Fluid Power Journal July 2022 by Innovative Designs & Publishing, Inc.

JULY 2022

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SPECIAL SECTION

FACES

OF FLUID POWER

Modernizing Dams and Locks Finding the Right Transducer

New Standards for Hydraulic Filters

IFPS

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IN THIS ISSUE

JULY 2022

VOLUME 29 • ISSUE 7

Features

6 Cover Story Civil Service: Modernizing the Hydraulics in Dams and Locks A key to modernization is integrating a new generation of drive and control systems into moving parts of the infrastructure. 16 No Pressure: Finding the Right Transducer for Your Hydraulic System With many factors to consider, it’s critical to convey possible extreme conditions to a potential supplier.

24 Test Your Skills Applications of Proportional Valves 28 Screen Test: New Standards for Assessing Hydraulic Filters Most operators only care that a filtration product is installed and don’t think too much about how well it protects components.

28 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.

CELEBRATING 60 YEARS

Departments

Notable Words

Figure It Out

NFPA Update

IFPS Update

FACES of Fluid Power

Component Showcase

Product Spotlight

Classifieds

HOW BIG DO YOU WANT IT?

YEARS

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JULY 2022

N OTA B L E WO R D S

'I, fluid power, take thee, electrification ...' By Chauntelle Baughman, President and Cofounder, OneHydraulics

CHANGE. NO ONE likes it. No one wants it. Everyone resists it. But is change always a bad thing? I don’t believe it has to be. Some of mankind’s greatest inventions were born of change that was originally met with great confusion and resistance. Electric light, telephones, television, even today’s electric car – all were originally viewed with fear and suspicion but have ultimately led to a revolution in efficiency, reliability, sustainability, and quality of life. The moral of these stories? In every great change, there lies great opportunity. As long as I have been working in fluid power, there has been a perceived existential threat to the industry posed by the big black box of electrification. What is it? What does it mean for the future of our industry? As a fluid power professional married to an electrical engineer, I believe I may be uniquely positioned to provide some insight. My husband, Mark, came into the fluid power industry not long after I started OneHydraulics. He quickly became a certified fluid power hydraulic specialist and found that, while the terminology differed, fluid power design and electrical design were actually very similar. And since his first design, he has been challenging my more traditional views on electrification and pushing the OneHydraulics team into a cleaner, leaner, more electrically controlled future. That future is not as scary as some may believe it to be. While pure electrification may prove a greater threat to low-force, lower-power density applications, the unmatched power density of hydraulics ensures that fluid power will be a preferred solution for system designers for years to come. For example, low-cost sensors and processing power have already made their way into ever-increasingly sophisticated controls. Soon, further improvements in automation will pave the way for an excavator that can automatically dig a hole based on drawings uploaded into its computer. Taking the sensors and processing power one step further, we can utilize machine learning and data analytics to allow feedback received from a machine’s computer to identify abnormal operating conditions before they become a failure. This allows for far less costly and disruptive planned maintenance instead of an emergency. Certainly, concerns have been raised about the increased complexity of electrohydraulic systems and the difficulty that end users will face when trying to troubleshoot these systems. However, I believe that many of these challenges may also be overcome with technology. Imagine a world where we use computers to identify a failed component. Then, a technician with limited training equipped with augmented reality can walk through the repair of that component while the work instructions, images, and settings are displayed to them in real time. Electrification and fluid power do not have to be mutually exclusive. Much like a marriage between a fluid power nerd and an electrical engineer, the two can harmoniously coexist to create something stronger, more powerful, and more sophisticated together than they ever could on their own. And that’s the type of future that I can’t wait to see.

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JULY 2022

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FIGURE IT OUT

New Problem 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 Founders: Associate Publisher: Editor: Technical Editor: Director of Creative Services: Account Executive: Accounting: Circulation Manager:

Paul and Lisa Prass Bob McKinney Michael Degan Dan Helgerson, CFPAI/AJPP, CFPS, CFPECS, CFPSD, CFPMT, CFPCC - CFPSOS LLC Erica Montes Kristy O'Brien Donna Bachman, Sarah Varano 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

Hydraulic Motor Slows as Accumulator Discharges By Robert Sheaf, CFPAI/AJPP, CFPE, CFPS, CFPECS, CFPMT, CFPMIP, CFPMMH, CFPMIH, CFPMM, CFC Industrial Training

900 PSI A NEW SYSTEM was required to run a hydraulic motor at a constant high speed for a short time in one direction, and then run at a slow speed in reverse to pick up another batch for loading into the system. HIGH The circuit shown with the SPEED ADJ. A and B ports connect in the center position was used to prevent the SET @ motor from drifting and provided 2000 PSI quicker response. The designer used an accumulator circuit since there was idle time between cycles EM to recharge and allow them to use a SET @ much smaller pressure compensated 1800 PSI PUMP STROKE ADJ pump with a stroke limiter for slow FOR SLOW SPEED reverse speed. The pressure to rotate the motor with a load was approximately 950 psi (65.5 bar). A five-gallon accumulator was needed to supply the two gallons of flow required to supplement the pump output to rotate the motor at the constant speed required. The nitrogen precharge was 900 psi (65.5 bar) with the pump compensator set at 1,800 psi (124 bar). Solenoid C was energized only when the motor was reversed. They had problems getting the motor to run forward at a constant high speed. The motor would start turning at the needed speed but continued to decelerate as the accumulator charge gauge dropped off. What could be the problem? SOL. A

SOL. B

SOL. C

SPEED

2020 BOARD OF DIRECTORS President: Denis Poirier Jr., CFPAI/AJPP, CFPHS, CFPIHM, CFPCC Danfoss Power Solutions Immediate Past President: Rocky Phoenix, CFPMMH Open Loop Energy First Vice President: Scott Sardina, PE, CFPAI, CFPHS, CFPECS - Waterclock Engineering Treasurer: Jeff Hodges, CFPAI/AJPP, CFPMHM - Altec Industries Vice President Certification: James O’Halek, CFPAI/AJPP, CFPMIP, CMPMM - The Boeing Company Vice President Marketing: Chauntelle Baughman, CFPHSOneHydraulics Vice President Education: Randy Bobbitt, CFPAI, CFPHS Danfoss Power Solutions Vice President Membership: Garrett Hoisington, CFPAI/AJPP, CFPS, CFPMHM - Open Loop Energy DIRECTORS-AT-LARGE Stephen Blazer, CFPE, CFPS, CFPMHM, CFPIHT, CFPMHT - Altec Industries Steve Bogush, CFPAI/AJPP, CFPHS, CFPIHM - Poclain Hydraulics Cary Boozer, PE, CFPE - Motion Industries Lisa DeBenedetto, CFPS - GS Global Resources Daniel Fernandes, CFPECS, CFPS - Sun Hydraulics Brian Kenoyer, CFPHS - CemenTech Jon Rhodes, CFPAI, CFPS, CFPECS - CFC Industrial Training Mohaned Shahin, CFPS - Parker Hannifin Randy Smith, CFPHS - Northrop Grumman Ethan Stuart, CFPS, CFPECS - Wainbee Limited Brian Wheeler, CFPAI/AJPP, CFPMM, CFPMIP The Boeing Company HONORARY DIRECTORS-AT-LARGE AND EX OFFICIO Donna Pollander, ACA Paul Prass, Fluid Power Journal Liz Rehfus, CFPE, CFPS Robert Sheaf, CFPAI/AJPP - CFC Industrial Training IFPS STAFF Executive Director: Donna Pollander, ACA Technical Director: Thomas Blansett, CFPS, CFPAI Certification Logistics Manager: Kyle Pollander Layout/Graphics Designer: Chalie Clair Assistant Director: Jenna Mort 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.

Solution to the May 2022 problem:

Press Experiences a Shock from Cylinder Retraction Cycle

Most shock experienced on systems is caused by high press oil being quickly discharged to tank. The oil under compression just for the cylinder is approximately 7389 in3. A lot of designers use the compressibility of oil to be .005% to .010% to include piping volume and machine stretch. The valve used had an orifice in the pilot that slows the spool down to keep it from hammering the forged steel end cap and reduce shock when shifting. If you multiply 7389 C.I. by .005 giving approximately 37 in3 with the shifting speed of the spool of .080 millisecond end to end, converting it to gpm results in a discharge rate to tank of approximately 120 gpm. This only lasts roughly 80 to 100 milliseconds. The valve they used as a replacement had the pilot orifice missing. This easily cuts the shifting time in half, equating to a discharge rate of 240 gpm in 40 milliseconds. The return filter also sees this spike, which in time will cause the element to blow off. The valve model number had an extra letter in it that omitted the orifice. The press builder probably added the orifice but forgot to change the name plate.

