Pumps and Valves May/June 2018

ENDORSED BY SAPMA, SAPSDA, SAVAMA AND VAMCOSA

MAY/JUN 2018

IF IT’S NOT INVAL®, IT’S NOT INVINCIBLE Adopt analytics to smart pumps Pipes, Pumps Valves Africa - May/Jun 2018 The fundamentals about pump efficiency andand control

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Pipes, Pumps and Valves Africa - May/Jun 2018

CONTENT INDUSTRY NEWS Grundfos takes the field in Russia

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ENDORSED BY SAPMA, SAPSDA, SAVAMA AND VAMCOSA

MAY/JUN 2018

BMG appointed as distributors for Dual Valves products in South Africa and into Africa 6

PRODUCTS & SERVICES Concrete surface enhancement in diverse applications, including highly aggressive environments 8

IF IT’S NOT INVAL®, IT’S NOT INVINCIBLE Adopt analytics to smart pumps The fundamentals about pump efficiency and control

PUMPS Empowering pumps

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Adopt analytics for smarter pumps

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The fundamentals about pump efficiency and control

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Four unique pump design considerations for mobile mine dewatering applications 18 KSb Pumps for University of Pretoria laboratory

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New wireless pressure qauge app increases convenience and safety

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Break barriers, connecting ideas

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Coating solution extends casing life span and saves costs

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Integrated Pumps Rental adds stainless steel submersibles to rental fleet

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Spanish pump-manufacturer visit proves a success

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VALVES eDART slurry control valves meet exacting demands of advanced level control on flotation machines 34 Tank blanketing effectively prevents fires in flammable liquid storage tanks

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Type SAFE-HF plug valve

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Caminex report back

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PIPES Inspection that took 5 months now completed in a single day

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Nampo report back

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BUYERS GUIDE - PUMPS

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BUYERS GUIDE - VALVES

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On the cover

Invincible Valves Tel: +27 (0) 11 822-1777 Email: enquiries@invalve.co.za Web: www.invalve.co.za

Pumps & Valves Africa

Managing Editor: Surita Marx Tel: +27 (0) 11 475-0010 Cell: +27 (0) 83 281-5761 Email: info@pumpsandvalves.co.za Web: www.pumpsandvalves.co.za Sales: Lusana Mrkusic Email: lusana@pumpsandvalves.co.za Email: info@pumpsandvalves.co.za Production: Jeanette Jordaan Sub-Editor: Debbie van Rensburg

Index to Advertisers

Ainsworth Engineering 27 Air & Vacuum Technologies 33 AMD Rotolok IFC Electra Mining 7 Ernest Electro 39 Garnett Cross Hydraulic Courses 17 Industrial Valves & Engineering 42 Invincible Valves OFC, OBC, 11 Kew Foundry 19 KSB 29 Pamodzi / Unique 5 Sam Engineering 31 Stewarts & Lloyds 21 Tectra 9 VAG-Klamflex 13

Disclaimer

Opinions in this Publication are those of the authors and do not necessarily reflect those of this publication, its editorial board, its editor or its Publishers SAPMA. or VAMCOSA The mention of specific products in articles and advertisements does not imply that they are endorsed or recommended by this Publication or its publishers in preference to others of a similar nature, which are not mentioned or advertised. Reliance on any information contained in this journal is at your own risk.

While every effort is made to ensure the accuracy of editorial board makes no representations or warranties, express or implied, as to the correctness or suitability contained and/or the products advertised in this publication. The Publisher shall not be liable for any damages or loss, howsoever arising, incurred by readers of this publication or any other person/s. The Publisher disclaims all responsibility and liability for any damages, includes pure economic loss and any consequential damages, resulting from the use of services or products advertised in this publication. Readers of this publication indemnify and hold harmless the publisher, its officers, employees, and servants for any demand action, application or other proceedings made by any third party and arising out or in connection with the use of any services and/or products or the reliance on any information contained in this publication.

Pipes, Pumps and Valves Africa - May/Jun 2018

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INDUSTRY NEWS

Grundfos takes the field in Russia

Unleashing the great game

Sharing our skills with the best Alexander Gatsenko, Head of Sales Group, at Grundfos Russia says that delivering solutions to a project of this magnitude has been hard work, but definitely hard work worthwhile.

At the football world championship in Russia, 736 players from 32 different countries are battling it out for the biggest prize in world football. It is a month of nerves and drama, as some nations burst with joy, while others weep in despair – you might say it’s a Russian Roulette. Behind the scenes, Grundfos has played a significant part in ensuring a troublefree execution of the tournament.

- The football world championship is a huge event, so playing such a vast part in it is very significant for Grundfos.

For instance, providing so many pumps to Luzhniki Stadium, the biggest stadium in the country and the venue for the final, has well and truly cemented Grundfos’ position in Russia. We like to place ourselves alongside the best, and this project puts us alongside the best athletes and the best sport in the world. It has been a long process, but definitely one that has been really positive for us, he says.

Heating up the competition

The world’s attention is on these elite athletes fighting tooth and nail to bring glory to their country and their compatriots watching anxiously at home. But in order for these players to perform on the biggest stage, it’s important that everything on said stage runs smoothly. Grundfos has contributed to ensure that all the stadiums used during the tournament create the best possible conditions for both players and spectators.

Driving team performance With more than 800 Grundfos units installed across the various stadiums, the project has proven to be a real game changer for Grundfos in Russia. But it is particularly at Kaliningrad Stadium, Luzhniki Stadium and Rostov Arena, where Grundfos has made its mark, providing equipment for entire systems including water supply, heating and ventilation, drainage, cooling and firefighting systems to name a few.

All these systems work together to ensure the best possible comfort in the stadiums – in other words, it’s a team game, in which all components need to work together. Just like football.

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Pipes, Pumps and Valves Africa - May/Jun 2018

Kaliningrad Stadium is the tournament’s western-most arena located between Poland and Lithuania. Hosting four matches during the tournament, it is set to welcome more than 140.000 spectators over the four matchdays. Grundfos provides a wide range of systems for Kaliningrad Stadium, delivering 57 pumps in total – ranging from Unilift AP wastewater pumps, to pressure-boosting CR pumps to TPE3 cooling and heating systems. With 24 units, Unilift AP is the main representative of Grundfos in this stadium, while the 26 heating and ventilation pumps all combine to improve the comfort for players and spectators alike, giving them a memorable experience.

Did you know?

Kaliningrad Stadium is constructed on the Oktyabrsky island in the centre of Kaliningrad. In order to make the foundation more stable, the soil was compacted. This required no less than 1.6 million cubic metres of sand.

World-class skills make the difference

Flooded with Grundfos solutions

Located in the capital, Moscow, the Luzhniki Stadium is the largest stadium in Russia. It has hosted a variety of huge football matches in the past, but none more so than the final of the football world championship, which it will host in July. With more than 1000 toilets installed throughout the stadium, several thousand litres of water is flushed during a match, making it even more crucial that the many Grundfos Unilift and Grundfos Sololift wastewater pumps know the score. It is not just waste water, however. Grundfos has provided Luzhniki Stadium with a whopping 417 pumps, with the vast majority of those being UPS circulator pumps – ensuring that the stadium is more than prepared to host the world’s best footballers.

Did you know?

Six varieties of grass and 400kg of seeds were used for seeding the lawn at Rostov Arena.

INDUSTRY NEWS

With its location not far from the Ukrainian border, the newly-built Rostov Arena has a capacity of 45.000 and hosts five matches during the tournament. 49 Grundfos units are installed throughout stadium, including four Unilift AP wastewater pumps. Rostov Arena is situated in an area which is flooded once every five years.

To address this risk, the stadium was built on no less than 5424 foundation piles atop a mound of 6 metres.

While the main concerns were taken care of in the construction process, the Grundfos Unilift AP pumps still play an important role in keeping the stadium safe and protecting the foundation.

Did you know?

Since 2013, more than 6,1km of water supply networks and 5,4km of sewerage have been constructed near the stadium to provide it with water.

Contact Rika Gouvea, Grundfos, Tel: +27 (0) 10 248-6000, rgouvea@grundfos.com

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Pipes, Pumps and Valves Africa - May/Jun 2018

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INDUSTRY NEWS

BMG appointed as distributors for Dual Valves products in South Africa and into Africa Dual Products International – local manufacturers of slurry valves for over 30 years – has become one of the world’s leading producers of abrasion resistant valves.

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BMG’s strategy to expand its fluid technology services to meet growing market demand, incorporates the introduction of new products, with the latest developments in design technologies, materials and coatings,” explains David Dyce, business unit manager, Fluid Technology, BMG. “The addition of Dual Valves products to BMG’s portfolio enhances the company’s solution services and broadens BMG’s customer base, providing new market and application opportunities.

“BMG’s expansion programme in the fluid technology sector also involves increasing stockholdings through more than 130 BMG branches and a wide distribution network in South Africa and across borders into Swaziland, Zambia, Botswana, DRC, Ghana, Mozambique, Namibia and Tanzania.

“Market share for both companies will be significantly expanded through this distribution agreement, which improves accessibility to Dual Valves products throughout the African continent.

“The BMG and Dual Valves teams, with their invaluable

BMG has been appointed distributors for Dual Valves products in South Africa and into Africa. Dual Products International – local manufacturers of slurry valves for over 30 years – has become one of the world’s leading producers of abrasion resistant valves.

Back row, from left,: Donald Morrison, general manager, Dual Products International and David Dyce, business unit manager, Fluid Technology, BMG Front row, from left: Gavin Pelser, managing director, BMG and Stephen van Rensburg, managing member, Dual Products International.

Stephen van Rensburg, managing member, Dual Products International, stands with recently manufactured DFV - non return valves with option to manually isolate valve – 750 mm in size. These valves will be used on a copper mine in a slurry application.

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Pipes, Pumps and Valves Africa - May/Jun 2018

leading manufacturers, in terms of consistent quality controls, compatibility, standardisation, reliability and extended service life, is manufactured in accordance with stringent quality specifications.

The Dual Valves manufacturing facility in Gauteng is equipped with the latest equipment, including an in-house pattern maker. An ongoing research and development programme means the range of slurry valves will be continuously improved and extended, according to stringent quality standards and market requirements. This is an important advantage for BMG and its customers.

Components for fluid technology systems and general industrial applications include valves, hydraulic hoses and fittings, accumulators, cylinders, heat exchangers, pneumatics, hydraulic motors and hydraulic plumbing, as well as pumps and reservoir accessories.

Through BMG’s broad branch and distributor network, customers now have access to the Dual Valves range.

Products include dual valves, ball check valves, nonreturn valves, rotary disc valves, air release valves, double ball check valves and dual pinch valves. Recently launched abrasion resistant products include pivot gate valves.

The pivot gate valve is a new rotating gate valve, designed specifically for heavy abrasive and corrosive slurries. The patented design, which allows the valve to cycle in heavy slurries without sticking, is available in three types: wafer, flanged and high pressure valves.

BMG’s product range, which is carefully selected from

BMG’s fluid technology services also cover project engineering and consulting, cylinder design and manufacture, training, repair and testing, as well as onsite container services.

The company boosts its fluid technology services with dependable technical support to ensure optimum safety, efficiency and extended service life of every system, even in corrosive environments and arduous conditions.

INDUSTRY NEWS

experience, are able to specify the correct valves needed for every application and also assist customers in solving the problems of difficult installations and applications.”

Contact David Dyce, Fluid Technology, BMG, Tel: +27 (0) 11 620-1530, daviddy@bmgworld.net, www.bmgworld.net

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PRODUCT & SERVICES

Concrete surface enhancement in diverse applications, including highly aggressive environments Typical applications of Fibertex Formtex® CPF liners are in drinking water tanks, sewage and water treatment plants, settlement tanks, container terminals, bridges and tunnels, marine structures, as well as dams and sluices.

F

ormtex is a two-layer CPF liner, consisting of a drainage layer that allows water and air to escape and a filter layer with a pore size designed to retain cement particles. When surplus water and air is drained from the surface of the freshly poured concrete during compaction, the water/cement (w/c) ratio in the concrete cover is reduced. This results in a denser and stronger concrete, with a blemish-free surface.

Formtex also reduces the formation of blowholes and other blemishes on the concrete surface that normally require extensive deburring after the formwork is removed. The smooth, dense and strong concrete cover is dust-free and because there are no release agents, it is an ideal prepared base for further surface treatment or coatings.

“The chemical and mechanical resistance of concrete structures of sewage plants and settlement tanks are important factors for consideration. The concrete face, which is in constant contact with wastewater, needs to withstand the penetration of aggressive substances and high-pressure cleaning procedures.

Waster water treatment plant - water clarifiers

“The main functions of these robust geosynthetic materials are to improve the durability of a concrete structure, to extend its service life and reduce maintenance costs,” explains Clive Hitchcock, CEO, Fibertex SA. “Formtex CPF liners, which are suitable for all shapes of concrete elements, ensure high quality, durability and low maintenance of concrete elements.

Waster water treatment plant - settlement tank

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Pipes, Pumps and Valves Africa - May/Jun 2018

“In drinking water tanks, mechanical resistance of the concrete is also imperative, as the concrete face is subjected to high-pressure cleaning and, because micro-organisms flourish in voids and feed on oils, it is critical that the concrete surface is smooth, uncontaminated and free from blowholes.

Water tank

PRODUCT & SERVICES

“A recent application for Formtex was at a large container terminal – a heavily reinforced structure exposed to high chloride, CO2 and moisture levels, as well as elevated temperatures. This dense, yet workable concrete CPF liner, provided a fast and safe workflow. Other benefits are extended service life of the container terminal and minimal maintenance costs.

“Typically, the ingress of chemicals, moisture and general degradation, is reduced by more than 50% with Formtex CPF liners.”

Formtex CPF liners, which reduce micro-bacterial growth, are a highly efficient alternative to slip agents for fresh water supply structures. CPF liners also minimise the penetration of graffiti media, making it easy to remove from a surface.

Formtex is designed for tensioned, glued or selfadhesive mounting to vertical or inclined surfaces. Once Formtex is attached, concrete casting is performed as usual. These liners can easily be removed from the concrete during formwork striking.

Fibertex, which celebrates 50 years of business this year, manufactures the only nonwoven UV stabilised virgin PP geotextiles in Africa, with certification for durability of over 100 years.

Contact Clive Hitchcock, CEO, Fibertex South Africa, Tel: +27 (0) 31 736-7100, CAHI@fibertex.com, www.fibertex.com 73757_Tectra Automation_Pump and Valves.indd 1

2016/08/11 4:27 PM

Pipes, Pumps and Valves Africa - May/Jun 2018

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Empowering pumps

PUMPS

All around the world pump asset owners and operators are continually pushing for the next performance bump. Finding ways to minimize profit losses while improving pump performance and operations, amidst trying economic times, has not been easy. New technology offers the opportunity to innovate and provide full pump solutions, taking operations to the next level. he global pump market has seen some real volatility in recent years thanks to declining oil and commodity prices. Finding new ways to impact on efficiency, effectiveness and overall competitiveness, has become increasingly difficult.

In the traditional pump market, while there is understanding for the need to ramp up efforts to rethink service delivery models and value proposition, topics such as Industry 4.0 and IIoT (or even just general digital operations) can be quite intimidating.

With more emphasis on training programs; skills development and aftersales services; better and improved maintenance, some gains were made.

However, with profits harder and harder to come by, in a declining market, it begs the question: ‘Where to next?'

Where to start

Enter big data; enhanced automation; data science; the Industrial Internet of Things (IIoT) and artificial intelligence. The difference that these enabling technologies and related transformational efforts are providing to pump manufacturers and end-users alike are quite staggering.

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"Delivering smarter operations through industrial analytics is not as difficult as one might think", says Lukasz Mentel, a data scientist at Arundo Analytics.

According to Mentel, it can be as complex or simple as one makes it, and the same goes for cost. He suggests dividing the digital journey into three stages, to develop the capabilities and understanding required.

used for data-centric computing with operational technology (OT).

"It includes finding the right infrastructure to enable the system," says Mentel.

This journey requires several components, the most obvious being sensors to collect the actual data, a streaming component that involves devices that will enable communication over the Internet, connectivity to the Internet and also secure storage for the data and cloud computing to manipulate and transform data.

"Before one starts streaming data it is important to know what data is worth collecting," he says.

Stage 1 - Technology

Only when this is clearly understood can one start implementing the technology.

This essentially refers to the information technology (IT) systems that will be

"There are many sensors that one can install on a pump, from very standard

Pipes, Pumps and Valves Africa - May/Jun 2018

INVINCIBLE VALVES (PTY) LTD Invincible Valves (Pty) Ltd was established in 1982 and since has grown to a medium sized enterprise located in Knights, Germiston. Invincible Valves prides itself on service excellence and flexibility by striving to enhance our customer’s bottom line.

Our 6,500m² facility in Knights is made up of 4,500m² under roof being our stores and workshop. The facility is fully equipped to offer a one-stop resource for valves and ancillary equipment which we transport globally.

Valve Sales, Reconditioning & Rubber Lining

As an approved BBBEE Level 4 supplier to all major industries within South Africa, we maintain expertise and experience across a broad spectrum of industries and applications with a wide range of products. We offer a comprehensive range of local and imported valves and accessories for the mining, petro-chemical, power generation, water, sewerage and general industries. We have agents in all major centres around the country and service all four corners of the globe.

We offer an in-house rubber lining service for valves, pipes, fittings and vessels which is utilized by many of the country’s major valve manufacturers. In addition we offer complete service, repair and valve reconditioning services for all types of valves.

Our Core Values:

If it's not INVAL® it's not INVINCIBLE

We believe in treating our customers with respect. We grow through creativity, invention and innovation. We integrate honesty, integrity and business ethics into all aspects of our business functioning.

Our Mission Statement: Build long term relationships with our customers and clients, to provide exceptional customer services by pursuing business through innovation and advanced technology.

Our Purpose: P.O. Box 2149, PRIMROSE 1416 Tel: 011 822 1777 / 011 027 1831 Fax: 011 822 3666 Sales: enquiries@invalve.co.za Management: pamdp@invalve.co.za

To be a leader in the Valve Industry by providing enhanced services, customer service and profitability.

Our Vision:

To provide a quality service that exceeds the expectations of our esteemed customers.

Invincible Valves is a proud supplier of quality valve products and ancillary equipment backed by service excellence around the globe. It is the combination of these values that allows us to form lasting business relationships.

© Creamer Media 061115CG

33 Shaft Rd, KNIGHTS Germiston

www.invalve.co.za

TEL: +27 (0) 11 822 1777 | FAX: +27 (0) 11 822 3666 | EMAIL: enquiries@invalve.co.za | WEB: www.invalve.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

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PUMPS

Stage 3 – Operational "But", says Mentel, "none of it matters if the business does not change. The real value of digitization lies in improved operations. Collecting and having data just for the sake of it has no point.

Collect data that can be used to benefit your business" he says.

to extremely customized. Aspects to consider are how many are needed, how often should they be sampled and the robustness to the actual field conditions must be considered as well.

All of these impact on the cost."

According to Mentel, it is therefore important to know what you want to achieve and what data you want to stream, as this will guide the purchase of the IT sensors and systems. Of course, the more data that is collected, the more insights can be obtained, but they also generate more cost.

"Our advice is to rather implement a digital journey as a priority as soon as possible with the focus on economic value first and foremost. Focus on value capture and start with low-risk moves that allow you to learn and iterate. You can always move to more complex systems at a later stage."

Stage 2 – Data This is about transforming the data collected and deciding what analytics to apply to bring in the most value. Mentel says there are five different types of analysis that all deliver a different depth of insights, but also require different capabilities.

"Just like in the first stage one can opt for an advanced and more costly technique or start with a relatively 12

simple process and build it up over time," says Mentel.

He says the most straightforward method is to look at threshold alerts.

"Initial practice usually involves comparisons with a threshold for key values such as temperature and vibration. This will see one comparing sensor readings to recommended thresholds based on test data, on 3rd party calibration or benchmarks and calibrated with own data."

A slightly more advanced approach would be to incorporate the above with KPIs, in other words, manipulating or transforming raw sensor data based on engineering insights (e.g., how fast is a value changing, even if it hasn't breached threshold).

"An even more advanced method, moving more towards machine learning to recognize "abnormal" behaviour, is a data-driven model that understands "normal" behaviour for a specific pump in a specific location/application that immediately detects anomalies," explains Mentel. "A step up from that is using machine learning for failure mode identification and of course the very desirable stage is to be able to do predictive maintenance, where one is predicting failures before they even happen."

Pipes, Pumps and Valves Africa - May/Jun 2018

Says Mentel, "When thinking of your journey then consider solution architecture, data analytics, and operationalization together. They are all part of the same puzzle, working together and serving the same goal."

His advice is to find the low-risk path at each step that will bring minimal functionality so that one can start generating insights as quickly as possible. "Don't think of the cost or complexity, but find low-risk ways to get started. Don't wait for the perfect advanced wireless sensor or instrument, use what you have and only when you have the basic knowledge you can start iterating on possible improvements."

In all initiatives, says Mentel, always focus on the business value. "Tailor the design to the specific goal you want to achieve. What will you change to reduce costs or increase revenue in your business? Pick one and pick the one that is economically justified and also most promising to implement and then focus on it."

Lastly, says Mentel, in the end, the success of the journey will depend on the end user making decisions based on insights, gathered by the infrastructure created. "Create data products for people and not models for data."

Lukasz Mentel, Arundo Analytics; www.arundo.com

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Pipes, Pumps and Valves Africa - May/Jun 2018

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Adopt analytics for smarter pumps PUMPS

Driven by factors such as business intelligence and advanced analytics, the global Industrial Internet of Things (IIoT) is growing at a rapid pace. Whilst IIoT analytics are being widely used in various sectors including manufacturing; healthcare; energy and retail, the pump sector has been slow to the party. Moving it to the top of the agenda should be the priority.

N

ew technologies enable a deeper, ongoing understanding of equipment system performance, potential equipment failures, and specific environmental factors that may contribute to equipment under-performance or failure. These technologies include growing availability of sensor data, less expensive data acquisition and storage, cheaper computing technology, and the wide availability of machine learning and data science tools and techniques to rapidly analyze, understand, and improve system reliability. Despite the many advantages, pump system manufacturers, installers, and end-users often struggle to get started with advanced analytics in their equipment.

According to Xinwo Huang, manager of strategic initiatives at Arundo Analytics, that is because the industry faces some unique challenges when it comes to the adoption and use of digital technology.

"Pump companies traditionally have a legacy of physical assets that were not built for IIoT," he says. "When it comes to dealing with data it is also often a silo approach due to the complexity in the existing infrastructure and also because it is housed in various locations across a company. There is also the perception that large IT investments are needed to capture any value at all."

This is all further exacerbated by the fact that pumps in many situations are operated in remote areas.

"Access and streaming data from these remote locations bring their own unique challenges," says Huang.

Opting for Digital The world is changing. And it is changing fast. More and more sensors, cheaper data storage and compute along with sophisticated machine learning 14

techniques are all resulting in more connected machines and people, more automation and faster decisions than ever before.

"It is fundamentally changing the way that businesses operate around the globe,"

Pipes, Pumps and Valves Africa - May/Jun 2018

says Huang. "Companies like Google and Amazon are great examples of the mass explosion of analytics. These companies have shown the ability to drive advanced analytics across the business and not just into products but also back-office operations and daily activities."

PUMPS

And they are reaping the benefits.

Because make no mistake analytics are not just powerful, but essential to maintain a competitive advantage.

That is why Huang adopting digital must be one of the highest priorities of any pump company's management team at present, says Huang.

"Does it impact the bottom line? Does it make your business look better? Yes," says Huang. "It is the differentiator in business today, an extremely powerful tool."

Several studies underpin this having found that the 100 top companies leveraging digital technology in their core operations are strongly outperforming their peers on all levels.

Understanding Analytics In the pump industry analytics are often seen as complex and therefore expensive, while there is also little understanding of the benefits that can be delivered, resulting in companies shying away from this new technology rather sticking to the old ways.

According to Arundo Analytics data scientist, Lukasz Mentel understanding and using analytics does not have to be complex while implementation is not necessarily as costly as one might think.

But, he says, the pump industry does require a more unique journey to benefit from IoT analytics.

For all this effort, you get limited results as there is not a global overview of the condition of your pump."

"The current strategies being implemented in conditioning and performance monitoring are often based on periodic data collection with regular maintenance intervals as prescribed by the original manufacturer," he says.

"The assessment is then done by comparing the measurement outfits to the schedules recommended by the manufacturer. One, therefore, has pre-set high or low thresholds for key measurements that are not necessarily specific to the pump's application or installation."

According to Mentel, these limitations can be addressed by real-time data streaming and the adoption of datadriven decision-making processes.

Mentel said while this provided valuable information it was hard not to see the severe limitations.

"The accuracy of the data can be questioned when one is only measuring periodically and secondly you can have a mismatch between the recommended thresholds and your actual field deployment because the thresholds more often than not have been decided upon in a laboratory," says Mentel. "It might also be invasive and time-consuming meaning you spend a lot of time performing the actual tests and analysing the results.

"The value of embarking on such a journey is endless with a number of opportunities and benefits," he says. "It allows one to extract insights based on data particular for your system or multiple systems. You will be able to design a proactive process around those insights and make better decisions based on data-driven predictions."

Both Mentel and Huang say getting analytics right and reaping these benefits is far less complex than one might think. It does not involve understanding heavy, technical explanations or even complex processes of how big data works.

"The first step is to simply understand that analytics, when done correctly, will solve real business problems and improve your pump performance," says Mentel.

Xinwo Huang and Lukasz Mentel, Arundo Analytics; www.arundo.com

Pipes, Pumps and Valves Africa - May/Jun 2018

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The fundamentals about pump efficiency and control PUMPS

With more focus on building energy efficiency, building owners often rely on consulting engineers to specify efficient pumping solutions. For variable flow systems, this poses some challenges when parallel pumps are being evaluated.

A

recent international webinar by Reece Robinson of Grundfos Pumps Corporation hit the pause button to review some of the fundamentals when talking about pump efficiency and control.

From the get go, before one can talk about efficient pump selection and control, it is essential to understand the pump performance curve, says Robinson.

“It is important to understand what are the different parts of the curve and how they relate to varying the speed and overcoming pressure and things like that,” he says.

Points on a pump performance curve

Brake horsepower is the horsepower required by the pump. “This is the shaft output power for the pump and as flow increases so does the pump brake horsepower,” says Robinson. “This is not to be confused with nominal horsepower. You might have a 20-horsepower motor on the pump but as that pump is operating from low flow to high flow it will load that motor according to the amount of liquid it is moving and the pressure it is overcoming.”

According to Robinson any point on this curve should be lower than the motor nameplate horsepower.

Shut-off head, sometimes also referred to as dead head, is the point of zero flow.

“This is operating the pump against a closed valve which you don’t want to do for a long time as damage from heat buildup can occur. Heat in the pump casing occurs and ultimately you have damage in the seal,” he says. “So, when we look at pumps and control, the goal is to avoid pumps running at this point for very long. We don’t want to operate the pump in shut-down.”

The operating point is where the system curve intersects the pump performance curve. “This where the pump is actually running,” says Robinson. “You might have what is a called a duty point. This is the actually what is designed for. The designer comes up with a flow and a head and will assign numbers to it based on calculations.”

According to Robinson these are the desired conditions, but when the pump is switched on, it usually outperforms that which requires the throttling of control valves or the balancing of valves to get the pump back where it is wanted.

“Controls like variable speed drive is also used to reduce the pump performance to hit that point. The operating point is where the pump is actually running and the duty point is what it was designed for. Sometimes those two are not the same.”

Run-out or end of curve is the maximum allowable flow rate for the pump. “Flows exceeding this should be avoided,” says Robinson. “Running pumps here for a long time is not advised as it results in lower life time as it outside the pump’s preferred operating range. It increases the inner serviceable of the pump. It does cause damage.”

Pump efficiency refers to the pump hydraulic efficiency and does not typically include the motor efficiency. In most cases it is preferred to run this where the pump is most efficient (also referred to as the knee of the curve that is ranged from high flow to low flow).

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Pipes, Pumps and Valves Africa - May/Jun 2018

Control curve “When one is talking about efficient pumps, it is really about running the pump at its preferred operating range for the longest periods of time,” explains Robinson.

“When we talk about pump control with variable flow then running it at that exact point is very rare. The goal is thus to stay in the zone, those areas closest to that most efficient point.”

He says to know whether one is going to do this it is important to know how to control the pumps.

The control curve is similar to the system curve but it begins with a minimum head at zero flow.

PUMPS

“In most applications head is going to increase as the flow increases. In some applications will have extremely low head, but that would be a totally friction dominated system but the real world shows us that to have some kind of fixed head you need to overcome static head.

In distributed HVAC flow, there are coils and a certain amount of head must be present in order to establish satisfactory flow. The control curve represents a theoretical calculation of where a variable speed pump will operate at part load.”

Curves of constant efficiency with speed reductions

Pump affinity Laws

Net Positive Suction Head (NPSH), often jokingly referred to as not pumping so hot, is a value that must be paid attention to, says Robinson. “You must make sure you have enough suction head to keep the pump operating optimally. It is very important in boiler feed systems and systems with flooded suction. It is not that important for cold water from a pressurized source or for hydronic heating and cooling systems.”

System Curve This, says Robinson, is a simple curve that represents the friction loss in a system as the flow changes.

“The quadratic relationship between flow and friction loss, means that if you know the head and flow of the system at any point in time, you can calculate the head for each corresponding flow point and draw a curve.”

Varying the speed of a pump means understanding the affinity laws. These laws define the mathematical relationships between flow (GPM), pump speed (RPM/ change in impeller diameter), head and brake horsepower (BHP).

They are: 1.

2.

3.

Flow varies linearly with pump speed Head varies with the square of the pump speed Brake horsepower varies with the cube of the pump speed.

Robinson says it is important to remember that the affinity laws assume constant pump efficiency. “The pump can only run continuously at its best efficiency point along a system or control curve that follows a curve of constant efficiency.”

If one introduces constant pressure, says Robinson, as flow reduces so will the pump efficiency. Therefore, when selecting pumps for variable flow it is important to select pumps based on a design flow that is to the right of the pumps best efficiency point.

Pipes, Pumps and Valves Africa - May/Jun 2018

17

Four unique pump design considerations for mobile mine dewatering applications PUMPS

Jeremy Hanhiniemi explores four unique pump design considerations which should be optimised in mobile mine dewatering pump designs.

T

here are a number of essential factors to examine including operating and fuel costs, pump efficiency and wear, pump unit capital costs as well as diesel engine factors and performance.

In both underground and above ground mines, quarries, and construction sites, water can accumulate and interfere with operations, necessitating its management and removal. The process to achieve this is referred to as dewatering. Water is essential to mineral processing to recover valuable ores. Following their extraction, large sediment or tailings ponds are used to collect the tailings laden water from these processes.

After settling out of the water in these tailings ponds, water is recycled back to the process plant to be recycled using dewatering technology.

Dewatering usually employs a pump. Flexibility is important in dewatering applications due to variables including inclement weather and changes in mine planning. Consequently, applications are often diesel engine powered mobile plants as opposed to electrically powered fixed plants.

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to the catchments and the action of dewatering pumps necessitates timely management of the water level.

Because of thermodynamic constraints the pump must be located close to the water source in order to avoid the damage and loss of flow caused by cavitation. To prevent flooding of the pump and potential cavitation, frequent movement of the pump unit is required.

Dewatering pumps, especially larger units, are typically skid mounted and require dozers or other equipment to move around site, which can cause costly interruptions to this equipment’s utilisation in mining operations.

Owing to the costs associated with frequent movement of the pump units, increasing suction lifts, defined by the vertical height from the water level to the impeller eye, are highly desirable. This lift and the necessary priming of the pump are usually achieved through the use of a vacuum primed pump system or submersible pumps. This suction lift is constrained, however, by the Net Positive Suction Head required (NPSHr) of the pump which can be thought of as the minimum pressure energy required for the pump to operate.

1. Timely management of water level

2. Speed requirements and the influence on suction lift performance

Due to the need to keep mines dry, the volume and ullage of dewatering catchments are often relatively small.

This, coupled with the highly variable nature of inflows

Based on the mobility requirements mentioned previously, the pumps typically feature diesel powered engines.

Direct coupling is usually employed as the initial cost and

Pipes, Pumps and Valves Africa - May/Jun 2018

ongoing maintenance of gearboxes is excessive. When directly coupled to a diesel engine, the pumps are required to operate at relatively high speeds, usually between circa 1000RPM and 3000RPM. Centrifugal pump flow performance drops with increasing speed, resulting in competing requirements.

3. Efficiency, speed and lift tradeoff

Pump duty considerations also come to bear on this trade-off. Mine dewatering operations typically have relatively high head requirements based on economic pit depths and underground applications, and wherever possible single stage applications are desirable based on the reduced rotating equipment maintenance requirements.

Therefore, since centrifugal pump head development is largely a function of speed, impeller diameter and impeller vane exit angle, and increasing impeller diameter is correlated to increasing pump capital cost, higher pump speeds are also desirable from this perspective.

Matching of the pump impeller diameter and, indirectly, the pump torque curve to the engine is also an important consideration. Running the diesel engine at high loads and below its rated speed, results in a ‘lug’ condition. Lug conditions can cause high exhaust manifold temperatures in turbo charged engines, as they are not running at their optimum speed and have less air filling the cylinders.

This can also lead to higher cylinder temperatures and associated mid to long term effects on engine valves and other components. Additionally, when operating under ‘lug’ conditions, the reduced speed of cooling fans reduces heat rejection and can be detrimental to the wear life of the engine.

PUMPS

While increased speed reduces suction lift, it also has the effect of improving pump efficiency. There are a number of other operational considerations attributed to the solids handling requirements of the pumps and the importance of preventing efficiency loss caused by premature wear. Wear performance is considered against speed and vane thicknesses to measure Total Ownership Cost.

increasing pump speeds can reduce engine capital costs.

When considering mobile dewatering applications, it is important to evaluate all of the above points. Here at Weir Minerals our dewatering portfolio covers a variety of dewatering solutions for our customers, drawing on our extensive engineering and application expertise.

Our Multiflo® dewatering pumps are uniquely designed to balance and optimise the conflicting requirements of pump moving, operating and fuel costs, pump efficiency and wear, pump unit capital cost in addition to diesel engine considerations and performance. Visit our mine dewatering page for more information or contact your local team.

4. Diesel engine consideration

Contact Weir Minerals,

As higher diesel engine speeds typically result in increased power outputs relative to engine size,

www.global.weir

Tel: +27 (0) 11 929-2706,

BEING IN THE BUSINESS FOR MORE THAN 120 YEARS, WE KNOW HOW TO ASSIST YOU. KEW FOUNDRIES focuses on continuous product development and improvement in order to deliver a range of small to large quality castings.

Specialising in all grades of Grey Cast Iron and SG Iron between 1 kg and 10 500 kg, KEW services a variety of markets from its central location in South Africa.

KEW FOUNDRIES has built the expertise that allows the company to service the requirements of the VALVE Industry, PUMP and WATER RETICULATION Industries, Railways, Materials Handling and Rolling Element industries, just to name a few.

SERVICING ALL AREAS IN SOUTH AFRICA FROM KIMBERLEY SINCE 1893

©Creamer Media 101117CG

Contact us for your casting needs today: Tel: +27 (0) 53 841 0474 Fax: +27 (0) 53 841 0473 e-mail: info@kewfoundries.co.za Web: www.kewfoundries.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

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KSB Pumps for University of Pretoria laboratory PUMPS

KSB Pumps and Valves has assisted the University of Pretoria in the construction of a large controlled-temperature test unit, which will form the backbone of ongoing research into heat transfer, fluid mechanics and thermodynamics.

T

he impressive unit will allow students to plug directly into hot, moderate or chilled liquids to use on research projects and will shave approximately 50% off students’ overall project build-up time thereby allowing more time to carry out actual research. In addition, it is expected to save considerable costs in future.

Chairman of the School of Engineering and Head of Mechanical and Aeronautical Engineering, Professor Josua Meyer, says the multi-million Rand project was part-funded by the University, with donations from industrial companies like KSB Pumps and Valves for funding, equipment and construction of the system.

Critical studies About the centralized temperature-controlled unit, the Professor explains that the system relies on temperature monitoring of flow loops where water is conditioned through the relevant heat pumps and chilling units at near boiling or lower temperatures, as well as subzero degree Glycol at -20ËšC.

Danie Gouws, Technologist of the research laboratories of Mechanical and Aeronautical Engineering of the University of Pretoria

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Pipes, Pumps and Valves Africa - May/Jun 2018

Professor Josua Meyer, Chairman of the School of Engineering and Head of Mechanical and Aeronautical Engineering of the University of Pretoria

THE RIGHT CHOICE FOR ADVICE & SUPPLY IN ALL APPLICATIONS OF FLUID CONTROL

PUMPS

IRRIGATION

PIPES & FITTINGS

PUMPS & VALVES

FLUID CONTROL DIVISION BRANCHES: ALRODE, BLOEMFONTEIN, BOOYSENS, BOKSBURG, BRITS, CAPE TOWN, DURBAN, EDENVALE, GEORGE, PORT ELIZABETH, KIMBERLEY, KLERKSDORP, MAFIKENG, NELSPRUIT, POLOKWANE, PRETORIA, ROBERTVILLE, SPRINGS, VEREENIGING, VAAL, WADEVILLE, WITBANK, WYNBERG

Customer care: 0860 10 27 99 www.stewartsandlloyds.co.za Pipes, Pumps and Valves Africa - May/Jun 2018

21

PUMPS

Etanorm pumps form the backbone of the system

“The user demand within each loop is controlled using a system of pumps, variable speed drives, pressure transducers and special valves to allow up to 8 experiments to plug-in simultaneously without affecting either the flow rate, working pressure or temperature of the unit.

This calls for absolute reliability and requires the best possible equipment to be used to avoid downtime that may impede any of the research programs,” says Danie Gouws, Technologist of the laboratory.

“In the research laboratory reliability is of the utmost importance and means that the University will not compromise on quality and will procure the best, most suitable equipment that money can buy.”

Etanorm pumps This meant that through its learned-team, the University specified five Etanorm 50/32/250 pump sets with 3 kW, 2.2 kW and 1.5 kW motors respectively according to flow rates, required pressure and other requirements. With their proven reliability and unwavering performance, they were selected to accomplish the main pumping requirements of the complex system.

PLC- control ensure that all parameters are checked and balanced to ensure the system delivers fluid at the right temperature set points and flow conditions 24-hours per day, regardless of the number of students using the facility.

It also ensures that ongoing and larger-scale research projects can be undertaken, including some cutting-edge research that is already being done in collaboration with other international Universities.

These include valuable research concerning concentrated solar power (CSP) research, nuclear safety as well as micro and power-related electronics, heat exchange tubes and clean energy studies among others being carried out by 10 staff and 30 full time students including 10 PhD students, as well as a number of Master’s Degrees students.

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Pipes, Pumps and Valves Africa - May/Jun 2018

Committed to education KSB Pumps and Valves external sales representative, Dylan Mitchell, says the company was initially approached by Ascend Consulting Engineers to obtain data on the pumps.

The company later revealed that a project was being undertaken for the University and that sponsorships were being sought.

“In this regard, we were ready to assist the educational institution and gave the thumbs-up for the project. Wherever technical assistance was required, we were happy to weighin with our expertise. However, we must commend the University, consulting engineers and the contractors who worked tirelessly to deliver a world-class installation.

“As a result, we are proud to be associated with this prestigious project which lends itself to assisting future engineers to change the face of tomorrow. This is another feather in the KSB cap.”

Switched on With the system up and running, Professor Meyer concludes that the project is already proving to be a great success with numerous research projects already plugged-in.

"We are thankful for the ongoing support of companies to the cause of our students and the University. Considering heat transfer is a fundamental subject for all under graduate engineering studies and that the University of Pretoria produces between a quarter and a third of the country’s engineers, we believe that this kind of support is essential and be viewed as a strategic investment in engineering for all of South Africa to reap the rewards.”

Contact Annett Kriel, KSB Pumps and Valves, Tel: +27 (0) 11 876 5600, Fax: +27 (0) 11 822 1746, Annett.Kriel@ksb.com, www.ksbpumps.co.za

Invincible Valves (Pty) Ltd was established in 1982 and since has grown to a medium sized enterprise located in Knights, Germiston Invincible Valves prides itself on service excellent and flexibility by striving to enhance our customer’s bottom line.

Our 6,500m² facility in Knights is made up of 4,500m² under roof being our stores and workshop. The facility is fully equipped to offer a one-stop resource for valves and ancillary equipment which we transport globally.

As an approved BBBEE Level 4 supplier to all major industries within South Africa, we maintain expertise and experience across a broad spectrum of industries and applications with a wide range of products. We offer a comprehensive range of local and imported valves and accessories for the mining, petro-chemical, power generation, water, sewerage and general industries. We have agents in all major centres around the country and service all four corners of the globe.

We offer an in-house rubber lining service for valves, pipes, fittings and vessels which is utilized by many of the country’s major valve manufacturers. In addition we offer complete service, repair and valve reconditioning services for all types of valves.

Our Core Values: We believe in treating our customers with respect. We grow through creativity, invention and innovation. We integrate honesty, integrity and business ethics into all aspects of our business functioning.

Our Mission Statement: Build long term relationships with our customers and clients, to provide exceptional customer services by pursuing business through innovation and advanced technology.

Our Purpose: To be a leader in the Valve Industry by providing enhanced services, customer service and profitability.

Our Vision: To provide a quality service that exceeds the expectations of our esteemed customers.

Invincible Valves is a proud supplier of quality valve products and ancillary equipment backed by service excellence around the globe. It is the combination of these values that allows us to form lasting business relationships.

Invincible Valves (Pty) Ltd

If it's not INVAL®, it's not Invincible 33 Shaft Road, Knights, Germiston TEL: +27 (0) 11 822 1777 | FAX: +27 (0) 11 822 3666 EMAIL: enquiries@invalve.co.za | WEB: www.invalve.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

23

INVAL 1pc Screwed Ball Valve SPECIFICATIONS 1000PSI/PN63 Reduce Port Investment Casting Blow‐out Proof Stem Locking Device Handle (Option) Thread: ASME B1.20.1 BS21.DIN2999/259, ISO228‐1 Inspection Testing: AP1598, EN12266

INVAL 2pc Flanged Ball Valve SPECIFICATIONS ANSI CLASS 150 Full Port Investment Casting Blow‐Out Proof Stem ISO5211 Mounting Pad Casting Approved AD2000‐WO Design: ASME B16.34 End Flange: ASME B16.5 Inspection Test: API598

INVAL 3pc Screwed Ball Valve SPECIFICATIONS 1000PSI/PN63 Full Port Investment Casting Blow‐out Proof Stem Locking Device Handle (Option) Casting Approved AD2000‐WO Thread: ASME B1.20.1 BS21.DIN2999/259, ISO228‐1 Inspection Testing: AP1598, EN12266

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Pipes, Pumps and Valves Africa - May/Jun 2018

INVAL Wafer Butterfly Valve SPECIFICATIONS 16 Bar Wafer disc available in Nickel‐plated, Cast Iron, Bonze or CF8M (316) Stainless Steel Epoxy powder coated body Blow out proof Stainless Steel Stem Integral EPDM cartridge type replaceable Liner Lever or Gearbox operated Semi or Fully Lugged

INVINCIBLE VALVES (PTY) LTD

33 Shaft Road, Knights GERMISTON T)+27 11 822 1777 / +27 11 027 1831 E)sales@invalve.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

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Diaphragm Valve "KB" Type "KB" Type Diaphragm Valve has a smooth non‐turbulent body design to resist erosive affects of corrosive/abrasive line media.

Full bore concept is designed for minimum flow resistance.

Flexible Diaphragm ensures leak tightness even when solids, powders and dry media are present.

SPECIFICATIONS Handwheel ‐ Comfortable, easy to use for fast operation Other Methods of Operation ‐ Fast acting levers, pneumatic & electric actuators Indication ‐ Std to DN150 Optional >DN200.

Stem ‐ Designed to reduce friction for low operating torque.

Sealing ‐ Operating mechanism (stem & compressor) isolated from service and atmosphere.

Diaphragm ‐ Designed to assist flow & isolate working parts from fluid line Strong and resilient, giving positive shutoff Body End Connections ‐ Screwed, flanged Diaphragm Materials ‐ Natural & