintenance and no downtime,” Simpson said. “The customer still uses the screens at the bottom of the chiller to backstop the system, but they no longer plug up because the DCF-3000 filter keeps the entire glycol/ water stream so clean.”

“Based on that performance, the customer has since installed DCF-3000 filters on similar systems in two of their other packing plants,” Simpson concluded. “Right now we are talking to them about a corporate back-up filter as a plug-and-play solution for any future downtime once the DCF-3000 filters now in service eventually require some maintenance.”  WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

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www.mainmanufacturing.com Main's website provides quick access to the 120 page catalog that includes popular styles of MAIN Manufacturing’s extensive offering of carbon and stainless Hydraulic Flanges and Components – ready for immediate shipment.

Metric ordering information, weld specs, and dimensional information included. The “Quick Reference Guide” helps specify less popular items often stocked or quickly manufactured (generally 3-4 days) at our US plant. “Create-AFlange” offers more parts than the catalog — by picture. If it’s not here, or for questions, E-mails may be sent to get your answer quickly.

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I F P S U P D AT E

CELEBRATING 60 YEARS

IFPS Annual Meeting

ORDER TODAY!

ifps.org/training-resources-handbook

To the IFPS Membership, We have been closely monitoring activity related to the COVID-19 pandemic. With our board of directors, staff, and members’ safety in mind, the leadership team and I made the difficult decision to cancel our in-person 2020 Annual Meeting in September and instead conduct the meeting series online.

The online meetings will take place Sept. 11 through Sept. 24. All IFPS members are invited to register for the entire meeting series or any online committee meeting at ifps.org.

It will certainly be sad not to see everyone in person. However, I am sure you understand the travel restrictions and safety concerns that face us all.

Please let me know if you have any questions or concerns.

Donna Pollander, ACA Executive Director

This is a great technical resource!

Head and shoulders above any other fluid power reference book available today!"

Sam Kaye, CFPSD, CFPMIP, CFPMMH, CFPMIH, CFPS

Benefits of IFPS Membership

Webseminar August 13, 2020 • 12:00 – 1:00 Eastern Presenter: Dean Houdeshell, PE, CFPE, CFPAI, CFPS Whether you are working on a simple or complex hydraulic system, it is important to remember the basics. Many times, it is the simple or obvious things that get overlooked. In this webinar, we will review some of the fundamentals of hydraulics and a troubleshooting process you can use right away. Additionally, we’ll share some real-world examples to help you see the process in action.

Basic Hydraulic Troubleshooting

I’m a longtime member of the IFPS and, over the years, my membership has given me instant access to up-todate study manuals and a wealth of information about fluid power.

It helped me to stay current in the industry through Fluid Power Journal and regular educational webinars.

Dean Houdeshell, PE, CFPE, CFPAI, CFPS, Director of Engineering, CemenTech

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

AUGUST 2020

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I F P S U P D AT E

Certification Testing Locations ndividuals wishing to take any IFPS written certification tests can select from convenient locations across the United States and Canada. The IFPS is able to offer these locations through its affiliation with The Consortium of College Testing Centers provided by National College Testing Association.

I

TENTATIVE TESTING DATES FOR ALL LOCATIONS: August 2020 Tuesday 8/4 • Thursday 8/20 September 2020 Tuesday 9/1 • Thursday 9/17 October 2020 Tuesday 10/6 • Thursday 10/22 November 2020 Tuesday 11/3 • Thursday 11/19 December 2020 Tuesday 12/1 • Thursday 12/17

ALABAMA Auburn, AL Birmingham, AL Calera, AL Decatur, AL Huntsville, AL Jacksonville, AL Mobile, AL Montgomery, AL Normal, AL Tuscaloosa, AL ALASKA Anchorage, AK Fairbanks, AK ARIZONA Flagstaff, AZ Glendale, AZ Mesa, AZ Phoenix, AZ Prescott, AZ Scottsdale, AZ Sierra Vista, AZ Tempe, AZ Thatcher, AZ Tucson, AZ Yuma, AZ ARKANSAS Bentonville, AR Hot Springs, AR Little Rock, AR CALIFORNIA Aptos, CA Arcata, CA Bakersfield, CA Dixon, CA Encinitas, CA Fresno, CA Irvine, CA Marysville, CA Riverside, CA Salinas, CA San Diego, CA San Jose, CA San Luis Obispo, CA Santa Ana, CA Santa Maria, CA Santa Rosa, CA Tustin, CA Yucaipa, CA COLORADO Aurora, CO Boulder, CO Springs, CO Denver, CO Durango, CO Ft. Collins, CO Greeley, CO Lakewood, CO Littleton, CO Pueblo, CO DELAWARE Dover, DE Georgetown, DE Newark, DE FLORIDA Avon Park, FL Boca Raton, FL Cocoa, FL Davie, FL Daytona Beach, FL Fort Pierce, FL Ft. Myers, FL Gainesville, FL Jacksonville, FL Miami Gardens, FL Milton, FL New Port Richey, FL Ocala, FL Orlando, FL Panama City, FL Pembroke Pines, FL Pensacola, FL Plant City, FL Riviera Beach, FL Sanford, FL

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AUGUST 2020

Tallahassee, FL Tampa, FL West Palm Beach, FL Wildwood, FL Winter Haven, FL GEORGIA Albany, GA Athens, GA Atlanta, GA Carrollton, GA Columbus, GA Dahlonega, GA Dublin, GA Dunwoody, GA Forest Park, GA Lawrenceville, GA Morrow, GA Oakwood, GA Savannah, GA Statesboro, GA Tifton, GA Valdosta, GA HAWAII Laie, HI IDAHO Boise, ID Coeur d ‘Alene, ID Idaho Falls, ID Lewiston, ID Moscow, ID Nampa, ID Rexburg, ID Twin Falls, ID ILLINOIS Carbondale, IL Carterville, IL Champaign, IL Decatur, IL Edwardsville, IL Glen Ellyn, IL Joliet, IL Malta, IL Normal, IL Peoria, IL Schaumburg, IL Springfield, IL University Park, IL INDIANA Bloomington, IN Columbus, IN Evansville, IN Fort Wayne, IN Gary, IN Indianapolis, IN Kokomo, IN Lafayette, IN Lawrenceburg, IN Madison, IN Muncie, IN New Albany, IN Richmond, IN Sellersburg, IN South Bend, IN Terre Haute, IN IOWA Ames, IA Cedar Rapids, IA Iowa City, IA Ottumwa, IA Sioux City, IA Waterloo, IA KANSAS Kansas City, KS Lawrence, KS Manhattan, KS Wichita, KS KENTUCKY Ashland, KY Bowling Green, KY Erlanger, KY Highland Heights, KY Louisville, KY Morehead, KY

LOUISIANA Bossier City, LA Lafayette, LA Monroe, LA Natchitoches, LA New Orleans, LA Shreveport, LA Thibodaux, LA MARYLAND Arnold, MD Bel Air, MD College Park, MD Frederick, MD Hagerstown, MD La Plata, MD Westminster, MD Woodlawn, MD Wye Mills, MD MASSACHUSETTS Boston, MA Bridgewater, MA Danvers, MA Haverhill, MA Holyoke, MA Shrewsbury, MA MICHIGAN Ann Arbor, MI Big Rapids, MI Chesterfield, MI Dearborn, MI Dowagiac, MI East Lansing, MI Flint, MI Grand Rapids, MI Kalamazoo, MI Lansing, MI Livonia, MI Mount Pleasant, MI Sault Ste. Marie, M Troy, MI University Center, MI Warren, MI MINNESOTA Alexandria, MN Brooklyn Park, MN Duluth, MN Eden Prairie, MN Granite Falls, MN Mankato, MN MISSISSIPPI Goodman, MS Jackson, MS Mississippi State, MS Raymond, MS University, MS MISSOURI Berkley, MO Cape Girardeau, MO Columbia, MO Cottleville, MO Joplin, MO Kansas City, MO Kirksville, MO Park Hills, MO Poplar Bluff, MO Rolla, MO Sedalia, MO Springfield, MO St. Joseph, MO St. Louis, MO Warrensburg, MO MONTANA Bozeman, MT Missoula, MT NEBRASKA Lincoln, NE North Platte, NE Omaha, NE NEVADA Henderson, NV Las Vegas, NV North Las Vegas, NV Winnemucca, NV

CELEBRATING 60 YEARS

NEW JERSEY Branchburg, NJ Cherry Hill, NJ Lincroft, NJ Sewell, NJ Toms River, NJ West Windsor, NJ NEW MEXICO Albuquerque, NM Clovis, NM Farmington, NM Portales, NM Santa Fe, NM NEW YORK Alfred, NY Brooklyn, NY Buffalo, NY Garden City, NY New York, NY Rochester, NY Syracuse, NY NORTH CAROLINA Apex, NC Asheville, NC Boone, NC Charlotte, NC China Grove, NC Durham, NC Fayetteville, NC Greenville, NC Jamestown, NC Misenheimer, NC Mount Airy, NC Pembroke, NC Raleigh, NC Wilmington, NC NORTH DAKOTA Bismarck, ND OHIO Akron, OH Cincinnati, OH Cleveland, OH Columbus, OH Fairfield, OH Findlay, OH Kirtland, OH Lima, OH Maumee, OH Newark, OH North Royalton, OH Rio Grande, OH Toledo, OH Warren, OH Youngstown, OH OKLAHOMA Altus, OK Bethany, OK Edmond, OK Norman, OK Oklahoma City, OK Tonkawa, OK Tulsa, OK OREGON Bend, OR Coos Bay, OR Eugene, OR Gresham, OR Klamath Falls, OR Medford, OR Oregon City, OR Portland, OR White City, OR PENNSYLVANIA Bloomsburg, PA Blue Bell, PA Gettysburg, PA Harrisburg, PA Lancaster, PA Newtown, PA Philadelphia, PA Pittsburgh, PA Wilkes-Barre, PA York, PA

SOUTH CAROLINA Beaufort, SC Charleston, SC Columbia, SC Conway, SC Graniteville, SC Greenville, SC Greenwood, SC Orangeburg, SC Rock Hill, SC Spartanburg, SC TENNESSEE Blountville, TN Clarksville, TN Collegedale, TN Gallatin, TN Johnson City, TN Knoxville, TN Memphis, TN Morristown, TN Murfreesboro, TN Nashville, TN TEXAS Abilene, TX Arlington, TX Austin, TX Beaumont, TX Brownsville, TX Commerce, TX Corpus Christi, TX Dallas, TX Denison, TX El Paso, TX Houston, TX Huntsville, TX Laredo, TX Lubbock, TX Lufkin, TX Mesquite, TX San Antonio, TX Victoria, TX Waxahachie, TX Weatherford, TX Wichita Falls, TX UTAH Cedar City, UT Kaysville, UT Logan, UT Ogden, UT Orem, UT Salt Lake City, UT VIRGINIA Daleville, VA Fredericksburg, VA Lynchburg, VA Manassas, VA Norfolk, VA Roanoke, VA Salem, VA Staunton, VA Suffolk, VA Virginia Beach, VA Wytheville, VA WASHINGTON Auburn, WA Bellingham, WA Bremerton, WA Ellensburg, WA Ephrata, WA Olympia, WA Pasco, WA Rockingham, WA Seattle, WA Shoreline, WA Spokane, WA WEST VIRGINIA Ona, WV WISCONSIN La Crosse, WI Milwaukee, WI Mukwonago, WI

WYOMING Casper, WY Laramie, WY Torrington, WY CANADA ALBERTA Calgary, AB Edmonton, AB Fort McMurray, AB Lethbridge, AB Lloydminster, AB Olds, AB Red Deer, AB BRITISH COLUMBIA Abbotsford, BC Burnaby, BC Castlegar, BC Delta, BC Kamloops, BC Nanaimo, BC Prince George, BC Richmond, BC Surrey, BC Vancouver, BC Victoria, BC MANITOBA Brandon, MB Winnipeg, MB NEW BRUNSWICK Bathurst, NB Moncton, NB NEWFOUNDLAND AND LABRADOR St. John’s, NL NOVA SCOTIA Halifax, NS ONTARIO Brockville, ON Hamilton, ON London, ON Milton, ON Mississauga, ON Niagara-on-the-Lake, ON North Bay, ON North York, ON Ottawa, ON Toronto, ON Welland, ON Windsor, ON QUEBEC Côte Saint-Luc, QB Montreal, QB SASKATCHEWAN Melfort, SK Moose Jaw, SK Nipawin, SK Prince Albert, SK Saskatoon, SK YUKON TERRITORY Whitehorse, YU UNITED KINGDOM Elgin, UK GHAZNI Kingdom of Bahrain, GHA Thomasville, GHA EGYPT Cairo, EG JORDAN Amman, JOR NEW ZEALAND Taradale, NZ

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

I F P S U P D AT E

AVAILABLE IFPS CERTIFICATIONS CFPAI Certified Fluid Power Accredited Instructor CFPAJPP Certified Fluid Power Authorized Job Performance Proctor CFPAJPPCC Certified Fluid Power Authorized Job Performance Proctor Connector & Conductor CFPE Certified Fluid Power Engineer CFPS Certified Fluid Power Specialist (Must Obtain CFPHS & CFPPS) CFPHS Certified Fluid Power Hydraulic Specialist CFPPS Certified Fluid Power Pneumatic Specialist CFPECS Certified Fluid Power Electronic Controls Specialist CFPMT Certified Fluid Power Master Technician (Must Obtain CFPIHT, CFPMHT, & CFPPT) CFPIHT Certified Fluid Power Industrial Hydraulic Technician CFPMHT Certified Fluid Power Mobile Hydraulic Technician CFPPT Certified Fluid Power Pneumatic Technician CFPMM Certified Fluid Power Master Mechanic (Must Obtain CFPIHM, CFPMHM, & CFPPM) CFPIHM Certified Fluid Power Industrial Hydraulic Mechanic CFPMHM Certified Fluid Power Mobile Hydraulic Mechanic CFPPM Certified Fluid Power Pneumatic Mechanic CFPMIH Certified Fluid Power Master of Industrial Hydraulics (Must Obtain CFPIHM, CFPIHT, & CFPCC) CFPMMH Certified Fluid Power Master of Mobile Hydraulics (Must Obtain CFPMHM, CFPMHT, & CFPCC) CFPMIP Certified Fluid Power Master of Industrial Pneumatics (Must Obtain CFPPM, CFPPT, & CFPCC) CFPCC Certified Fluid Power Connector & Conductor

Tentative Certification Review Training In-house Review Training – an IFPS Accredited Instructor will come to your company (minimum 10 individuals) HYDRAULIC SPECIALIST (HS) CERTIFICATION REVIEW Onsite review training for small groups – contact kpollander@ifps.org for details August 17-20, 2020 - Houston, TX - Eaton Hydraulics | Written test: August 21, 2020 September 14-17, 2020 - Fairfield, OH - info@cfcindustrialtraining.com | Written test: September 17, 2020 November 2-5, 2020 - Houston, TX - Eaton Hydraulics | Written test: November 6, 2020 November 2-4, 2020 - Milwaukee, WI - Milwaukee School of Engineering | Written test: November 5, 2020 ELECTRONIC CONTROLS (ECS) CERTIFICATION REVIEW Onsite review training for small groups – contact kpollander@ifps.org for details August 3-6, 2020 - Fairfield, OH - info@cfcindustrialtraining.com | Written test: August 6, 2020 CONNECTOR & CONDUCTOR (CC) CERTIFICATION REVIEW Onsite review training for small groups – contact kpollander@ifps.org for details November 16-17, 2020 - Fairfield, OH - info@cfcindustrialtraining.com | Written and JP test: November 18, 2020 MOBILE HYDRAULIC MECHANIC (MHM) CERTIFICATION REVIEW Onsite review training for small groups – contact kpollander@ifps.org for details Online Mobile Hydraulic Mechanic Certification Review (for written test) offered through info@cfcindustrialtraining.com. This course takes you through all chapters of the MHM Study Manual (6.5 hours) and every outcome to prepare you for the written MHM test. Members receive 20% off.

(Test fees are additional - separate registration required.)

September 21-23, 2020 - Fairfield, OH - CFC Industrial Training | Written and JP test: September 24, 2020

INDUSTRIAL HYDRAULIC MECHANIC (IHM) CERTIFICATION Onsite review training for small groups – contact kpollander@ifps.org for details August 10-13, 2020 - Fairfield, OH - info@cfcindustrialtraining.com | Written and JP test: August 13, 2020

INDUSTRIAL HYDRAULIC TECHNICIAN (IHT) CERTIFICATION REVIEW TRAINING Onsite review training for small groups – contact kpollander@ifps.org for details Call for dates. Phone: 513-874-3225 - CFC Industrial Training, Fairfield, Ohio

MOBILE HYDRAULIC TECHNICIAN (MHT) CERTIFICATION REVIEW TRAINING Onsite review training for small groups – contact kpollander@ifps.org for details Call for dates. Phone: 513-874-3225 - CFC Industrial Training, Fairfield, Ohio

PNEUMATIC TECHNICIAN (PT) and PNEUMATIC MECHANIC CERTIFICATION REVIEW TRAINING Onsite review training for small groups – contact kpollander@ifps.org for details Call for dates. Phone: 513-874-3225 - CFC Industrial Training, Fairfield, Ohio

JOB PERFORMANCE (JP) TRAINING Onsite review training for small groups – contact kpollander@ifps.org for details Online Job Performance Review - CFC Industrial Training offers online JP Reviews which includes stations 1-6 of the IFPS mechanic and technician job performance tests. Members may e-mail askus@ifps.org for a 20% coupon code off the list price or get the code in our Members Only area for the entire IFPS Job Performance Review; test not included.

LIVE DISTANCE LEARNING JOB PERFORMANCE STATION REVIEW Onsite review training for small groups – contact kpollander@ifps.org for details E-mail info@cfcindustrialtraining.com for information.

CFPSD Fluid Power System Designer CFPMEC (In Development) Mobile Electronic Controls CFPIEC (In Development) Industrial Electronic Controls

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AUGUST 2020

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AUGUST 2020

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SERVO VALVES KEY TO AIRCRAFT CARRIER APPLICATION

By Matthew McCall, Regional Sales Manager, Moog Inc.

An F/A-18F Super Hornet

ervo and proportional valves are most commonly flow-control, spool-type valves that meter fluid from a high-pressure source—typically a pump or accumulator system—to a rotary or linear actuator of some sort. From the actuator, the fluid then passes back through the valve, returning to the low-pressure tank or reservoir, making it a “meter-in/meter-out” valve. They control position, velocity, or pressure and/or force through a closed-loop electronic control system. These valves are extremely responsive dynamically, reaching commanded setpoints in milliseconds of receiving a command (generally ~1ms to <100ms).

What makes a servo valve different than a proportional valve? A servo utilizes a spool-inbushing design, allowing for extremely precise fluid metering, with minimal leakage due to a controlled, tight diametric fit between the spool and its matched bushing, measured in millionths of an inch. With proportional valves, the spool fits neatly into the body itself, allowing for higher flows but with less precision and higher leakage.

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Fitment between the body and spool is typically measured in the ten-thousandths of an inch range. Both valve types use various methods to drive and position the spool, including mechanical feedback systems using no electronics and electrical feedback systems using an LVDT to measure the spool position. The three main spool driving systems are the nozzle/flapper hydraulic pilot design, jet-pipe hydraulic pilot design, and direct drive design, which does not use a hydraulic pilot but rather drives the spool with a mechanical linkage affixed to a linear or rotary motor or solenoid. Each design has its place in the military world: servo for extreme accuracy and precision and proportional for higher flow applications requiring less precision.

Where might you find a servo or proportional valve in a military or defense application? Look for jobs requiring the highest levels of response, reliability, precision, and accuracy. Controlling actuation systems on supersonic fighter jets and launch vehicles? Check. Stabilizing gun turrets

(Photo courtesy of U.S. Navy. or positioning RADAR arrays Photo by Mass Communication and communications antenSpecialist 2nd Class Ryan nas? Check. Testing the next Seelbach/Released) generation of advanced materials in a classified lab? Check. Thrust vector control on rockets and fin control on missile systems? Check. Catching an aircraft on the deck of the USS Gerald R. Ford? Check.

The USS Gerald R. Ford (CVN-78) is the latest and greatest aircraft carrier in the U.S. Navy’s fleet. Commissioned in July 2017, it is the largest and most advanced aircraft carrier in the world at roughly 1,100 feet in length, nearly 260 feet in beam, 25 stories tall from keel to tower, and displacing roughly 100,000 tons. The twin nuclear reactors power the ship to over 35 knots, carrying up to 90 aircraft, with a crew of around 6,000 sailors. It is a well-equipped, well-armed, floating city.

Some of the major technological advancements over the previous Nimitz-class carriers include an electromagnetic aircraft launch system and an advanced arresting gear system WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

S

The USS Gerald R. Ford (Photo courtesy of U.S. Navy. Photo by Mass Communication Specialist 3rd Class Connor Loessin/Released)

(AAG), which relies heavily on high-performance digital servo valves to precisely and accurately catch more than a half-dozen models of aircraft, each with a unique arresting profile.

The AAG is a unique example of a servo valve in a military application. There are two servo valves per arresting cable and three cables per carrier.

The cables sit just above the deck of the carrier, suspended by leaf springs, and engage a tail-hook on the aircraft as it lands. This system is capable of stopping planes moving at roughly 150 mph in less than 350 feet and in less than two seconds.

So how do these cables absorb all that kinetic energy? Each cable is connected to a series of pulleys, water twisters, cushioning cylinders, and sheeves that are connected to a hydraulic brake.

A servo valve modulates the hydraulic pressure to the brake, which works in conjunction with the water twisters to control the tension of the arresting cables both while static and when arresting an aircraft. The AAG system was designed to allow the Ford-class carriers to perform up to 270 sorties per day in extreme conditions.

The pressure on each brake is critical throughout the entire arrestment. Each aircraft requires a precise cable tension, which changes continuously throughout that two-second catchment to ensure the aircraft and its crew or payload are caught safely. Too much tension on the cable risks damaging the plane and injuring the crew; it could also snap the arresting cable, risking injury to those on the flight deck and failing to stop the plane. Too little pressure on the cable causes the plane to overshoot the landing and engage the end-stops of the cable, risking damage to the plane, the cable, and those on the flight deck.

Any pressure variance between the two brakes during an arrestment could pull the cable to one side, causing the landing aircraft to veer off course, potentially off the flight deck, or into the control tower. There is no margin for error in WWW.IFPS.ORG â&#x20AC;˘ WWW.FLUIDPOWERJOURNAL.COM

Top: F-15A-E rudder servo actuator and valve assembly (Photo courtesy of Moog Inc.) Right: Moog D638 series valve (Photo courtesy of Moog Inc.)

this mission-critical application. For this reason, the precision, accuracy, and responsiveness of a servo valve is a necessity.

To minimize leakage and be as efficient as possible, designers chose a direct drive, axis control style servo valve. The direct drive design features a linear force motor in place of a hydraulic pilot, eliminating the typical pilot-stage leakage associated with multistage valves but maintaining the responsiveness required for critical pressure control applications. Each brake has its own hydraulic power unit, which cycles intermittently to charge an accumulator that provides pressure to the servo valve and braking system, making valve leakage a major concern in the systems design.

Previous Nimitz-class carriers' Mark 7 arresting gear also used a servo valve for cable tensioning.

But the Ford class is the first to use a servo valve with an onboard pressure transducer and onboard electronics, and it is one of the first applications of a digital axis control valve in any military application. The onboard pressure transducer and electronics allow the valve to perform the PID loop closure for pressure control within the valve, eliminating the need for a separate controller and feedback system. This greatly reduced the system

complexity, componentry, and increased its reliability. The digital control functionality allowed the system designers to continuously tune the valve for things like loop and system gains, dead band compensation, signal filtering, command signal modifications, I/O and feedback modifications, and failsafe changes, many of which proved critical during development of the new AAG system. Additionally, the digital communication and software eases troubleshooting and commissioning, and it can offer insight into the health and performance of the valve both during operation and while disabled.

Though the valves can communicate over several fieldbus options to relay command, feedback, and parameter information, the AAG application uses the analog control functions and no network connection to limit security risks that can be associated with network-enabled controls. The valves are programmed for the application before being installed on the ship, and if a need arises to troubleshoot or diagnose a system issue while the valve is installed, a laptop can be connected to the valve via a service connector, and all parameters can be viewed or adjusted as required.

While catching aircraft on a 100,000-ton aircraft carrier may not seem relevant to a typical commercial or industrial fluid power application, the basic pressure control or precision metering control capabilities of servo or proportional valves are widely used in civilian industry.

The benefits and features that make these types of valves ideal for military applications can also improve productivity and quality in civilian applications. They can also reduce operating and maintenance costs with advanced diagnostic and troubleshooting capabilities. For an application that requires the highest levels of precision motion control, high reliability, or reduced operating costs, the needed solution might be a servo or proportional valve. ď Ź AUGUST 2020

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HOW FLUID POWER HELPS

CONTROL Invisible Contaminants

By Sarah Manuel, Product Manager, Norgren; Alexaundria Engleby, Product Sales Engineer, Fluid Control Valves, Norgren; and Phillip McElroy, Product Sales Engineer Manager, Air Preparation, Norgren

Long before the outbreak of Covid-19, the fluid power industry had become vigilant about achieving the highest possible standards of cleanliness, particularly with food preparation and processing.

The 2011 Food Safety Modernization Act shifted focus from responding to foodborne illness to preventing it. The act also imposed more stringent requirements on the food and beverage industry.

Ironically, a large number of recalls occurred after the act was implemented. For example, during 2018, the U.S. Food and Drug Administration recorded 1,935 food- and beverage-related recalls, 84% of which posed a serious health hazard. Most of these incidents were caused by invisible enemies, i.e., bacteria. As a consequence, despite their best efforts, food and beverage companies lost millions of dollars.

Clearly, the implementation of the highest possible safety standards required much more than just a piece of legislation.

Improving equipment hygiene With the added burden of COVID-19, all industries have had to intensify their commitment to sanitation, often in unexpected ways. For example, automakers are manufacturing components for ventilators and motor oil manufacturers are making hand sanitizers. And in the fluid power industry, actuators, coatings, seals, cylinders, and thrusters have been retrofitted and redeployed to protect food supply chains, improve air filters, and operate elevator doors.

The fluid power industry has been working hard to improve equipment hygiene, investing in capital improvements to facilities and equipment 20

AUGUST 2020

in an effort to increase product safety, protect employees, and reduce costs. What’s more, for the industry as a whole, there are several areas that continue to be a focus of innovation, especially in the design of hygienic equipment.

Foodborne illness, for example, can be reduced with stainless steel washdown equipment, which is particularly effective because food safety motors are commonly exposed to moisture, humidity, and specific corrosion-causing chemicals. Moreover, specially engineered stainless steel motors are now manufactured without paint, which can flake into food, hold in moisture, and hide corrosion.

Finally, many designs offer totally enclosed nonventilated equipment, which does not use fans or fan covers, both of which are difficult to clean and can breed bacteria.

and disadvantages. Hydraulics is usually used in applications that require high pressure and force (though hydraulics is not ideal for food applications because there is some risk that fluid could leak and contaminate the material).

For applications where only low-to-moderate force is needed, pneumatics is preferable. For an accurate level of torque, electrical systems are quicker and more user friendly. Typically, a combination of all three may be required for complex equipment.

When selecting a pneumatic system, for example, special consideration should be given to the construction of components such as actuators, valves, circuits, and compressors.

That’s because properly designed components will reduce the presence of small crevices that can foster bacterial growth by trapping food products in hard-to-clean areas.

Components and systems to minimize contamination The critical role of pinch valves

To prevent contamination, selecting the optimal material and design components for food processing equipment is crucial. Regardless of the choices, several factors need to be taken into consideration: surface materials may be better suited • Some

than others for food handling.

• Maintaining

clean equipment may require the identification of water impurities and food soils involved in the cleaning process. cleaning procedures must be in place • Stringent

to maintain hygienic equipment.

Additionally, design engineers must choose the appropriate technology to fabricate to provide the motion and muscle required to do the work. Pneumatic, hydraulic, and electrical systems all provide unique advantages

The introduction of unwanted material into food and beverages is an inevitable part of the production process. For example, lubricants, such as O-ring grease, can come into direct contact with a product as it moves through a series of pumps, motors, valves, sensors, actuators, and fittings. The FDA has clear guidelines on contaminants that, at acceptable levels, do not cause harm.

Ensuring that a product is free of harmful bacteria is always a primary concern. For example, E. coli and Salmonella are naturally occurring bacteria present in and around many food and beverage products. Both can be introduced into automation equipment when the food or beverage material is in direct contact with the WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

processing components. However, newer automated system designs that employ prepacked, sterilized, FDA-approved tubing or membrane bags can greatly reduce the possibility of introducing bacterial contamination. Contamination can be further reduced by using a pinch valve that interacts with the tubing and never touches the fluid material being dispensed.

Case in point: Components on automated systems are routinely serviced and replaced at food and beverage plants. With traditional systems, where there is direct contact with the food or beverage, a pause or shutdown of the line is needed to complete periodic cleaning or servicing. By utilizing components such as pinch valves, along with tubing or membrane barrier material, servicing or replacing equipment is a quick and easy task. A pinch valve can be quickly serviced or replaced without a complete shutdown and recleaning of the line, saving valuable time and resources.

Pinch valves can also be designed for full washdown cleaning or sterilization procedures that don’t require them to be removed from equipment. For example, in the biopharma sector, single-use disposable technologies (SUDs) have been adopted as an effective alternative and complement to traditional methods.

SUDs utilize disposable, closed membrane bags and tubing, while traditional technologies have directly wetted open systems. As an industry that shares the needs of biopharma, food and beverage may similarly benefit from the use of disposable consumables, such as SUDs, in its applications.

Aggressive cleaning and disinfecting Changes to cleaning processes can often make up for machines with less than ideal safety designs.

But even equipment specifically manufactured to be as effective as possible against contamination can be the actual cause of contamination. What then are the optimal materials and design components for food processing equipment? What cleaning and disinfection options and procedures are best for equipment surfaces?

One key point to stress may seem counterintuitive but is, nevertheless, a fact: aggressive cleaning and disinfection solutions are not always the most effective. More specifically, when changes to cleaning involve more aggressive chemicals or more frequent cleaning, the surfaces being cleaned may break down more quickly, becoming a dangerous source of bacterial growth. In fact, every piece of equipment – from screw heads to bends or joints or the feet of machinery – can hide contaminants.

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Consider water: It comprises approximately 95% to 99% of cleaning and sanitation solutions, carrying detergent sanitizers to the surface and moving soils or contamination away from the surface. But water contains impurities that can reduce the effectiveness of a detergent or sanitizer. Moreover, oxygen and carbon dioxide cause corrosion; bicarbonates such as sodium, calcium, and magnesium cause scaling; and chlorides, or sulfates, have been implicated in scale and corrosion.

Next, consider food soil: Everybody understands the need to prevent food soil from

touching food contact surfaces. But soil can be either visible or invisible. The primary source of soil is the food product being handled. However, minerals from water or cleaning-compound residue also contribute to films left on surfaces.

And, because soils vary widely in composition, no single detergent can dissolve or remove all types (e.g., acidic cleaners dissolve only alkaline soils [minerals], and alkaline cleaners dissolve only acidic soils and food water). In fact, improper use of detergents can actually “set” solids, making them harder to remove. So identifying soil type is critical. (Continued on page 22)

Optimize Food Quality —

Batch After Batch Emerson offers proven expertise in automation technology.

Our ASCO™ fluid control and AVENTICS™ pneumatic solutions minimize out-ofspec products and reduce compliance risks. From increasing batch quality to maintaining accurate control, our innovative technologies and proven products help protect food quality while improving efficiencies. Emerson is the supplier of choice for dairy processing automation solutions.

Learn more at: Emerson.com/ foodandbeverage The Emerson logo is a trademark and a service mark of Emerson Electric Co. ©2020 Emerson Electric Co.

AUGUST 2020

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(Continued from page 21) Once the type of soil has been established, it is necessary to consider the effects of different cleaners and their potential uses and hazards.

For example, strong alkalis, such as caustic soda, destroy microbes and dissolve protein. But they also cause corrosion. Other less powerful alkalis, like sodium carbonate, remove fats but are slightly corrosive. Phosphoric and hydrofluoric acids, which are excellent for dissolving surface mineral deposits, are corrosive to concrete, metals, and fabric.

In short, aggressive cleaning and disinfection solutions pose great challenges. Their effects are significantly mitigated by using stainless steel for the surfaces of food equipment. It provides resistance to corrosive elements, has no negative impact on individuals who handle it throughout the production cycle, and is highly reusable and recyclable.

The link between sanitation and machine maintenance One area in which innovation and creative solutions have helped with sanitation has been in machine maintenance. Many food and

beverage manufacturers have not been willing to make large investments in new equipment or upgrades. Instead, they find it more economical and equally effective to address cleaning and maintenance of their machines by means of reliable consulting services, particularly with regard to risk, equipment communications, and machine testing. Minimizing operational risk must remain a high priority if damage to installations and breaching of safety regulations caused by parts failure are to be eliminated.

There is a strong link between sanitation and machine maintenance. Fissures in the surfaces of food processing machines will increase the time it takes to properly clean the surfaces or render them uncleanable. It may not directly cause downtime in the traditional sense that the machines must be repaired. However, additional cleaning time means less time for production. Yet, there are solutions – technology platforms that enable users to be proactive about maintenance and system optimization by delivering real-time performance data, thereby enhancing productivity without sacrificing quality or efficiency.

With access to real-time data, the food industry can achieve efficiencies on the plant floor

and throughout their operations. An industrial refrigeration company, for example, can stay on top of equipment health with predictive maintenance that can eliminate any risk of downtime. And a manufacturer of baked goods can use predictive maintenance technology to automatically adjust oven temperature to match the characteristics of specific grains from different suppliers to ensure that quality remains consistent.

Responding to threats The pandemic has reminded us of the threats lurking in places we thought were completely sanitary. But it’s clear that the fluid power industry – or more specifically, those entities mostly engaged in food and beverage processing – have responded, innovated, advised, educated, and informed to keep us safe. New ideas have been implemented. More innovation is in the works.

Much has been learned. More has been accomplished. But we are still learning. Vigilance and innovation will continue. And we should never forget: we’re all in this together. 

25 Years of SPIR STAR Quality

Made in the USA www.spirstarvalves.com

SPECIALISTS IN HIGH PRESSURE: HOSE | ADAPTERS | QUICK DISCONNECTS | VALVES Up to 60,000 psi www.spirstar.com | Toll Free: 800.890.7827 | Fax: 888.893.1255 ISO 9001:2015 Certified OHSAS 18001:2007 Certified © 2020 SPIR STAR

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P RO D U C T R E V I E W

Emerson’s Food Safe ASCO Series 290 Piston Valve

»

THE ASCO SERIES 290 is a pressure operated, direct acting angle-body piston valve built for demanding applications. The design offers high flow up and options to handle a wide range of media types and operating environments. The direct acting piston and disc seal design provides tight shutoff in both directions.

The rugged watertight actuator is made from tough fiber composite and protected with a double O-ring seal.

The ASCO 290 has a variety of optional features and is approved as food safe (FDA & EC 1935/2004). It can be coupled with the ASCO PositionerD, which allows proportional control to vary and direct the flow rate of a broad range of fluids and gases on pneumatically controlled valves. Onboard LED indicators, design, and construction promise a reliable and long service life.

Suitable for general service applications (air, inert gas, water, oil, and light slurries),

the ASCO Series 290 also works for steam, hot water, and auxiliary fluids in the food-and-beverage industry. Optional features include a visual/electrical position indicator and a stroke limiter. Its straight-through body design is available in bronze or stainless steel.

For more information, visit www.emerson.com/en-us.

Kaeser Redesigns Are Quieter, Compact

»

KAESER’S ASV, BSV, AND CSV rotary screw vacuum packages offer capacities from 141 to 554 acfm at 99% vacuum. Featuring a completely new cabinet and air flow design, these 10-40 hp units offer exceptionally quiet operation in a compact footprint.

Wide-opening cabinet doors provide easy access to maintenance points. The full enclosure, TEFC motor, and gasketed doors with soundproofing offer a central vacuum solution for high-dust environments. The new cooling air flow design features a dedicated cabinet fan and topside discharge for better oil cooling.

It can be easily ducted to remove or recover waste heat while further reducing noise. The packages feature premium efficiency IE3 drive motors. The standard Sigma Control 2 controller provides detailed operating and maintenance status information. Sensors monitor temperature, pressure, and oil pressure and level.

For more information, call (877) 417-3527 or visit us.kaeser.com/vacuum.

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

AUGUST 2020

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COMPONENT SHOWCASE GUIDED DISC SLIP-IN CHECK VALVE FOR HIGH PRESSURE SERVICE Inserta® IGS (Steel) check valves, guided disc, slip-in type, may be considered for use in high pressure applications, and other challenging applications such as those with turbulent flow or high flow transients with low valve cracking pressures. Valves with nominal flow ratings up to 400 gpm are available.

These valves may be deployed in either axial or axial-radial flow configurations. Pressure drops are relatively low compared with screw-in hydraulic cartridge valves, resulting in increased system efficiency. The slip-in valves may be installed with the free flow in either direction.

These valves can be used in custom manifolds using Inserta® ICVR check valve retainers in axial flow applications, or Inserta® IGSP retainers for axial-radial flow applications. Flange type valve bodies for use with SAE J518 systems are also available.

Inserta® IGS (Steel) check valves, guided disc, slip-in type, are all steel construction with hardened and lapped discs and seats that provide positive fluid shut off. They are compatible with standard Inserta® ICS disc type slip-in valve cavities.

Blue Bell, Pennsylvania USA www.inserta.com

Thread-in guided disc check valves, in both steel, and stainless steel, are also available for 6000 psi service (consult factory for higher maximum working pressures-we are working on re-qualifying these valves for 500 bar service).

INNOVATIVE TOOLS FOR TODAY’S MACHINE DESIGNERS AGI’s industry leading ‘O’-Ring-Installing units can be tooled to accommodate all types of rings and seals. Opening stroke of spreading jaws is adjustable.

End of stroke sensing is available for both spreading and ejector jaws. All models are designed to facilitate part ejection and / or part sealing.

Now with unlimited range on the NEW AGP-10-OR! Our largest model is a very robust, heavy duty unit, and without limitation can handle any size ring with the assistance of specifically designed spreading fingers.

Jaws are t-slot bearing supported to prevent jaw breakage and offer superior load bearing performance. Both spreading and ejector jaws have independent pistons to provide exact timing of O-Ring placement.

Compact design. True parallel jaw motion for easy tooling.

Compatible with automotive, medical, and packaging applications, as well as conformance to clean room, food industry and environmentally challenging apps.

American Grippers Inc. 171 Spring Hill Road Trumbull, CT 06611 203.459.8345 www.agi-automation.com/product-category/o-ring-assembly

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All AGI’s Components Still Made In USA.

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SPECIAL AD SECTION

COMPONENT SHOWCASE WHEN YOU NEED SERVO-PILOTED VALVES FAST, CALL AIGNEP USA. We have the valves you need to get your machine up and running quickly and for a great price. In addition to our servo-piloted tappet and whisker valves, we also offer a wide range of inline valves and manifolds; all with an extensive array of operators including manual, mechanical, solenoid and air pilot, all in the most common sizes.

Our extensive range of directional control valves are grouped by body size, operator and mounting style. Few offerings feature the breadth and versatility of our inline valves with an array of functions, body sizes and operators which include manual/mechanical, air pilot and solenoid pilot offered in a wide range of coil voltages. Single base, modular and fixed-length manifold mounting capabilities are also available.

Don’t forget to also check out our fantastic line of fittings and accessories designed to make connections easy with the SWIFTFIT Universal Thread.

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Fairview, TN 37062 USA 615-771-6650 www.aignepusa.com

NEW CLIPPARD CORDIS ELECTRONIC PRESSURE CONTROLS Precise, linear pressure control within a closed-loop system with ultra high resolution and repeatability.

The Clippard Cordis is a revolutionary microcontroller primed for escape velocity from a proportional control market. Built with the highest quality Clippard EVP and DVP proportional valves at its heart, the Cordis is designed to outperform the competition in every way. With unparalleled performance and flexibility not possible with current analog proportional controllers, the Cordis makes everything from calibration to sensor variety acceptance to future development opportunities more accessible and less complicated. The future of proportional pressure control has arrived, and it’s digital.

• Smooth linear control • Resolution ≤5 mV • Real time adjustable PID control • Multiple flow configurations • Static or dynamic applications with the same proportional regulation • No integral bleed required • Accuracy ±0.25% of full scale The Cordis is adaptable to a variety of sensors that can close the loop around not only pressure, but vacuum or flow.

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For further information on the Cordis Pressure Controls or any of Clippard’s line of electronic and pneumatic valves, visit www.clippard.com.

Proudly made in the USA.

AUGUST 2020

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Hydraulic Sealing Solutions Help Jetliners Fly

By Quinn Collett, Airframe General Manager, Trelleborg Sealing Solutions, and Antonio Garcia, Segment Manager, Aerospace Americas, Trelleborg Sealing Solutions

Higher, Faster,Longer As airplane designs focus on flying at higher altitudes and speeds for longer periods, the many hydraulic systems onboard must adapt. Today’s conditions can include temperatures above 600ºF (315.5°C), temperatures as low as -65ºF (-54°C), and pressures up to 5,000 psi (345 bar).

For seal makers, this means engineering solutions that perform as well or better in much harsher conditions, all while keeping costs under control. Doing so requires a thorough understanding of the application requirements, performance benchmarks, and service life for each component in the system.

To succeed in meeting the rigorous specifications from both aircraft designers and regulatory agencies, vendors must spend significantly more upfront time understanding the unique challenges of the situation. They must also provide comprehensive recommendations to customers about installation so that testing and validation go smoothly, and reliability goals are met.

In this article, we look at three examples of recent challenges in aerospace hydraulic systems, including how the solution was developed and tested, and the benefits of each final solution.

Fuel-efficient engines: Silicone engine seals operating at 600ºF

As aircraft designers aim to design more fuel-efficient engines, operating temperatures are rising, with the latest options operating at up to 600ºF (315.5°C), well above their predecessors.

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AUGUST 2020

Although metal mesh fire seals are capable of withstanding these higher temperatures, being heavier and with limited sealing ability, they are less desirable than their silicone counterparts.

In looking at customer requirements for heat • It has a lighter weight and longer service life and flame resistance, compression set, weight, than metal mesh fire seals. service life, customizable geometry, and price, it • It reduces the number of parts due to eliminabecame clear to Trelleborg engineers that a new tion of additional thermal protection. design would be necessary. It would also need Jet cold-weather kits to meet all relevant FAA and ISO regulations.

A few years ago, Trelleborg was asked to The solution involved modifying the silidevelop a low-temperature sealing system to cone, enhancing the strengthening elements upgrade the main and nose landing-gear struts (high-temperature fabrics), and introducing on a model of jet. At extremely low temperaa new, proprietary reinforcing element. The tures, a jet’s existing seal package can leak; if it prototype was tested for 36,000 flight cycles against a nacelle thrust reverser seal to deter- does, it impacts operability and performance, forcing the need for unscheduled maintenance. mine compression set and heat resistance. It Because of the size of the seal cross secsuccessfully operated at 600ºF (315.5°C) under tion and the requirements of the system (seal maximum compression loading. A separate serviceability to -65ºF [-54°C] with leakage test showed the seal could withstand a 2,000ºF (1,093°C) kerosene flame for 15 minutes under not to exceed 30 drops), Trelleborg engineers determined that a new material, rather than ISO 2685 vibration requirements.

The seal is manufactured in a variety of geom- a new design, would be needed. Ultimately, they created an ultralow temperature nitrile etries, enabling it to replace existing seals that material. The material’s lower glass transition fail at elevated temperatures and creating new options for designers seeking to extend system life. temperature enables it to be more active (flexible) at very low temperatures.

The final seal has a number of important Preaged test seals were installed on the landbenefits: • It operates at 600ºF (315.5°C) and can be modi- ing-gear components and tested using extreme cold soaking under lower pressure. No hydraulic fied to perform at higher temperatures.

• It meets all FAA and ISO fire seal requirements. leaks were observed. As a result, the increase in service life was determined to be significantly • It satisfies the intended lifetime of 60,000 flight cycles minimum. higher than that of previous components.

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Testing conducted on the system included: • actuator and seal endurance testing, which mimics taxi, takeoff, flight, landing, and landing taxi conditions; • low-temperature, low-pressure static and dynamic seal testing; • low-temperature, high-pressure static and Trelleborg, through its ServicePLUS pro- dynamic seal testing; and gram, developed and now assembles kits that • environmental and vibration testing. have greatly reduced procurement complexToday, the final system delivers a number ity. Nine parts were reduced to a single part of major benefits, including long service life for the lightweight nose landing gear, and 15 and the ability to perform well in harsh sealparts were reduced to one for the lightweight ing environments. It successfully addresses main landing gear. all needs of today’s modern aircraft, which Tests of the jet’s nose landing-gear strut differ extensively in terms of materials and were conducted at Wright-Patterson Air flight requirements.

Force Base in early 2018 with the equipment becoming operational shortly thereafter.

Regulations The combination of customer requireBoeing 787 Dreamliner primary flight ments and government regulations for today’s control actuation aircraft can be challenging for vendors to navTwo simultaneous challenges brought igate. The examples above demonstrate the about significant design changes in the Boeing importance of in-depth knowledge of not only 787’s primary flight controls sealing system. parts standards for aircraft but also regulations First, the aircraft’s design team introduced concerning ETOPS and flutter (oscillation). composite materials into the body and wings, For example, on the 787, the lower hydrauparts that were previously 100% aluminum, lic system temperatures caused by the move which, in combination with other design to composite wing material and increase in changes, resulted in a lower hydraulic system operating pressure mean that when the wings’ operating temperature from -20ºF (-29ºC) to hydraulic systems are subjected to high loads, -65ºF (-54ºC). Second, Boeing designed the the cylinders expand. airplane to meet extended-range twin-engine operational performance standards (ETOPS), Partnering with a vendor which required certifying it to fly up to 5.5 A complete understanding of application hours from a diversion airport. requirements, performance benchmarks, and To meet both requirements, Trelleborg service life for each component in the system is essential to successfully design elements engineers developed a tandem sealing system, comprising an active primary seal for today’s aircraft. Sometimes, the best soluand a redundant secondary seal, equipped tion requires a complete redesign of sealing with a scraper to reduce the amount of con- systems and even the creation of new matetaminant entering the system. rials. Partnering with a vendor experienced As with previous systems, the seals are in both parts and materials development can exposed to adverse conditions—low tempera- help ensure project success. ture and low pressure—before being moved Just as importantly, hydraulic system dynamically and subjected to high pressure. designers should insist that vendors be However, this time the temperature was lower, willing to spend as much time as needed and the pressure was higher at 5,000 psi (345 bar). upfront to fully understand the unique Trelleborg’s solution comprised an challenges of a seal’s application. Compreultrawear-resistant PTFE material, with a low hensive installation recommendations are glass transition temperature, spring-ener- also an essential step in ensuring the final gized seals in primary locations, and ultralow product moves swiftly through the testing temperature elastomer energized seals in and validation process.  secondary locations. The sealing system also employed an advanced seal geometry that For more information, visit www.tss.trelleborg.com. provided active back pumping to prevent excessive pressure buildup between its two sealing elements.

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AUGUST 2020

27

A L L A B O U T VAC U U M

Vacuum Pick and Place in Molding The following is an opinion article written by Dane Spivak of Davasol Incorporated, an industrial brand management firm with many clients, including Vacuforce LLC, which partnered in the writing of this article. Contact Dane Spivak by email at dspivak@davasol.com.

»

VACUUM PICK AND PLACE, or gripping, is common practice in the manufacturing of molded products. It serves many versatile purposes in processes including mold extraction, sorting, packaging, and trimming to name a few.

This article discusses a variety of vacuum products and design techniques used throughout the industry.

Vacuum cup bellows There are thousands of vacuum cups available from numerous manufacturers, so deciding which cup works best can be overwhelming. The purpose of a vacuum cup is to create a seal against the product surface, which in turn generates a lifting or gripping force. Since cups by nature wear and need to be replaced regularly, users prefer affordable long-lasting cups. Cups may need to be replaced daily, or they may last many months, depending on the application and model.

The vacuum cup model affects the performance and durability of the unit. The bellows of the cup is generally the focal point of the design.

We can categorize the cups as being flat, single bellows, or multiple bellows as shown in figure 1.

If we consider cups to be from the same manufacture and material, a flat cup usually provides the longest life; it is most stable, allowing the cup to absorb less stress forces. This allows the lip to wear at a slower rate, and therefore replacement is less frequent. However, molded products are often curved or textured, so a flat cup would be unable to seal against such a surface. In these cases, bellows cups are used since the body acts like an accordion for height and angular compensation. The more bellows, the more compensation, but less stability when gripping the load. Also, a bellows design typically is less durable due to the continuous compression of its natural rest state. A single bellows cup is the most popular choice; it offers a good balance between durability and compensation. The compensation of bellows cups is also used for compensation of the machine actuation when cups contact the part being handled.

On the topic of height compliance, using spring-loaded level compensators is a popular method of adding to height compensation to the machine actuation. Figure 2 demonstrates how the spring in the body compresses as the 28

AUGUST 2020

Figure 1: Flat, single bellows, and multiple bellows vacuum cups

Figure 2: Spring-loaded level compensators

Figure 3: Vacuum cups in nitrile (NBR) material

Figure 4: Vacuum cups in polyurethane material

Figure 5: Vacuum cups in vinyl material

Figure 6: Vacuum cups in silicone material

rod moves through the body. Most level compensators are designed for vertical compliance only, though it is not uncommon in the molding industry to see them angled where necessary when handling lightweight products. Level compensators are also a convenient method of mounting the cups and providing a vacuum outlet port.

Vacuum cup materials In molding, the key technical factors in vacuum cup materials are Shore A durometer rating (hardness), high temperature limits, and FDA compliance. Common cup materials include nitrile (NBR), polyurethane, vinyl, and silicone. The following paragraphs touch on each material individually and how it relates to the key factors. Note that the following information is typical of what is found in the industry, though there are, of course, potential variations.

NBR cups are usually rated 55 to 60 Shore A durometer. This is considered to be a relatively harder rating for a vacuum cup on the durometer scale of rubbers. Because NBR cups are harder, they do not deform (offering compliance to the part being handled) as well as a lower-durometer-rated cup. This means it may not provide as good a seal if the surface has curvature or has a pronounced texture. NBR cups are rated for temperatures up to approximately 200°F, so it will not handle hot molded parts. It also is not FDA compliant. NBR is a good basic material choice; it is durable due to its higher durometer and is relatively lower in cost. NBR can usually be identified by its most common color, black, as shown in figure 3.

Polyurethane (PU) cups range in durometers of 30 (soft) to 70 (harder). PU cups do not have a broad temperature range—approximately 50°F to 120°F. PU is not considered FDA compliant.

This material is known for its good durability, though it tends to cost more than a rubber cup.

Since NBR is lower in cost, it is often chosen over PU, though the low durometer option of PU makes it an attractive choice. PU vacuum cups come in a range of colors, so it can be difficult to identify them in the field compared to other materials. A dual-durometer-construction PU cup and multiple color options are usually a good indicator. Examples are shown in figure 4.

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Figure 7: The venturi effect and its three ports

Figure 8: Various single-stage venturi generator models

Figure 9: Multistaged vacuum venturi generator

Vinyl vacuum cups have an approximate hardness range of 45 to 55 durometer. The maximum temperature threshold is around 125°F. Vinyl can be FDA compliant. Vinyl material is not the longest lasting vacuum cup material; it tends to “work harden,” though its cost is low so it is a popular choice. The majority of vinyl cups used in industry are translucent blue, as shown in figure 5, which makes them easy to identify.

However, some PU cups can have similar colors.

We save the best for last as we move to silicone vacuum cups. Silicone lands in the durometer range of 40 to 50 for most vacuum cups. Its softness is ideal for curved and textured surfaces, though it can take away from its durability. Despite being softer, silicone offers reasonable cup longevity. Silicone cups handle temperatures up to 400°F, so it is the material of choice when it comes to vacuum gripping hot molded products. Silicone is often chosen over NBR even if the molds are within the acceptable temperature range for both, since silicone has developed a reputation as the “go to” material. Additionally, silicone is FDA compliant, which makes it necessary for many applications in the food, beverage, and medical industries. Silicone is often identified by its white and red colors, as shown in figure 6.

Venturi vacuum generators and compressed air management Venturis, also referred to as generators or ejectors, use compressed air to produce vacuum. This technology is popular in vacuum gripping and WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

pick and place for applications in molding. Electric vacuum pumps are also used, but venturis are often the preferred choice for point-of-use applications due to their simplicity, low cost, and small size. The following discusses different types of vacuum ejectors and how to minimize compressed air consumption in molding applications.

A vacuum generator produces vacuum by compressed air flowing through a venturi nozzle. The decreasing diameter of the nozzle increases the air velocity across the cavity, which creates a low-pressure pocket. This low-pressure area pulls or sucks in surrounding air, which is attached to the vacuum port. The venturi principle is named after its discoverer, Italian physicist Giovanni Battista Venturi (b. 1746). Figure 7 illustrates the venturi effect. Note that a venturi must have at least three ports to function, including the compressed air source, exhaust, and vacuum ports. Some units may have more ports for additional accessories, though it must include the aforementioned three.

Single-staged venturis are units in which the venturi has a single orifice, as shown in figure 7. There are also multistaged venturis that have more than one orifice, which we will discuss later.

Single-staged units are typically used to power a single cup or a handful at most. They are small and inexpensive. A typical single-staged venturi uses around 1 CFM of compressed air, though larger ones may consume 10 CFM or more. On average they have around a 1:2 ratio of vacuum flow to compressed air usage. They are not as efficient in producing vacuum flow as multistaged models. A variety of single-staged venturis are shown in figure 8. In molding, the cylindrical inline unit with the exhaust built into the body is popular. Multifunction units are a great way to consolidate vacuum sources and other system-related components. They can include pneumatic valves for on/off control, vacuum sensors for measurement, blow-off valves for quick release, and other control functions.

Multistaged generators contain more than one vacuum venturi, as the name suggests, with twoand three-stage units being the most common.

The purpose of more than one stage is to use the compressed air consumption more efficiently.

After the compressed air passes through the first

venturi (red in figure 9), air is pulled from ambient, then this combined air flows through the second venturi (blue in figure 9), and this combined air flows through the third venturi (cyan in figure 9). Therefore the original air used in the first venturi collects “free air” through venturis two and three. This process allows for a better vacuum flow-to-compressed-air use ratio, which is the reason multistaged units are used instead of single staged. Three-staged models are generally the cut off, as using air after three stages becomes ineffective. Multistaged generators typically power multiple cups, depending on how much vacuum flow is required, but smaller units can also be used for single cups. Single-stage generators coupled to individual cups are sometimes chosen for their simplicity of installation despite being less efficient. Multistaged venturis are larger in physical size and higher in cost, which also becomes a contributing factor in model selection.

Depending on the application, further compressed-air-saving measures can be taken.

Energy-saving kits (ESKs) can work in conjunction with vacuum generators. ESKs consist of a pneumatic valve to turn the compressed air supply on and off automatically, based on the vacuum level detected in the system by a vacuum sensor. When the vacuum level is high, the sensor signals the valve to shut off. If the vacuum level drops below the switch low setpoint, it signals the valve to turn back on and “charge up” the vacuum level of the system to its high setpoint.

ESKs are only effective when the cups get a good seal on the product surface so that vacuum can be locked into the system when the generator is not running. This is feasible for many molding pick-and-place or gripping applications with vacuum cups. In a pick-and-place application, the venturi may only run a fraction of the time, even during the product transfer cycle, thanks to the ESK. This process can reduce air consumption up to 90%. ESKs require the system or venturi to have a check valve to lock in the vacuum, as well as a vacuum valve or blow-off to exhaust vacuum and release the product. An example of a multistaged venturi coupled with an ESK, along with a typical vacuum cup circuit, is shown in figure 10. (Continued on page 30)

Figure 10: Multistaged generator coupled with an energy saving kit and typical application circuit AUGUST 2020

29

A L L A B O U T VAC U U M

(Continued from page 29) Table 1 demonstrates a simplified comparison between the many possible generator options previously discussed for an eight-cup application. All options generate around the same amount of vacuum flow and vacuum level.

However, the air consumption differs drastically.

Table 1 suggests that the three-stage and ESK option uses considerably less compressed air than the single-stage option. This is particularly significant when many machines are used across a production facility.

A quick note—vacuum filters are absolutely crucial to use with venturis. They filter out particulates before ambient air enters the generator body. Venturis have no moving parts other than air passing through, but the orifices are as small as 0.5 mm, which can clog easily without proper filtration. The same approach should be applied to the pneumatic compressed air source. Figure 11 shows common vacuum filters used in molding applications that have clear bowls for ease of visual inspection. The filter elements are also easy to clean or change.

Single Stage

Two Stage

Three Stage

Three Stage & ESK

Number of Units

8

4

1

1

Air Consumption Each

2 CFM

1.5 CFM

4 CFM

4 CFM

Total Air Consumption

16 CFM

6 CFM

4 CFM

4 CFM

Run Time Percentage

50%

50%

50%

20%

Consumption per Cycle

8 CFM

3 CFM

2 CFM

0.8 CFM

Table 1

Table 1: Compressed air consumption with venturi options generating 12 CFM and 24” Hg

Conclusion This article covered vacuum-cup styles and cup material attributes. It also touched on different venturi types and compressed air reduction techniques. Many vacuum systems or designs throughout the molding industry may qualify for improvements. Each application is unique, and professional assistance should be sought for design recommendations. 

Figure 11: Inline vacuum filters with clear bowls and replaceable elements

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2020 Fluid Power

PHOTO Contest Winners

STAFF

PICK Engineering technician Tony peers into an inner chamber of a hydraulic unit requiring repair – By the team of Ben Reeder and AA Strausbaugh, RG Group

Each year, the International Fluid Power Society and Fluid Power Journal hold a photo contest in honor of Fluid Power Professionals’ Day – June 19.

This year’s contest ran from Jan. 1 through March 31.

Thank you to all the participants who make this contest so much fun. The categories were: FUN WITH FLUID POWER: Photos that capture the joy of using, learning, or teaching about hydraulics and pneumatics.

NEW PERSPECTIVE: Photos that show fluid power used in novel ways and from views not everyone gets to see.

TEAMWORK: Photos of people working together using fluid power to get the job done.

THE MUSCLE OF FLUID POWER: Photos that capture the might of fluid power in action.

Congratulations to the following winners!

FUN WITH FLUID POWER

PEOPLE'S

CHOICE

ST 1 PLACE

Baby’s first stomp rocket

By Claudia McGaffick

2ND PLACE

Pink lemonaide pump powered by an airover-water accumulator

By Genie Wendel

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AUGUST 2020

31

NEW PERSPECTIVE

ST 1 PLACE

Growth in the foreground, Destruction in the background

By Jason Hewitt

2

ND PLACE

Stained Glass Restoration

By Genie Wendel

3RD PLACE

Looking up at the arm of a hydraulic mining shovel

By Scott Malcolm, Related Fluid Power

MUSCLE OF FLUID POWER

ST 1 PLACE

Rock crushing machine at work making big rocks small.

By Scott Malcolm, Related Fluid Power

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AUGUST 2020

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POWER OF TEAMWORK

ST 1 PLACE

2

Changing of the Guard – the new utility pole

By David Shivers

ND PLACE

Hydraulic technicians Walker and Tyler blush a bit while they make adjustments on a unit destined for the high seas By the team of Ben Reeder and AA Strausbaugh, RG Group

3RD PLACE

Graco Pumps getting the job done with the team

By Dan Thomsen, Graco

3RD PLACE

2

Rainy Day Demolition

By Claudia McGaffick

ND PLACE

On Your Marks, eight pump/motor sets ready for installation.

By Marti Wendel, Wendel Engineering LLC

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AUGUST 2020

33

ZERO-LEAK PRODUCT HOLDS TIGHT IN NASA FIRE EXTINGUISHERS

Photo courtesy of NASA

VALVES IN

NASA is always preparing for a worst-case scenario aboard a spacecraft, including constantly evaluating fire protection tools and technology. One such review revealed an opportunity for improvement.

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AUGUST 2020

Some fire extinguishers in NASA space vehicles contained carbon dioxide (CO2), which poses risks for humans, and halon, which is risky in an enclosed environment.

On a space station, CO2 in particular raises serious concern because emergency breathing equipment

doesn’t filter it. NASA sought to develop a safer option.

A fine-water-mist portable fire extinguisher made the most sense; it wouldn’t damage structures or require special cleanup procedures, and it would meet other criteria.

The extinguisher would discharge

from any orientation because it didn’t rely on gravity to produce the unique thermal properties of microatomized water droplets.

The extinguisher’s metal tank accommodated 6 pounds of water and 1.2 pounds of nitrogen gas.

Held under pressure in separate

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zero-leak valve. Doering Company of Clear Lake, Minnesota, provided that critical part. Zero-leak valves were already part of Doering’s catalog, but the level of performance required by NASA is not the industry standard. Doering was able to make an existing zero-leak valve meet the exacting requirements for space.

During the 10-year development of the fine-water-mist extinguisher, specialists like Doering were contracted to create specialized components such as the zero-leak

valve. The project team established fire test standards for microgravity environments and built a technology suitable for use in space and on earth. The final product exceeded the project’s requirements.

Nine new fine-water-mist fire extinguishers built to replace the original CO2 fire suppression devices arrived on the International Space Station by 2016. Due to a secrecy agreement with NASA, the story of Doering’s zero-leak valve was just released in the last week of April 2020.

Doering’s zero-leak valve is getting ready for another trip into space. NASA is developing the next-generation fine-watermist fire extinguishers using the same valve. The new fire extinguisher is planned for the Orion spacecraft, which is currently at Kennedy Space Center in Florida undergoing final preparations for launch on the unmanned Artemis I mission in 2021. 

Image courtesy of Thomas Cooper, Lightbox Images

Image courtesy of Angel Abbud-Madrid, Colorado School of Mines

bladders, the contents wouldn’t release until the extinguisher handle was squeezed, triggering the flow. That opened two cartridge valves and allowed the nitrogen and water to mix before discharging through the nozzle.

The effervescent water would put out flames in an open cabin, and a special wand extension attached to the nozzle could reach fires behind an instrument rack or wall.

The success of the new extinguisher hinged on one part—a

PROJECT LONG LASTING

By Michael Degan, Editor

Photo courtesy of NASA

IMPACT OF DOERING’S

Doering's zero leak valve

When U.S. astronauts Doug Hurley and Bob

“You have to be able to prove it,” Doering said. “The

“Internally the fire extinguisher is separated into

Behnken boarded the International Space Station

NASA test engineers developed the criteria that we had

two compartments,” Doering said. “One pressurized

on May 31, a new type of fire extinguisher was at

to meet as far as leakage to pass the test of holding

with 1,200 psi of water. The other chamber is nitrogen,

the ready in case of an emergency.

that pressure for 12 or 15 years at 1,200 psi.

also 1,200 psi. The valves keep those pressurized

It took 10 years to develop the innovative firefight-

“We bought the same test equipment that NASA

elements contained. When the fire extinguisher needs

ing device, and a Clear Lake, Minnesota, fluid power

was using so that we were on the same page as far

to be used, the lever controlled by the operator simul-

company had a hand in producing it.

as results. It was a matter of elevating our inspection,

taneously opens both of the Doering valves.”

Wyle Laboratories of Houston, the prime contractor for the fire extinguisher that NASA had ordered for the space station, needed a zero-leak valve and contacted Doering Company, a manufacturer of precision valves and pumps.

our validation process, our documentation.”

Though the zero-leak valve needed for the project existed, the company did have to tweak it some.

“I was quite confident from day one that we’d be able to give them what they were looking for. In the

Doering shipped the valves in the spring of 2014.

Within two years, NASA had made nine fire extinguishers and placed them in the International Space Station.

Each one contains two Doering valves.

The impact of the developments made in the pres-

“We had a niche market for that type of qualifi-

journey to get there, we did make some changes to

cation,” Russ Doering, then-president and CEO of

the product to make it even better than it was before

“It was an existing base product, but there were

the eponymous company, told Fluid Power Journal.

we started working with them. We were able to end

advances and improvements in design. Those tech-

“So they reached out to us based on our reputation.”

up meeting their expectations.”

nologies are being applied now to other valves

Doering said the company already produced the zero-leak valve Wyle needed, but demonstrating that

The valve’s job is to hold pressure in the two chambers of the new fine-water-mist portable fire extinguisher.

tigious project will be long lasting, Doering said.

that are available. It has an ongoing life after that particular project.” 

it could do the job was the challenge.

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AUGUST 2020

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Our PVB series replacement units are in-line 14 x 3262 - cap FRONTATTCAP326162 Front attachment cap kit EX3600, EX5600, EX8000 9.5 4 x 3261 - cap variable displacement piston pumps that have Boom arch hose EX3600, EX5600, EX8000 20 x 3262U - black FlangeLock 9.9 BOOMARCHFLGLCK3262 excellent operating features High Pressure Valves kit are capable FlangeLock and of operating with many types of hydraulic fluid. and Fittings BOOMARCHCAP3262 Boom arch hose cap kit EX3600, EX5600, EX8000 20 x 3262 - cap 11.3 These units are durable, offer a long service SPIR STAR is recognized as a life, and are available in six displacements to leading provider of high-pressure CONTAMINATION CONTROL meet demands of many applications.

These Routine andthe scheduled maintenance of hydraulic systems are vital to getting the most fluid out of control your Hitachiproducts Mining Excavator.

While hose including maintenance plays largest role function in the prevention of unnecessaryfor machine downtime, it can also expose the hydraulic system units are fit,theform and replacements assemblies, valves, fittings, adapters, to high levels of contamination rapidly decreasing component longevity. The importance of contamination control is sometimes Vickers® PVB series components. quick disconnects and tubing. SPIR overlooked when performing maintenance due to incorrect practices being used.

TM

TM

THE FLANGELOCK™ TOOL AND CIRCUIT BLANKING CAPS

STAR valves are trusted and proven

products withsystem. a reputation for™quality The FlangeLock™ tool and caps are the ultimate contamination control tools for protecting your hydraulic The FlangeLock allows for the simple sealing of open hydraulic flanges without tools while the caps canand be bolted in place of a flange connection. durability including needle, Easy on, easy off, they offer a leak-proof solution to hydraulic systems and environmental cleanliness. FlangeLock™ tools and caps ball and check valves with working stop the mess.

Metaris – A Hydraulex Brand pressures up to 60,000 psi as well as HITACHI MAKING CONTAMINATION EASY For more information, call us CONTROL at air actuated, relief, double block and ™ Hitachi have packaged FlangeLock tool and caps specifically for Hitachi mining excavators. The Hitachi customised or visit www.hydraulex.com bleed custom kits1-800-422-4279 make sure no matter which component routine maintenance is being performed on,and you non-standard will always have the exact valves as required. number of FlangeLocks™* and caps to help reduce contamination.

800.890.7827 • sales@spirstar.com spirstar.com • spirstarvalves.com

*Note: FlangeLocks™ are not to be used under pressure

Motor Crossover? No Problem!

Stop The Mess!

SAVE FluiDyne Call you local Hitachi Muswellbrook representative or Fluid Power can offer you quick upturn to any downtime • No tools required TIME with our • No expensive thehardware branchneeded on 02 6541 6300 forSAVE more information. full line of hydraulic motors. Our high torque, low speed motors are available in J, H, S, 211, 500, 2000, 4000, 6000 and • No more rags stuffed into hoses MONEY 10,000 series. They are the same form, fit and function as the • No more messy plastic caps SAVE popular brands: Eaton/Charlynn, White, Ross, Parker, TRW and • The

ultimate contamination control tool LABOR Danfoss. FluiDyne’s motors are offered in nickel plating and epoxy • One

hand installation SAVE coating to keep them running strong in severe environments or • Eliminate

hydraulic oil spills & clean up OIL wash down situations. Our motors are 100% performance tested • Quick

installation & ease of usage • Safe

for personnel & environment • Industry

acclaimed

For more information, call 203-861-9400 or email sales@flangelock.com. www.flangelock.com

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

and are ready for immediate shipment. Each motor has 18 month warranty, so if you have any problems, we have a solution. Call, email, chat…we’re ready to help.

586.296.7200 sales@fluidynefp.com www.fluidynefp.com

AUGUST 2020

37

SPECIAL AD SECTION

Introducing—9S Series Investment Cast Swivels The "9S" Series swivels represent one of the most complete range of sizes and configurations available to industry. This series has been redesigned to incorporate a one-piece barrel arrangement, thus eliminating the need for braze joints. These swivels are pressure balanced with operating pressures up to 5,000 psi. All configurations are designed with a 4:1 Safety Factor and include RoHS compliant zinc plating.

Go ahead. Push me.

Ordinary heavy duty not heavy enough?

P.O. Box 6479 • Fort Worth, TX 76115 V. 817/923-1965 • www.hydraulicsinc.com

Heavy-Duty Mill Cylinders for:

Coxreels TDMP Dual Hydraulics Series The Coxreels dual hydraulic reels feature single sided access for both the spring and the swivel. The supply and return lines are conveniently located on the same side of the reel and hook-up to an external fluid path via a removable dual-port hydraulic swivel and are all installed over an easy-to-service spring cartridge motor.

www.coxreels.com

• Induction-Hardened,

Chrome-Plated Rods • Heavy

Wall Tubing • Replaceable

Glands & Retainer Rings • High-Load

Piston Design Think indestructible and call Yates. www.yatesind.com Yates Industries (HQ) 586.778.7680

This design, unique to the industry, allows for service of the main components without removal of the reel when the reel is installed into truck body boxes.

The TDMP is robustly built for capacities up to 50’, with triple axel support, dual arm guides, heavy gauge steel construction, durable polyester powder coat, rolled and ribbed discs, and stainless steel hose guide rollers.

TARGET YOUR CUSTOMERS WITH GEO-FENCING

Reach attendees at industry events via Fluid Power Journal’s geo-fencing program. Through geo-fencing you will be able to tap into a highly targeted audience of potential clients who are actively in the market for your products and services. With geo-fencing we are able to create a virtual geographic boundary around an area by means of GPS or RFID technology. We are then able to serve your digital marketing message to people that enter this virtual fence and have their mobile location services turned on.

Contact your FPJ sales rep for more information.

Yates Cylinders Alabama 256.351.8081 Yates Cylinders Georgia 678.355.2240 Yates Cylinders Ohio 513.217.6777

ADVERTISER INDEX Company............................................................Page...................... Phone.............................................................................................Web AGI - American Grippers Inc.......................................... 24............. 203-459-8345..........www.agi-automation.com/product-category/o-ring-assembly Aignep USA...........................................Inside back, 25, 36............. 615-771-6650...............................................................................www.aignepusa.com CFC Industrial Training................................................... 27..........1-513-874-3225........................................................................ cfcindustrialtraining.com Clippard Instrument Lab Inc......................Back cover, 25............. 877-245-6247...................................................................................www.clippard.com COXREELS................................................................... 7, 38............. 480-820-6396.................................................................................. www.coxreels.com Creative Services............................................................ 11............. 610-923-0380..............................................................................www.idpcreative.com Emerson Automation Solutions/ASCO.................. 12, 21..........1-800-972-2726...........................................................Emerson.com/foodandbeverage Festo Corp..................................................Inside front, 12..........1-800-993-3786................................................................................. www.festo.us/stars Flange Lock................................................................. 9, 37............. 203-861-9400...............................................................................www.flangelock.com Flow Ezy Filters Inc......................................................... 36............ 1-88-237-1165..........................................................................www.flowezyfilters.com Fluidyne Fluid Power................................................ 23, 37............. 586-296-7200 ...............................................................................www.fluidynefp.com Graco High Pressure Equipment Company................. 36............. 814-838-2028..........................................................www.HighPressure.com/T-Series Hydraulex................................................................... 11, 37..........1-800-323-8416................................................................................ www.hydraulex.com Hydraulics International Inc....................................... 5, 12............. 818-407-3400 ............................................................................................hiigroup.com Hydraulics, Inc................................................. 7, 30, 37, 38............. 817-923-1965.......................................................................... www.hydraulicsinc.com Innovative Hydraulics LLC.....................................16 to 17............. 715-803-2600...................................................................... https://innovativehyd.com Inserta Products.......................................................... 5, 24............. 215-643-0192 ....................................................................................www.inserta.com

DISPLAY ADVERTISING Programmatic Division

Lubriplate, Inc.....................................................................3............. 800-733-4755.................................................................................www.lubriplate.com Main Manufacturing Products Inc................................ 12..........1-800-521-7918........................................................................... www.mainmfg.com/fpj MOCAP INC..................................................................... 30............. 800-633-6775 ....................................................................................www.mocap.com Oil-Rite Corp..................................................................... 36............. 920-682-6173....................................................................................... www.oilrite.com Spir Star Inc............................................................... 22, 37..........1-800-890-7827....................................................................................www.spirstar.com Targeted Display Advertising......................................... 38............. 610-923-0380.......................... fluidpowerjournal.com/targeted-display-advertising VEST Inc.......................................................................... 39..........1-248-649-9550................................................................................... www.vestusa.com Yates Industries Inc........................................ 1, 12, 22, 38............. 586-778-7680.................................................................................. www.yatesind.com

38

AUGUST 2020

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

CL ASSIFIEDS

MDTools

HyDraw CAD

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Are you a champion at hydraulic system design, an expert with SolidWorks , Autodesk Inventor and AutoCAD, and looking for a career jump? ®

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VEST, Inc. is an innovation-driven Cloud Software company serving the global Fluid Power industry.

To support its growth in the Circuit Diagram, 3D Geometry, and System Configuration technologies on the Cloud, we seek individuals who are self-driven, motivated, and enterprising.

Experience Have 3-10 years experience in: - Hydraulic circuit design / AutoCAD Electrical - Inventor, SolidWorks, AutoCAD - Manifold Design with or without MDTools - HyDraw CAD or NetSkeme from VEST Education Bachelors Engineering degree preferred

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Responsibilities Product presentation to customers Sales follow-up Participation in software UI design Participation in software functionality design and test Guidance to Development team on Product RoadMap Guidance to customers on Application and deployment of software Training to customers on Features and Usage of Software Work Environment The company is open to remote work.

Some overnight travel when conditions allow.

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INTEGRATED CIRCUIT MANIFOLDS SINCE 1948

Pneumatic Cylinders

Celebrating OVER 70 YEARS in Fluid Power • Expedited deliveries • Three dimensional design

almomanifold.com

Made in the USA Huge Inventory. Ships Same Day! Quality Products.

Interchangeable Design.

877-245-6247

HYDRAULIC FLANGES and COMPONENTS THE “SPECIAL” YOU WANT IS PROBABLY ON OUR SHELVES

• Cartridge Valves in stock • Ductile iron, aluminum, stainless • Assembled & Tested Phone: 989.984.0800 Toll Free: 1.877.ALMO. NOW Fax: 989.984.0830

WANTED SURPLUS

Pumps · Motors · Valves · Servo/Proportional

MAIN Mfg. Products, Inc. 800.521.7918 fax 810.953.1385 www.MAINMFG.com/fpj

IN STOCK FROM 25MM TO 80MM MANY COVERS IN STOCK • Pressure, Flow, Directional • Large Flow 90° Valves

almomanifold.com

• Single DIN blocks • Active Valves • Monitored Poppets

Phone: 989.984.0800 Toll Free: 1.877.ALMO. NOW Fax: 989.984.0830

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

Email, call or fax with a list of your Surplus.

We’ll provide you with a price offer!

1-800-422-4279 | 586-949-4240 Fax: 586-949-5302 | surplus@hydraulex.com

The correct answers to the Test Your Skills on page 6 are 1.a, 2.e.

AUGUST 2020

39

SUBSCRIBE BY MAIL FILL OUT THIS CARD COMPLETELY, DETACH, AND MAIL OR FAX IT TO START YOUR SUBSCRIPTION MAIL TO: PO BOX 2548 • ORLANDO, FL 32802-9830 • FAX: 1-866-207-1450 YOU CAN ALSO SUBSCRIBE ONLINE AT WWW.FLUIDPOWERJOURNAL.COM. 01  YES! Please start/continue my complimentary subscription to the Fluid Power Journal Signature (required)

Title (required)

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02  NO. Not interested. /

/

Please Type or Print Clearly: First Name

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 Check here if you would like to keep your name, address, phone and fax numbers confidential, and not released to third parties The address above is my:  Home Address  Business Address Which edition would you like to receive?  Print  Digital  Both (View a sample of our PAPERLESS digital edition at www.fluidpowerjournal.com) 1. Do you specify, select or influence the purchase of components & systems, on new or existing machinery?

If yes, which technologies? (check all that apply) 05  Hydraulic 06  Pneumatic 07  Vacuum 08  Electronic Controls

03  Yes

04  No.

09  None of These

2. What is your primary job title? (check only one) 10  Administration: Chairman, President, V.P., Secretary, Treasury, General Manager, Owner, Business Manager, Director, etc.

11  Plant Operations: VP of Manufacturing/ Operation/ Production, Plant Management/ Director/ Manager/ Supervisor/ Superintendent/ Foreman/ Safety Director, etc.

12  Engineering: V.P. Eng., Eng., Design Eng., Director of Eng., Staff Specialist, Chief Eng., Senior Eng., Maintenance/Production Eng., etc.

13  Technical: Chief Tech., Fluid Power Tech., etc.

14  Mechanical: Chief Master Mech., Master Mech., Fluid Power Mech., etc.

15  Purchasing: VP/Director of Purch., Procurement Manager, Buyer, Purch., etc.

16  Other: (please specify)_________________________________________________________________________________________________ 3. Number of employees at this location?

A  1-19 B  20-49 C  50-99

D  100-249

E  250-499

F  500-999

4. What is the primary business activity at this location?

In the Fluid Power Industry, Outside the Fluid Power Industry 56  Manufacturer 57  Distributor 58  Education 59  Original Equipment Manufacturer (OEM) 61  Other: (please specify)__________________________________________ 5. Which of the following best describes your market focus?

A  Aerospace A  Marine & Offshore Equipment B  Agricultural Machinery B  Material Handling Equipment C  Automotive C  Mining Machinery D  Civil Engineering D  Packaging Machinery E  Cranes E  Plastic Machinery F  Drills & Drilling Equip.

F  Presses & Foundry G  Flame Cutting/Welding Equip. G  Railroad Machinery H  Food Machinery H  Road Construct/Maint. Equip.

I  Forestry I  Simulators & Test Equipment J  Furnaces J  Snow Vehicles, Ski Lifts K  Gas & Oilfield Machinery K  Steel Plants & Rolling Mills L  Heavy Construction & Equip. L  Truck & Bus Industry M  Military Vehicles M  Textile Machinery N  Construction & Utility Equip.

N  Woodworking Machines O  Machine Tools O  Other (specify)_____________ P  Government Related P  Fluid Power Industry

G  1000+

60  End User of Fluid Power Products

MY COMPANY SHOULD BE ADVERTISING IN OR SUBMIT AN ARTICLE TO THE FLUID POWER JOURNAL. PLEASE CONTACT THIS PERSON: NAME:_ _____________________________________ TITLE:_______________________________________

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Take Control with Cordis E L E C T R O N I C P R E S S U R E R E G U L AT I O N

• Resolution ≤5 mV • Accuracy ±0.25% of full scale • Real-time adjustable PID control • Integrated 0 to 10 VDC, 4-20 mA signal, or 3.3 VDC serial communication

The future of proportional control has arrived— and it’s digital. The Clippard Cordis is a revolutionary microcontroller primed for escape velocity from a proportional control market that has grown stagnant.

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• 0 to 10 VDC feedback pressure monitor • Virtually silent • No integral bleed required • Multiple pressure ranges from vacuum to 150 psig • 2.7 to 65 l/min flow control

Precise, Linear Digital Pressure Control Contact your distributor today to learn more about how the Cordis can provide precise, real-time control for your application, or visit clippard.com to request more information.

877-245-6247 CINCINNATI • BRUSSELS • SHANGHAI