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. WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

JULY 2022

COVER STORY

L I V I C VICE R E S

S C I L U A KS R D Y H D LOC E H T G N N A I Z I S N M R A E D D IN MO

ior ion Sen t vic, orpora o n ilu oth C M n r ila h Rex dM , an , Bosc s t c s je ct Pro roje arge arge P L f o r, L ctor nee Dire nt Engi , a t p e n Gu lopm rvee n Deve a P By icatio l App

ur current civil infrastructure is the product of decades of investment and management to serve the transportation and supply chain needs of communities and industries. While highways, roads, and bridges constitute a large proportion of infrastructure, other portions incorporate mechanical drive and control systems of substantial size and complexity. Systems such as locks and dams for transportation, movable bridges, dams for hydroelectric power plants, and irrigation and flood control systems constitute the “moving parts” of our civil infrastructure. In the U.S., many of these systems were first engineered and built in the 1950s and 1960s. There is now growing commitment to repairing and modernizing this infrastructure, backed by billions of dollars of federal investment approved in 2021. This investment includes expenditures allocated to these civil engineering “moving parts.” Modernizing these systems will be a cross-discipline challenge of engineering, construction, and project management. A key part of the process will be selecting and integrating a new generation of drive and 6

JULY 2022

control systems that offer the performance, versatility, and smart Industry 4.0 capabilities needed to make this modernization productive and long lasting.

Challenging infrastructure conditions In a 2017 report from the American Society of Civil Engineers, U.S. inland waterways received a D grade. According to the report, 49% of vessels passing through 25,000 miles and 239 locks of U.S. inland waterways experienced delays as a result of poor age-related conditions, as most waterways have well exceeded their 50-year expected life spans. When first constructed, these systems were state of the art, with large cylinders, pumps, piping, valves, and other components designed to move large, heavy structures with the most precise motion possible at the time. They had to be rugged and function partially or fully submerged in extreme outdoor temperatures, operating efficiently for 30 to 50 years with proper maintenance and management. Failure to properly fund maintenance and equipment replacement has contributed to its degradation. However, one of the biggest issues is WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

Locks on the La Yesca Dam in Mexico.

A hydraulic power unit on the Derinar Dam in Turkey.

The Olmsted Locks and Dam on the Ohio River.

that much of this equipment is long past its intended life cycle; systems installed for 50-year life cycles are forced to operate for 70-80 years. This leads to costly make-do repairs and fabricating replacement parts for equipment that is no longer manufactured. There are also environmental impacts. Breakdowns or outdated seals can result in hydraulic fluid leaks into sensitive waters, forcing locks and other equipment to be shut down until repairs can be made, which leads to backups in river traffic. Older locks and gates on irrigation systems and canals lose excess amounts of water. Especially in regions like California with climate change-driven droughts, water conservation has become critical, and modernizing these systems is vital to help manage the impact of climate change. The operating controls for many of these moving systems are also much more mechanical and manually controlled, often requiring more operators than would typically be used in industrial facilities using modern controls. The introduction of PLCs and digital drives, even for the largest moving systems, enables greater automation, increased backup systems, WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

and easier operation with more efficiently sized staffs, especially since many operators who have worked these older systems are rapidly retiring.

New drive and control technologies The goal of modernization should be to bring drive and control systems up to date so that infrastructure operators (and the customers who depend them) benefit from improved performance and reductions in delays for repairs, as well as full compliance with the latest safety and environmental regulations. Switching from older hydraulic systems to smarter, more efficient electrohydraulic technology can provide better performance in a smaller package, while reducing energy costs. Hydraulic technology like large cylinders, pumps, and hydraulic direct drives and power units are now manufactured with greater precision and tolerances than the systems they are replacing. The older hydraulics systems typically operated within pressure ranges from 500 psi to peak rates of 1,000 psi. (Continued on page 8) JULY 2022

A key to modernization is integrating a new generation of drive and control systems into moving parts of the infrastructure.

(Continued from page 7) Current hydraulic components are manufactured to tighter tolerances; 3,000 psi is the typical minimum, with higher pressure levels available, depending on the system. As a result, the hydraulic systems are much more compact while delivering significantly increased performance. A large hydraulic cylinder that needed to be 20 inches in diameter in the past can now be 10 inches, and the 6-inch pipe feeding it can be reduced to 2 inches. This not only saves on space; since the system is more compact, it offers more precise motion control through the duty cycle, offering improved endpoint accuracy that can help make lock and dam operations more efficient and faster and help conserve water. The latest drive technologies feature advances for improved life cycles. These include new, more durable piston-rod coating technology for hydraulic cylinders and the latest materials designed for optimal tribology with the goal of reducing wear and therefore maximizing lifetime. The newest generation of hydraulic PLCs and smart drives gives infrastructure operators greater control and flexibility than existing controls platforms, some of which are decades out of date. They offer much more automation and remote-control capabilities, which is critical for installations that can spread out for acres. As with other Industry 4.0 technologies, increased use of sensors, integrated with a new generation of electrohydraulic controls, supports advanced condition monitoring of all the drive and control equipment and enables predictive maintenance programs that identify potential problems early. This ensures that critical equipment shutdown and maintenance can be planned, and necessary repairs conducted well in advance, before serious damage and huge expense occurs. The new technologies also give infrastructure operators greater freedom to staff repair and maintenance teams on a regional basis, rather than placing personnel at every location, since the modernized technology operates with much greater reliability. Predictive maintenance programs make scheduling work crews more efficient. 8

JULY 2022

Systems engineering single-source approach Selecting the new drive and control systems for a 70-year-old lock and dam system can be time consuming, particularly if it involves multiple suppliers. There are advantages to working with one provider who can supply all the latest hydraulics technology and digital controls, as well as support the integration of the complete solution. For example, Bosch Rexroth provided a full suite of hydraulic drives and controls as well as complete integration services for constructing the Olmsted Locks on the Ohio River near Paducah, Kentucky, 10 miles upstream from the confluence of the Ohio and Mississippi Rivers. For a five-year period, Bosch Rexroth was fully involved in providing hydraulic drives and controls for the five gates on the lock. The complete solution encompassed six hydraulic power units, ten Tainter-gate cylinders, multiple custom manifolds and control systems for the hydraulics, and the field piping. The company was also responsible for startup and commissioning, engineering and installing the piping, sensors, and wiring to make the gate drives fully operational, as well as training on the new systems. This approach helped simplify the project for the Olmsted Locks general contractor, who was mainly responsible for the more massive concrete and steel construction of the project. Also, since Bosch Rexroth possessed in-depth expertise from similar projects in Europe and the Panama Canal, the Olmsted Locks team drew on their experience to keep the project on track. With society’s renewed commitment to infrastructure modernization, the latest generation of drive and controls systems can be realized. The right technology, carefully selected to meet the unique demands of each installation, can help protect the environment, conserve water, reduce transportation delays, and ultimately provide a renewed and more productive transportation system.

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N F PA U P D AT E

Shipments Down in April, Growth Slowing After March’s record highs in shipments and orders of fluid power products, the latest data from the National Fluid Power Association shows decreases of pneumatic, mobile hydraulic, and industrial hydraulic shipments in April when compared to March. The 12-month moving average of shipments for pneumatic, hydraulic, and total fluid power continues to grow, but their growth rate appears to be slowing. The year-to-date percent change for total fluid power shipments in April was 13.6%. The charts below were drawn from NFPA’s Confidential Shipment Statistics (CSS) program.

Hydraulic and Pneumatic Shipments

SHIPMENTS

Raw Index Data, Index: 2018=100

MONTH

TOTAL FLUID POWER

TOTAL HYD.

TOTAL PNEU.

Feb. 2022

18.1

19.9

7.4

Mar. 2022

15.0

15.8

9.3

Apr. 2022*

13.6

15.5

7.5

*Preliminary data subject to revision.

Shipments – Cumulative year‐to‐ date % change (2022 vs. 2021)

This graph of raw index data is generated by the total dollar volume reported to NFPA by CSS participants and compared to the average monthly dollar volume in 2018. For example, the April 2022 total dollar volume for pneumatic shipments is 103.3% of the average monthly dollar volume in 2018. (Base Year 2018 = 100)

The table above is expressed in terms of cumulative percent changes. These changes refer to the percent difference between the relevant cumulative total for 2022 and the total for the same months in 2021. For example, April 2022 pneumatic shipments figure of 7.5 means that for the calendar year through April 2022, pneumatic shipments increased 7.5% compared to the same time-period in 2021.

Pneumatic, Mobile and Industrial Hydraulic Orders 12/12 Ratio Each point on this graph represents the most recent 12 months of orders compared to the previous 12 months of orders. Each point can be read as a percentage. For example, 138.5 (the April 2022 level of the industrial hydraulic series) indicates that industrial hydraulic orders received from May 2021 to April 2022 were 138.5% of the orders received from May 2020 to April 2021. (Base Year 2018 = 100)

Total ‐ Hydraulic and Pneumatic Shipments 12 Month Moving Average

This graph of 12-month moving averages shows that in April 2022, the moving averages for shipments continued to increase across the board but are approaching a plateau. (Base Year 2018 = 100)

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JULY 2022

I F P S U P D AT E

Certification Success Story: Bradley Wagner

Certification Empowers Opportunity.

WHILE STUDYING AGRICULTURAL and biological engineering at Penn State University, Bradley J. Wagner minored in youth and family education. Later on, he was able to tie that part of his education into his career when he earned a fluid power certification as an accredited instructor. “I saw this was kind of a good fit because it tied the engineering and hydraulics and teaching all together,” Wagner said in a phone interview with Fluid Power Journal. Wagner, a staff test engineer at Manitowoc Cranes in its Shady Grove, Pennsylvania, facility, holds seven certifications, including two as an instructor: Certified Fluid Power Hydraulic Specialist (CFPHSHS); Industrial Hydraulic Mechanic (CFPHS); Mobile Hydraulic Technician (CFPMHT); Connector & Conductor (CFPCC); Master of Mobile Hydraulics (CFPMMH); Accredited Instructor Authorized Job Performance Proctor (CFPAIAJPP); and Proctor Connector & Conductor (CFPAIAJPPCC). “As far as earning the credited instructor certifications,” he said, “that was a personal desire because from a test standpoint I was working with a lot of my coworkers trying to help provide guidance since I’ve been involved in it for so many years. And I enjoy the teaching aspect of it.” It was while he was in college that Wagner recognized the value of certification “to gain credibility in the understanding of hydraulics.” But later on, encouraged and supported by his employers, he added certifications that matched the work he was doing. “The rest of the certifications came into play with what I was doing from the product test and verification side, which is basically what I’m doing day to day in my career. I saw that the certifications fit well.” He said the certifications have helped his career in two ways. “One [way] is credibility, because employers and the industry as a whole see that IFPS certification has value and meaning. The other thing is self-encouragement, where you just realize it gives you self-confidence and you can apply that in your career or your job.” While working toward the certifications, Bradley said he was surprised to realize how much he didn’t know about his field. “Even with years of experience, you think you’ve learned a lot, then you go through certification, and there’s always something new to learn.” He finds a comradery among peers who’ve also achieved the knowledge he’s acquired through certification. It helps him relate better to colleagues, he said. “The other thing is being able to relate to others who are also certified. It’s a small niche community, and you can use certification as sort of an ice breaker when you meet new people.” Bradley always advises colleagues about the benefits of certification. “I would encourage them to take the challenge. All the certifications are challenging, and I would say take advantage of the material and the content that IFPS has put together and further educate yourself. Even for people who take the test and maybe don’t pass, don’t be discouraged, because they are challenging.”

JULY 2022

One important benefit Wagner sees to certification is the emphasis on safety. “Because hydraulics can be dangerous, especially with the size of some machines that are being powered hydraulically, having that additional awareness on the safety aspect is a benefit. If you’re in a hands-on environment, you’re able to fully understand the systems and truly apply the knowledge.” Wagner said he has seen his coworkers grow in knowledge of hydraulics, especially in his role as an instructor. “It’s interesting to see individuals with first-time exposure to IFPS certification, you can see people grow and become more confident, and apply that knowledge in their daily work. I think that’s kind of a neat aspect from an instructor’s standpoint.” Unfortunately, though, the hands-on professionals are sometimes unaware of certification and its benefits, he said. “The individuals who are in the field, who are servicing the machines or working on equipment, I'd encourage them to check out the training and certification resources IFPS has to offer.”

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I F P S U P D AT E

IFPS Releases New IHM Study Manual -

IFPS HAS UPGRADED the study manual for the industrial hydraulic mechanic certification, and it is now available for test preparation. Anyone taking the IHM certification test after Sept. 1 will need the new manual, which is free for IFPS members. Here are some of the new manual’s upgrades: • The manual contains both the written and job performance portions. • Full-color photos and graphics that are also available to download • Principles of operation for common components in industrial hydraulic systems • Color-coded cutaway illustrations of hydraulic components • Symbology updated to conform to ISO 1219 standard • Expanded content on troubleshooting includes decision-tree aids • Detailed content on pressure, flow, and directional control valves • Improved graphics and real-life photos to assist in visualization • Basic hydraulic calculations useful in troubleshooting • Safety tips • Basic principles of open loop and closed loop electrohydraulic control • Electrohydraulic valves • Sensors used in electrohydraulic systems

For more information, email kpollander@ifps.org or visit www.ifps.org.

Cer tification

Empowers Opp

ortunity.

Industrial Hy Cer tification draulic Mechanic St u d y M a n u a l • Critical ma terial to study for the Certifi • Review que cation test stions at end • Test your of each cha pte knowledge wit h pre-test que r stions

NEW!

05/05/2

Certification

Empowers O

pportunity.

P.O. Bo P 800-308-60 x 1420, Cherry Hill, NJ 08034 05 • E ask us@ifps.org • www.ifps.or g

Mark Your Calendar 2022 ANNUAL MEETING AND HALL OF FAME AWARDS CEREMONY Sept. 26-29, San Diego, CA FLUID POWER TECHNOLOGY CONFERENCE Oct. 12-13, Detroit, MI 2023 SPRING MEETING Feb. 27-March 2, 2023, New Orleans, LA 2023 ANNUAL MEETING AND HALL OF FAME AWARDS CEREMONY Sept. 25-28, 2023, Milwaukee, WI INTERNATIONAL FLUID POWER EXPOSITION March 14-18, 2023, Las Vegas, NV 2024 SPRING MEETING March 11-14, 2024, San Antonio, TX

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JULY 2022

I F P S U P D AT E

Upcoming Webinars

Certification Empowers Opportunity.

SOLENOID OPERATED CARTRIDGE VALVES: SWITCHING AND PROPORTIONAL CONTROL Dan Fernandes, CFPHS, CFPECS, of Sun Hydraulics, presents an interactive training session on electrohydraulic cartridge valve functions, solenoid coil properties, and proportional valve controls. When: July 14 webinar at 12 noon Eastern time. FLUID POWER MATH LIVE STREAM SERIES Dan Helgerson, CFPAI, conducts this seven-week series covering fundamental math skills and laying a foundation to calculate more complex formulas. When: Wednesdays, Oct. 5 through Nov. 16, 11 a.m. to 12:15 p.m. Eastern time. Cost: $149 for members and $299 for nonmembers. The fee includes a calculator, the Fluid Power Math book, and two-year access to the IFPS learning management system. FLUID POWER FUNDAMENTALS Coming this fall. This eight-week virtual training is offered in association with Waukesha County Regional College. Who should attend? Customer service representatives, engineers interested in fluid power, maintenance technicians, and interested associates. Cost: $299 for members and $399 for nonmembers. The fee includes the eight-week virtual sessions and a workbook. When: Dates, times, and further details are TBA.

Upcoming Workshops

IFPS WILL HOLD A WORKSHOP for accredited instructor (AI) and authorized job performance proctor (AJPP) certifications. The workshop will be held Aug. 23-25 in Denver, Colorado. The AI workshop is a one or two-day workshop to acquaint participants with the IFPS certification program and assess their instructional abilities. The program measures rather than teaches instructor skills. IFPS AIs have extensive backgrounds and instructional experience in the fluid power industry. In addition to their instructor accreditation, they are committed IFPS members and hold various certifications. IFPS AJPPs are certified to proctor mechanic, technician, and connector and conductor job performance hands-on tests. Individuals must hold the certification they plan to proctor and must be an IFPS member. The deadline to register is Aug. 9. For more information and to register, visit www.ifps.org/ certified-accredited-instructor or call (856) 424-8998.

JULY 2022

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I F P S U P D AT E

Newly Certified Professionals April 2022 SPECIALIST

holds HS and PS Certifications Zeke Brallier, Loram Maintenance of Way Trent Jensen, Loram Maintenance of Way Aaron Jankins, Loram Maintenance of Way Aaron Abele, Parker Hannifin Corporation Matt Brightman, Parker Hannifin Corporation Zach Hickey, Parker Hannifin Corporation Grant Noll, Parker Hannifin Corporation Nathaniel Hook, student Jake Naumann, student Adam Rakow, student CONNECTOR & CONDUCTOR

Gerried Brizendine, Controlled Fluids Kendra Bryant, Controlled Fluids Laurie Culbertson, Controlled Fluids Carrie Bustamante, Devine Hydraulics Wade Bennett, The Boeing Company Jared Mitchell, The Boeing Company Joshua Trout, The Boeing Company

IFPS Annual Meeting Set for September

IFPS’s ANNUAL MEETING takes place Sept. 26-29 at the Embassy Suites Downtown in San Diego. Events kick off with a Sept. 26 technical workshop titled Electrohydraulic Control Systems. Tom Blansett, CFPAI, IFPS technical director, and Denis Poirier, CFPAI, training operations manager, Danfoss Power Solutions, present a review of proportional valve concepts, a discussion on basic amplifier principles and tuning strategies, and conclude with a deep dive into how to properly size proportional valves for optimum performance. The session includes team discussions, the interpretation of performance data, and exercises in valve sizing. The workshop starts at 8 a.m. and the cost is $150. IFPS also hosts the Fluid Power Hall of Fame awards ceremony Sept. 28, when two inductees, including one posthumous, will be honored for significant contributions to the fluid power industry.

ELECTRONIC CONTROLS

Christian Berg, Cascade Corporation HYDRAULIC SPECIALIST

Seth Davis Andrew Patience

Mike Chamberlain, Dominion Energy Matt Comer, Dominion Energy Jonathan Gross, Dominion Energy Brad Lane, Dominion Energy Eric Robichaux, Dominion Energy Andrew Sullivan, Dominion Energy Cliff Wallace, Dominion Energy

MOBILE HYDRAULIC MECHANIC

Carter Hudson Michael Veitenheimer, Altec Industries Sam Wolf, Altec Industries Robert Brady, Altec Industries Nicholas Carella, Altec Industries Jason Hale, Altec Industries Roberta Hart, Altec Industries Jordan Hayes, Altec Industries Jessie Hornback, Altec Industries Robert Jones, Altec Industries Colton Maxwell, Altec Industries Derek Salmi, Altec Industries Josh Scudder, Altec Industries Paul Turner, Altec Industries Darren Slowik, City Utility Equipment Sales Leasing

PNEUMATIC SPECIALIST

Zeke Brallier, Loram Maintenance of Way Trent Jensen, Loram Maintenance of Way Aaron Jankins, Loram Maintenance of Way Aaron Abele, Parker Hannifin Corporation Matt Brightman, Parker Hannifin Corporation Zach Hickey, Parker Hannifin Corporation Logan Mills, Parker Hannifin Corporation Grant Noll, Parker Hannifin Corporation Jacob Scohy, Parker Hannifin Corporation Nathaniel Hook, student Jake Naumann, student Adam Rakow, student

SCHEDULE OF EVENTS All times are PDT

Monday, Sept. 26 8:00 AM - 2:30 PM.....................................................Technical Workshop............................. Topeka 3:00 PM - 5:00 PM........................................................... AI Presentations ........................Atchinson 6:30 PM - 8:30 PM............................................ Edgewater Grill (optional).......Meet in lobby at 6:30 Tuesday, Sept. 27 8:00 AM - 9:00 AM.....................Strategic Planning Committee Meeting .........Monterey Ballroom 9:00 AM - 11:00 AM.................................Education Committee Meeting..........Monterey Ballroom 11:00 AM - 12:00 PM.......................... Membership Committee Meeting .........Monterey Ballroom 12:00 PM - 12:30 PM.......................................................... Hosted Lunch.............................. Atrium 12:30 PM -1:30 PM.....................Membership Committee Meeting cont..........Monterey Ballroom 2:15 PM - 5:15 PM................................................ San Diego Bay Tour ($).......Meet in lobby at 2:15 7:00 PM - 9:00 PM..................................................... Welcome Reception ...............Veranda Atrium 9:00 PM - 10:30 PM..The Smoking Gun - Cocktails & Tappas (optional).......Meet in lobby at 9:15 Wednesday, Sept. 28 8:00 AM - 12:00 PM............................. Certification Committee Meeting .........Monterey Ballroom 12:00 PM - 1:30 PM........................................................................................... Lunch (on your own) 1:30 PM - 4:30 PM.................................USS Midway Museum (optional).......Meet in lobby at 1:30 6:00 PM - 9:30 PM............................ Annual Dinner & Awards Ceremony............................. Topeka Thursday, Sept. 29 8:00 AM - 10:00 AM.................................Marketing Committee Meeting..........Monterey Ballroom 10:00 AM - 11:30 AM.................................. Finance Committee Meeting..........Monterey Ballroom 11:30 AM - 12:15 PM.......................................................... Hosted Lunch.............................. Atrium 12:15 PM - 1:15 PM.......................................Board of Directors Meeting..........Monterey Ballroom 1:15 PM - 2:15 PM.... Strategic Planning Committee Meeting Follow Up..........Monterey Ballroom

To register, visit www.ifps.org. WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

JULY 2022

I F P S U P D AT E

Written Certification Test Locations Individuals wishing to take any IFPS written certification tests can select from convenient locations across the United States and Canada. IFPS is able to offer these locations through its affiliation with the Consortium of College Testing Centers provided by National College Testing Association. Contact headquarters if you do not see a location near you. Every effort will be made to accommodate your needs. If your test was postponed due to the pandemic, please contact headquarters so that we may reschedule.

TENTATIVE TESTING DATES FOR ALL LOCATIONS: August 2022 Monday 8/8 • Thursday 8/25 September 2022 Tuesday 9/13 • Thursday 9/29 October 2022 Tuesday 10/11 • Thursday 10/27 November 2022 Tuesday 11/8 • Thursday 11/17

JOB PERFORMANCE TEST LOCATIONS Arizona Nova Scotia Pennsylvania California Texas Colorado Washington Florida Georgia Wyoming Maine Western Michigan Australia Minnesota Montana New Jersey

JULY 2022

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

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

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

Certification Empowers Opportunity.

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

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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

Tentative Certification Review Training IFPS offers onsite review training for small groups of at least 10 persons. An IFPS accredited instructor visits your company to conduct the review. Contact kpollander@ifps.org for details of the scheduled onsite reviews listed below. HYDRAULIC SPECIALIST Aug. 23-26, Charlotte, NC. Contact mzanon@hydeparkpartners.us Livingston & Haven. Written test: Aug. 26. Aug. 29-Sept. 1, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written test Sept. 1. Oct. 25-28, Charlotte, NC. Contact mzanon@hydeparkpartners.us Livingston & Haven. Written test: Oct. 28. ELECTRONIC CONTROLS SPECIALIST Aug. 8-11, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written test: Aug. 11. CONNECTOR & CONDUCTOR Nov. 15-16, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written test Nov. 17. MOBILE HYDRAULIC MECHANIC Oct. 10-12, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written and JP test Oct. 13. Online review for written test. Contact info@cfcindustrialtraining.com. IFPS members can email askus@IFPS.org for a 20% off coupon code. Test fees not included. INDUSTRIAL HYDRAULIC MECHANIC July 18-20, Fairfield, OH. Contact info@cfcindustrialtraining.com. Written and JP test July 21. INDUSTRIAL HYDRAULIC TECHNICIAN Onsite review training for small groups. Contact IFPS for details.

CFPMM Certified Fluid Power Master Mechanic (Must Obtain CFPIHM, CFPMHM, & CFPPM)

MOBILE HYDRAULIC TECHNICIAN For dates, call 513-874-3225 or contact info@cfcindustrialtraining.com.

CFPIHM Certified Fluid Power Industrial Hydraulic Mechanic

PNEUMATIC TECHNICIAN and PNEUMATIC MECHANIC For dates, call 513-874-3225 or contact info@cfcindustrialtraining.com.

CFPMHM Certified Fluid Power Mobile Hydraulic Mechanic CFPPM Certified Fluid Power Pneumatic Mechanic

JOB PERFORMANCE TRAINING Online review. Contact info@cfcindustrialtraining.com. Reviews includes stations 1-6 of the IFPS mechanic and technician job performance tests. Members can email askus@IFPS.org for a 20% coupon code. Test fees not included. To register, contact info@cfcindustrialtraining.com.

CFPMIH Certified Fluid Power Master of Industrial Hydraulics (Must Obtain CFPIHM, CFPIHT, & CFPCC)

LIVE DISTANCE LEARNING JOB PERFORMANCE STATION REVIEW Contact info@cfcindustrialtraining.com for information.

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

WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

JULY 2022

Finding the Right Transducer for Your Hydraulic System By Bob Atwood, Vice President and Chief Operating Officer, GP:50 16

JULY 2022

WWW.FLUIDPOWERJOURNAL.COM • WWW.IFPS.ORG

any hydraulic or pneumatic systems require continual feedback of system pressure to ensure the system operates well and within its parameters. Many systems require the pressure sensor to either collect data, control the process, or provide critical feedback for safety reasons. Depending on the type of system and requirements, special options, features, or design criteria may be required from the pressure transducer manufacturer. Some critical systems require that the pressure transducer go through special testing or verification at the time it is built to provide a highly reliable unit. Some require custom-built designs specific to the application, while some only require an off-the-shelf general-purpose unit to provide basic feedback in the system. While pressure transducers are designed to measure pressure and provide an output signal, they are not all constructed the same. With many application factors to consider, it’s critical to convey potential extreme conditions when selecting a pressure transducer. Here are some areas to consider. Pressure pulsation. Pressure spikes are common in hydraulic applications. Spikes can occur when an inline valve opens and closes rapidly, or when a pump turns on and off and sends a high-pressure pulse that can exceed the sensor’s upper limit, damaging the sensor. Some of these pulses are so rapid they exceed the frequency response of the sensor’s electronics and are not visible in the output signal. But they can mechanically damage the sensing diaphragm. It’s not uncommon in some hydraulic systems to see pressure spikes two to three times beyond the system’s typical operating range. Due to the compressibility of a gas, pressure spike issues in pneumatic systems are less likely. It is important to know if this is a potential issue for your system when specifying a transducer. Special pressure snubbers that mechanically dampen the pulsations are available as well as options to increase the proof pressure, which will help improve longevity. Even installation techniques like mounting the transducer at the end of a length of high-pressure rubber hose can dampen high-pressure pulsations. Amplitude and frequency levels. Pressure transducers have an active sensing element that deflects under pressure and provides an electrical signal in ratio to the applied pressure. This mechanical portion of the sensor has a cycle life expectancy. While most sensors are rated to many millions of cycles, the amplitude of the pressure and the frequency rate can influence life expectancy. Regarding amplitude, if the application repeatedly cycles the sensor from zero pressure to maximum full-scale pressure, this has a greater effect on its life expectancy than if the sensor was WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

held at an elevated pressure or only cycled to a smaller percentage of the full range. If the pressure delta between the low and high pressure is small, you can typically expect longer service life and may only require a standard off-the-shelf product. Pressure frequency also affects the life expectancy. For example, if the unit cycled 100 times an hour versus 1,000 times a minute, it could have a significant impact on the unit’s life. Combined high-amplitude and high-frequency pressure cycles affect the unit’s life. Presenting these characteristics to the transducer supplier helps them provide the best product for the application. In severe high-amplitude, high-frequency applications there are options to provide more rugged sensors with better longevity. Shock and vibration levels. Shock and vibration levels can also have a severe effect on the longevity of a pressure transducer. Where and how the transducer is mounted in the system can improve these potential issues. Vibration from mechanical pumps can produce frequencies that damage a transducer's electronics. Isolating or moving the transducer away from the pump can reduce harmful frequencies. Considering this potential issue before purchasing a sensor can be the difference between a unit lasting a few months or many years. Some companies offer transducers that provide additional internal strain relief techniques for applications where it is not possible to isolate the transducer from the pump or where high shock and vibration are present. Adding additional epoxy or strain relief to specific internal components helps eliminate breakage in these severe events. Some companies even offer more robust sensor designs as an option. While some of these options may increase the unit’s cost, the payback comes in longer life and less downtime. Providing potential shock and vibration-level information when specifying a unit helps provide the best options for your application. Chemical compatibility. Some fluids used in hydraulic applications may present compatibility issues with commonly used sensor materials. Even slight material incompatibilities can cause instability or drift issues over a short period of time. Some chemicals may etch a sensor’s active diaphragm and cause an increase in output or constant drift. While most sensors are made from either 316 SST or 17-4 PH SST, there are other options available. Metals such as Inconel, Hastelloy, Monel, or titanium may provide better compatibility. Defining the media to which the transducer will be exposed when selecting a (Continued on page 18) JULY 2022

(Continued from page 17) device helps improve the overall life, provides for a more accurate pressure measurement, and eliminates the chance of any catastrophic failures. Temperature. Extremely high or low process or ambient temperatures can cause poor readings or even premature failures. Providing a supplier with minimum and maximum operating temperatures allows the manufacturer to customize a sensor to function more accurately over the operating range of the application.

WORK READY SERVO AND PROP. VALVES

Higher temperatures may cause the transducer sensor or electronics to fail. While many sensors are rated 250°F to 350°F (121°C to 175°C), the internal electronics many only be rated to no more than 250°F (121°C). Exceeding this operating temperature can result in drift, inaccurate readings, and cause the unit to fail. In cryogenic applications, there are sensors rated to -320°F (-196°C), but most signal conditioners operate down to -65°F (-54°C). In both high-temperature

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and cryogenic applications, some suppliers offer a signal conditioner that is mounted remotely, away from the sensor and process temperature. As long as the ambient temperatures do not exceed the electronics operating temperature range and the process temperature is within the sensor’s operating range, a signal conditioner provides an accurate and reliable pressure measurement with an amplified output. It is always important to ask the factory which model is rated best for extreme temperature applications. Environmental conditions. Hydraulic systems are often not the cleanest of environments. Oil, water, or other chemicals can splash or wash over the system’s transducer. These wet conditions may penetrate the transducer housing and cause complete failure. If a transducer is exposed to high moisture, including washdown conditions, a completely hermetically sealed design may be needed. However, many low-pressure-range transducers (typically less than 1,000 psi) require an atmospheric reference port to account for barometric changes or altitude. This reference port provides a stable and accurate pressure measurement regardless of the atmospheric pressure or altitude. If a lower range application has the potential to get the transducer wet from external fluid exposure, a vented electrical cable option can prevent water intrusion and still provide a barometric reference. For applications in mild washdown, splashing, or rain exposure, some companies provide a hydrophobic vent in the transducer body, which allows the unit to breathe but keeps moisture out. To help provide the right configuration, knowing the system’s environmental conditions is critical when specifying a product. Electrical issues. For applications with highpower, high-voltage motors running close by, EMI or RFI immunity is critical to provide a clean usable signal. If there are potential or known electrical noise issues, many transducer manufactures offer extra filtering or protection from this extraneous noise. The internal filtering cancels out these external noises and helps provide a much cleaner signal. In outdoor applications where the threat of lightning is present, high-voltage surge suppression may also be needed. Some companies also offer internal surge suppression as well as optional external in-line surge suppression that helps alleviate failures due to a lightning strike. There are many factors that can affect a transducer’s life expectancy. Providing all the information about your application at the time of selection results in a more reliable and accurate device and reduces the chance of a failure. Conveying these specifications when selecting a product increases the likelihood of a reliable and accurate device.

•

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Allegheny York is primarily a distributor and manufacturer of high quality hydraulic and pneumatic seals and wear components. With their compression and injection molding capabilities they also manufacture custom rubber and plastic parts, which differentiates them from the competition. Low cost tooling made in-house provides an advantage on high and low volume production runs. Founded in 1972, Allegheny York was acquired by employees Aaron and Elisha Weir in 2019. Aaron earned a Mechanical Engineering degree from Penn State University and has been the lead engineer with the company since 2015. He is also an Army Veteran. Elisha has a background in Sales and Marketing and has been a top performer since 2017. Together, the husband-and-wife team continue to grow the company, especially focusing on the manufacturing division to allow more parts to be manufactured in America. Quality products, great customer service, and competitive pricing make Allegheny York an industry leader. AY strives to be the go-to for all of your sealing solutions. We have the best team in the business to give you the exceptional experience you deserve. If we’re not your #1 seal supplier, give us a shot and we will be! 717-266-6617 | Sales@AlleghenyYork.com www.AlleghenyYork.com

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THE FACE OF

SEALS & PACKING ALLEGHENY YORK JULY 2022

THE FACE OF

HYDRAULIC PUMPS FLUIDYNE FLUID POWER

Our promise at FluiDyne Fluid Power is to provide our industry with high quality, fully tested and technically supported hydraulic pumps, motors and valves. We are known for our outstanding customer service and responsiveness. With our large scale inventory, and streamlined shop, most of our products ship within one day. FluiDyne is an ISO 9001:2015 company and has 30+ year history of supply and service to distributors, repair shops, resellers and OEM’s using hydraulic components. FluiDyne can offer you quick upturn to any downtime with our full line of hydraulic piston, vane and gear pumps. Our pumps are available in: A10V/A4V, PVB/PVE/PVH/ PVQ, VTM42, V200 Series, Veljan T6/T7/ T67/TXB, V10/V20/V2010/V2020, VHO/VQ, PSV, C101/C102 and aluminum gear pumps. They are the same form, fit and function as the popular manufacturers. Our pumps are 100% tested to meet OEM specifications. We put our customers’ needs first, no matter what the request is. Our customer being satisfied is our top priority. Call, email, chat…we’re ready to help. (586) 296-7200 | Sales@FluiDyneFP.com www.FluiDyneFP.com

JULY 2022

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JULY 2022

TARGETED DISPLAY ADVERTISING (PROGRAMMATIC) Digital ads that will help you reach your customers and also increase your audience reach on desktops, laptops, tablets and smartphones.

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COMPONENT SHOWCASE CLIPPARD PTFE OR PEEK MEDIA ISOLATION & MEDICAL GRADE PINCH VALVES Ideal for use with sensitive or corrosive media, this line is an excellent alternative to traditional mechanical valves when media contamination is a concern, as they interact with medical grade tubing, PTFE or PEEK, and never touch the material being dispensed! The NIV solenoid-operated isolation valves utilize a flexible diaphragm to isolate the actuation mechanism from the fluid path. These valves are commonly used for a wide variety of applications including those that require precise, repeatable dispensing of media. Electronic and pneumatic pinch valves are designed to open and close tubes for controlling flow of liquids and gases. Other valve types have internal passages that may cause small amounts of fluid to remain in the valve. Pinch valves have no areas where fluid can become trapped. Medical and food grade tubing included. Clippard manufactures a full range of miniature fluid control devices and components including pressure controls, electronic valves, analytical and oxygen clean valves, proportional and proportional isolation valves, pinch and isolation valves, precision regulators, fittings, tubing and more. Clippard continues to be an industry leader in providing innovative products, application engineering and cost-saving solutions for a wide range of applications. Proudly made in the USA.

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WANDFLUH ELECTRO-HYDRAULIC VALVES PROPORTIONAL DIRECTIONAL SOLUTIONS

NG6 Direct operated 2P/4W or 3P/4W

NG6 and NG10 high flow, high efficiency surface mounted products along with Screwin-Cartridge (SIC) in UNF sizes 08 and 10 are backbone products for many of our customers. These industry standard drop in, direct replacements bring improved operation, performance, and characteristics to the application. The NG6 valves are all direct operated while the NG10 can be ordered as direct, or pilot operated for even higher flows requirements. All of these valves have very low pressure drop, very linear flow curves and are available as 2P/4W or 3P/4W operation with a range of standard spool functions. The NG10 direct operated products can be used with any of the Wandfluh amplifiers or controllers. The NG10 pilot operated version can be ordered under one number with on-board-electronics (OBE) and/or with optional filter slice to protect the pilot stage, preassembled and pre-configured for easy application. The SIC’s fit a standard UNF cavity and have a Push-Pull solenoid arrangement to give the 3P/4W operation. These cartridges have exceptionally linear flow curves, extremely low hysteresis and are highly repeatable valve to valve for confident series production use with minimal adjustment needed. All Wandfluh product are designed, manufactured, built, and 100% tested in Switzerland before shipping ready to use to our global customers. Contact sales@wandfluh-us.com or call is at +1 847-566-5700 for more information WWW.IFPS.ORG • WWW.FLUIDPOWERJOURNAL.COM

NG10 Pilot operated 2P/4W or 3P/4W

NG10 Direct operated 2P/4W or 3P/4W

SIC - UNF 08 Direct operated 3P/4W

SIC - UNF 10 Direct operated 3P/4W

JULY 2022

TEST YOUR SKILLS

Applications of Proportional Valves T

here are many applications for proportional solenoids in the control of hydraulic pressure and flow in both mobile and industrial applications. The terms pressure differential and pressure drop indicate the same entity – a difference in pressure – and are often used interchangeably. In this discussion on proportional valves, we'll use the term pressure differential. Proportional valves are typically catalog rated for a nominal flow at a 5 bar (72.5 psi) pressure differential per flow path for a total 10 bar (145 psid), and a total loop differential across the valve equal to system pressure minus load and return line pressure or ΔpV = pS - pL - pT. In reality, however, very few systems have such an exact pressure differential. Therefore, it is necessary to determine the size of valve, based on the requirements of the system that it will be controlling. To maximize the performance characteristics of a proportional valve, a more thorough examination must be conducted of not only the required actuator flow but also of the available pressure to drive flow through the valve. In most applications using industrial type proportional valves, flow is simultaneously metered in and out of the actuator (much like a pair of interconnected flow controls with sharp-edged orifices) in some proportion to the magnitude of the electric input signal, to provide precise control. And for a sharp-edged orifice of a given size, a mathematical relationship exists between the flow rate through and the pressure differential across the orifice such that: Flow is proportional to the square root of the pressure differential and is expressed as:

Q :: Δp

Meaning, that if the pressure differential is increased by a factor of 4, the flow will double. For example, with a given size valve: If QRATED = 10 lpm at ΔpRATED = 10 bar, what is QACTUAL if ΔpACTUAL = 40 bar?

QACTUAL =

ΔpACTUAL ΔpRATED

• Qrated =

40 •10 = 20 lpm 10

Where: ΔpACTUAL is the actual (or required) pressure differential across the valve ΔpRATED is the catalog rated pressure differential across the valve QACTUAL is the actual (or required) flow passing through the valve QRATED is the catalog rated flow through the valve at a given pressure differential Conversely, pressure differential is proportional to the square of the flow and is expressed as: Δp::Q2 Meaning that, if the flow is reduced by half, the pressure differential is reduced to 1/4. For example, with a given size valve: If ΔpACTUAL = 40 bar and QACTUAL = 20 lpm, what must ΔpRATED be if QRATED = 10 lpm? 2

ΔpRATED

2 ⎛Q ⎞ ⎛ 10 ⎞ RATED ⎟ • Δp = ⎜⎜ = ⎜⎜ ⎟⎟ 40 = 10 bar ACTUAL ⎟ Q ⎝ 20 ⎠ ⎝ ACTUAL ⎠

JULY 2022

Initially, increasing the pressure differential will increase the power available to the actuator and the higher flow will outweigh the power lost by the increased differential across the valve. Beyond a certain point, however, the power lost due to the increasing pressure differential becomes larger than the power gained by higher flow to the actuator, as shown in figure 1.

Figure 1: Pressure drop across valve (ΔPV ).

Experience has shown that this point occurs at approximately 1/3 of the maximum available system pressure and can be calculated as: Where: ΔpV = Total valve pressure differential pS = Available system pressure. 1

Δpv =

• ps

For example, if applying this to a system with a maximum system pressure of 150 bar (2,175 psi), if the sum of the pressures acting on the load (including acceleration, friction, and pressure losses across other connected components and plumbing) and return line back-pressures add up to 100 bar (1,450 psi), 50 bar (725 psi) remains and is the differential that will drive flow across the valve. Assume that the system has a 200 lpm (53 gpm) flow requirement. The graph in figure 2 is for a valve that at 100% command, passes 220 lpm (58 gpm) at a 10 bar (145 psi) differential (flow curve 1). On the surface, this seems like a reasonable, energy-efficient choice because the valve can pass the required flow at a low-pressure differential. The reality is, however, the system has up to 50 bar (725 psi) available to drive flow and at 95% command, this valve can pass over 400 lpm (105 gpm) (flow curve 4), far in excess of the 200 lpm (53 gpm) required. To limit the flow this proportional valve can pass at a 50 bar (725 psi) differential, the spool command would have to be set to about 63% of its full stroke – effectively a 37% reduction in its available control range. The graph in figure 3 is for a valve that at 100% command produces approximately 100 lpm (26 gpm) at a 10 bar (145 psi) differential (flow curve 1) which compared to the 220 lpm (58 gpm) valve is, on the surface, too small.

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Figure 2: Nominal flow with a 10 bar differential (flow curve 1).

ONSITE TRAINING

Figure 3: 100 lpm at a 10 bar differential (flow curve 1).

What if the valve was sized to take advantage of the full spool stroke at the available pressure differential of 50 bar (725 psi) to pass the required flow of 200 lpm (53 gpm)? Plugging in the known quantities into the equation for QACTUAL:

QACTUAL =

ΔpACTUAL ΔpRATED

• Qrated =

50 •100 = 223 lpm 10

At 50 bar (725 psi) pressure differential, and a 95% commanded spool stroke, this valve passes about 200 lpm (53 gpm) (flow curve 4), equal to the system's 200 lpm (53 gpm) requirement while providing some additional flow capacity. The purpose of using electrohydraulic proportional valves is to provide control. A valve that is sized to provide the metering of flow across the full spool travel offers the best resolution and performance. It is well understood that a flow moving from a higher to a lower pressure zone without doing useful work is energy lost in the form of heat and the pressure losses incurred using a properly sized proportional valve is no exception. Simply increasing the size of the valve will not provide for a more energy efficient system because the valve must still be throttled to the equivalent cross sectional area to regulate flow, resulting in the same magnitude of pressure loss and heat generation. One way to make the system more energy efficient is to dramatically reduce the maximum supply pressure and substantially oversize the valve to pass the required flow at the lower available differential. However, larger proportional valves have bigger spools with more mass and are not as quick to respond to an input signal change as a smaller valve flowing at a higher pressure differential. Using the higher available pressure differential to drive the required flow through a smaller valve (while respecting the power limits mentioned earlier) certainly is less energy efficient, sometimes significantly so, but it is the price to be paid for greater control. Proper sizing of industrial type, electrohydraulic proportional valves can be a rather involved, multistep process but is critical in performance-dependent systems.

•

TEST YOUR SKILLS the inlet pressure to a proportional the Δp through a valve beyond 1. When 2. Increasing valve is doubled with no change to the 1/3 of the available system pressure: outlet pressure, the resultant flow is: a. reduced by 50%. b. the same. c. doubled. d. increased by 141%. e. increased by 400%.

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AND CERTIFICATION FOR: Hydraulic Techs & Engineers Electrical Techs & Engineers Pneumatic Techs & Engineers Multicraft Techs & Engineers

a. increases the power available to the actuator. b. decreases the power available to the actuator. c. causes the actuator to reverse. d. has no effect on the system. e. reduces the heat load in the system. See page 31 for the solutions.

UPSKILL YOUR WORKFORCE! CFC provides direct, Industry and/or Machine-specific training to companies the world over. Our Hands-On Training Equipment is mobilized directly to your facility with Certified Instructors traveling on-site. This turnkey approach includes all books, materials, equipment, and travel arrangements. We have the capability to upskill your entire workforce NOW! CFCINDUSTRIALTRAINING.com 7042 Fairfield Business Drive Fairfield, Ohio 45014 +1 513.874.3225 info@cfcindustrialtraining.com JULY 2022

SPECIAL AD SECTION

PRODUCT SPOTLIGHT

Go ahead. Push me. Ordinary heavy duty not heavy enough? Heavy-Duty Mill Cylinders for: • 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 Yates Cylinders Alabama 256.351.8081 Yates Cylinders Georgia 678.355.2240 Yates Cylinders Ohio 513.217.6777

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

Genuine Donaldson Internormen-Eaton Velcon-Parker We're hydraulic filter experts. We've been doing it for over 30 years. We're very competitive and happy to serve your needs. If you need hydraulic filter application help, we know the right questions, and we can give you the right answers. J/T Hydraulics & Service Co. Inc. 1601 W. 25th Street • Houston, TX 77008 Local: 713.984.9727 • Toll Free: 800.591.8280 Fax: 713.861.2250 • www.jthydraulics.com

Coxreels Extreme Duty Series Born from the coalescing fires of the highest strength springs, stainless steel rollers, dual sintered bronze bearings, multiple axle supports, and welded box frames, the XTM Extreme Duty Reel combines the ultimate features into the world’s most robust reel solution. Special features such as swivel retainers which prevent unwanted vibratory loosening of threaded components and easily accessible ratcheting mechanisms set the XTM series on its own pedestal. High temperature, steel core arbors transfer the extra powerful heavy duty spring motor torque to the multiple supported axle ensuring reliable rewind in odd positions or dirty situations. Available in pressure ranges up to 5000 PSI, and dedicated hose solutions such as Suction hose, DEF hose, Gasoline or Fuel hose, the XTM is the solution for your high demand applications where you simply need the best of the best. www.coxreels.com

JULY 2022

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Hitachi have packaged FlangeLock tool and caps specifically for Hitachi mining excavators. The Hitachi customised kits make sure no matter which component routine maintenance is being performed on, you will always have the exact SPECIAL AD SECTION number of FlangeLocks™* and caps to help reduce contamination. *Note: FlangeLocks™ are not to be used under pressure

Stop The Mess!

SAVE

Call you local Hitachi Muswellbrook representative or • No tools required TIME • No expensive thehardware branchneeded on 02 6541 6300 forSAVE more information. • No more rags stuffed into hoses MONEY • No more messy plastic caps SAVE TERA-GLIDE Isobaric hydraulic hoses • The ultimate contamination control tool LABOR Texcel’s line of constant pressure TERA-GLIDE Isobaric hydraulic • One hand installation SAVE hoses exceed industry demand for higher performance for hydraulic • Eliminate hydraulic oil spills & clean up OIL systems and components. Trust the color coordinated laylines for • Quick installation & ease of usage ease of hose pressure identification. The TERA-GLIDE high abrasion • Safe for personnel & environment hydraulic hose covers are the solution for even the most challenging • Industry acclaimed applications. Contact us to learn more. For more information, call (203) 861-9400 or email www.TexcelHydraulics.com sales@flangelock.com. sales@texcelrubber.com www.flangelock.com 800-231-7116

Metaris Brand Low Speed High Torque Orbital Motors Genuine Metaris Orbital Motors are your best low speed high torque motor option in an economical and compact design. Utilizing proven Roller-Star technology, these motors allow for high efficiency, smooth operation and a long operational life. The motors come equipped with a high pressure shaft seal and also come in a wide range of displacements. The Genuine Metaris Orbital Motor is a functional replacement for common motors in the market today such as Eaton®/ Char-Lynn®, Danfoss®, Parker® and White®. Hydraulex For more information, call us at 1-800-323-8416 or visit www.hydraulex.com

Plastic Bodied Solenoid Valves Spartan’s line of composite plastic bodied solenoid valves are used all over the world due to consistent reliability, cost-effectiveness, quick availability, and application versatility. Learn more at www.spartanscientific.com. customerservice@spartanscientific.com 8510 Foxwood Ct, Youngstown Ohio 44514

Contact us to showcase your products and services in the Product Spotlight. This special section is a high-profile area offering product-specific advertising. Visit www.fluidpowerjournal.com for more information or to view our media guide.

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JULY 2022

Screen Test NEW STANDARDS FOR ASSESSING HYDRAULIC FILTERS By Paul Klick, Global Hydraulic and Bulk Fuel Product Manager, Donaldson

dump truck that can’t dump isn’t worth much. That is why, with the current supply chain challenges and lead times on replacement parts, it is important to protect sensitive hydraulic components. These challenges also emphasize the importance of effective hydraulic filtration and, by extension, hydraulic filtration testing. If you haven’t thought much about how hydraulic filtration products are tested, you’re not alone. Most fleet managers and equipment operators simply confirm that the filters have been installed and often don’t ask if the filter will protect hydraulic components and keep the equipment running. If only it were that simple. If only all testing standards were equal. For hydraulic filtration manufacturers to publish micron rating and efficiency on their filter, they need to follow ISO test standards, and performance needs to be measured by laboratory testing set to those standards. The currently accepted test standard, ISO 16889, was published 23 years ago and does not accurately reflect the real-world conditions in which a hydraulic filter has to perform. The test mimics the steady flow rate of the hydraulic pump but not the true agitating nature of the valves opening and closing and cylinders extending and retracting, which is typically a change in flow rate of up to 400%.

New alpha test standard Hydraulic equipment often operates in environments that aren’t accurately re-created by bench tests in a lab. You can never truly re-create

JULY 2022

all the variables and stresses that, say, a construction site might throw at a hydraulic system, and previous standards didn’t require testing procedures that came close to mimicking those variables. Filter manufacturers can now mimic those parameters per the new ISO test and evaluate filter efficiency, capacity, and the capture and retention of dirt particles with dynamic flow rates reproducing real-world conditions. With the 2021 industry ratification of ISO 23369, lab testing to this new standard now replicates real-world filter working conditions more accurately. That means that yesterday’s Beta efficiency hydraulic filtration technology needs to improve to perform well in today’s Alpha efficiency test standards. In the past, filters were rated to hold or retain a specific amount of contaminant, but that amount didn’t consider how much contaminant the filter would actually retain under stress or during stops and starts. It turns out that hydraulic filters that are exposed to varying flow and pressure rates are less efficient than previous lab test methods indicated. To put this in more visual terms, fill a glass of water with dirt or silt. Eventually, the dirt settles on the bottom and the water appears to be mostly clear. Now bump the glass slightly, and see how the water clouds up a bit. Now imagine that the glass is constantly being jarred and jostled in unpredictable ways. The bottom of the glass is a hydraulic filter that meets previous ISO standards. It’s great at keeping the dirt out of the fluid under ideal conditions, but add a variable like flow fluctuation and it releases some of the contaminants.

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Filtration products designed and tested to standard ISO 23369 will be much better at keeping the dirt out of the fluid under stress, thanks to the required cyclic flow tests and “capacity under dynamic flow” tests.

Testing filter efficiency For fleet managers, a hydraulic filter must capture contaminants of a specific size at a specific efficiency. If it can’t, the equipment fails eventually. But how do you tell what that particle size and efficiency should be? The new ISO standard goes a long way toward being a guiding light, but not every filter is designed to perform under the new standard.

In general, a premium filtration product offers premium results. You can tell the quality of a filter by noting the Beta ratio, if the product lists it on the can. Not every hydraulic filter manufacturer notes its Beta ratio, however, which is reason to be cautious. The old way of calculating efficiency was called “nominal,” generally meaning that the filter would capture 1 out of every 2 (Beta 2) particles that challenge it at a given size. A Beta ratio of 10 micron nominal means the filter is about 50% efficient at capturing 10 micron and greater particles. Absolute, or Beta 75, is generally regarded as 98.7% efficient or capturing 74 out of every 75 particles that challenge it at a given micron. For the last two decades, most quality filter manufacturers rate their filters at Beta 200 (99.5%) or Beta 1000 (99.9%) efficiency at a given micron. With the new ISO 23369 standard, Alpha rating now identifies how efficient a hydraulic filter will be in real-world dynamic flow conditions. A Beta ratio of “10 micron Alpha 1000” captures 999 particles out of every 1,000 that challenge it with (99.9%) of 10 microns and greater in size, while the flow rate is fluctuating by a factor of 4. When it comes to protecting hydraulic systems, filter efficiency is key. The number one reason for hydraulic system failure is surface wear caused by contaminated fluid. Up to 70% of failures, in fact, lead back to contaminated fluid. Any contamination in the fluid can cause wear and abrasion.

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Even dirt particles smaller than a red blood cell can cause major issues. A red blood cell is only 8 µm in size! Another thing to remember is that contamination always leads to more contamination. Picture a dirt particle circulating at high velocity around a system at 70 MPa (10,000 psi). It gouges or wears a component, breaks down in size, and now there are more particles. The problem grows exponentially, and a hundred microscopic particles become a thousand, and a thousand become a million. Then you’re calling the maintenance department to retrieve your excavator because a servo valve or piston is damaged. And unplanned downtime is lost revenue. So how much is effective filtration worth to your company? How much revenue will you lose if your equipment breaks down? Because, after all, a dump truck that isn’t dumping isn’t worth much at all.

•

JULY 2022

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CL ASSIFIEDS

10 & 15 mm Electronic Valves Compact, quick, powerful!

Technical Support

HIGH FLOW PROPORTIONAL FLOW CONTROL • 16MM to 50mm • Standard ISO 7368 and DIN 24342 cavity • High performance 5,000 psi • On board amplifier • 0-10 volt command

almomanifold.com

Large Inventory Standard, High Flow, Latching & ISO Series

877-245-6247 HYDRAULIC FLANGES and COMPONENTS THE “SPECIAL” YOU WANT IS PROBABLY ON OUR SHELVES MAIN Mfg. Products, Inc.

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

almomanifold.com

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

The correct answers to Test Your Skills on page 23 are 1-d and 2-b.

ADVERTISER INDEX Company............................................................................... Page............................................. Phone.............................................................................. Web Allegheny York LLC................................................................................19........................................ 717-266-6617........................................................www.alleghenyyork.com Almo Manifold........................................................................................31...1-989-984-0800, 1-800-ALMO-NOW................................................................. almomanifold.com Canfield Connection........................................................................12, 27.....................................1-800-554-5071.................................................www.canfieldconnector.com CFC-Solar................................................................................................25........................................ 513-874-3225................................. www.CFCINDUSTRIALTRAINING.com Clippard.............................................................................................23, 31........................................ 877-245-6247..................................................................www.clippard.com co-ax .......................................................................................................30........................................ 215-757-3725.............................................................www.coaxvalves.com COXREELS.........................................................................................26,30........................................ 800-269-7335................................................................. www.coxreels.com Flange Lock.................................................................................... 27, IBC........................................ 203-861-9400..............................................................www.flangelock.com Fluidyne Fluid Power ................................................................ 22-23, 31.....................................1-586-296-7200............................................................. www.FluidyneFP.com Hunger Hydraulics................................................................................... 3.....................................1-800-248-9232...........................................................hunger-hydraulics.com Hydraulex....................................................................................18, 27, 31.....................................1-800-422-4279............................................................... www.hydraulex.com Hydraulics, Inc....................................................................................3, 26........................................ 817-923-1965......................................................... www.hydraulicsinc.com J/T Hydraulics & Service Co.................................................................26.....................................1-800-591-8280............................................................ www.jthydraulics.com Main Manufacturing Products.............................................................31.....................................1-800-521-7918................................................................ www.mainmfg.com MOCAP INC.............................................................................................. 3.....................................1-800-633-6775...................................................................www.MOCAP.com MP Filtri USA................................................................................11, 23,29........................................ 215-529-1300........................................................www.MPFILTRIUSA.com Ohio Fabricators Co............................................................................. IBC........................................ 888-354-0291......................................................................www.ohfab.com TEXCEL............................................................................. 27, Back Cover........................................ 800-231-7116...........................................................www.texcelrubber.com Wandfluh.................................................................................................23........................................ 847-566-5700.......................................................... www.wandfluh-us.com Yates Cylinders, Inc............................................................................1, 26.....................................1-586-778-7680................................................................. www.yatesind.com

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JULY 2022

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CONTAMINATION CONTROL

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.

CO U T CO NTA LTIM HE NT M A RO INA TE L T TI OO ON L

Stop the Mess

THE FLANGELOCK™ TOOL AND CIRCUIT BLANKING CAPS

The FlangeLock™ tool and caps are the ultimate contamination control tools for protecting your hydraulic system. The FlangeLock™ allows for the simple sealing of open hydraulic flanges without tools while the caps can be bolted in place of a flange connection. Easy on, easy off, they offer a leak-proof solution to hydraulic systems and environmental cleanliness. FlangeLock™ tools and caps stop the mess.

The FlangeLock™ Tool is the ultimate contamination control tool for protecting HITACHI MAKING systems. CONTAMINATION CONTROL EASY sealing of open SAE code 61, 62 your hydraulic It allows for the simple Hitachi have packaged FlangeLock™ tool and caps specifically for Hitachi mining excavators. The Hitachi customised & CAT-Style hydraulic flanges without tools. Constructed from lightweight aluminum. kits make sure no matter which component routine maintenance is being performed on, you will always have the exact Easyofon, easy off.™*Offers to hydraulic system and environmental number FlangeLocks and capsatoleakproof help reducesolution contamination. cleanliness. FlangeLock™ Tools stop the mess! ™ *Note: FlangeLocks are not to be used under pressure

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• No tools required • One hand installation Call you local Hitachi Muswellbrook representative or • No expensive hardware needed • Eliminate hydraulic oil spills & clean up the branch on 02 6541 6300 for more information. • No more rags stuffed into hoses • Quick installation & ease of usage • No more messy plastic caps • Safe for personnel & environment • The ultimate contamination control tool • Industry acclaimed

This product is Patented, other Patents pending.

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

WHERE ARE YOUR FILTERS? If you bought from OFCO, you’d be using them now.

Strainers • Filters • Breathers • Diffusers Stock and Custom Filtration Solutions Ohio Fabricators Company designs and manufactures your hydraulic solutions right here in our Central Ohio factory. Our quick-ship program for standard products means you receive your shipment within days, not months. Even customfiltration solutions get our unparalleled delivery times. Proudly Made in the USA • ISO 9001:2015 Compliant

OFCO-FPJ-012022.indd 1

Call or email our sales team today to check our stock and discuss your specifications.

info@ohfab.com • 888.354.0291 www.ohfab.com 12/13/21 12:19 PM

MAKING A DIFFERENCE

FOR YOUR BUSINESS Our cutting-edge line of hydraulic hose and fittings is not just a product division. It’s a promise of superior service, quality, technical support and availability. We’ve built our company on impeccable customer service. Let us know how we can make a difference for your business. call 800.231.7116 or email sales@texcelrubber.com

Fluid Power Journal July 2022

Articles inside

Test Your Skills

Cover Story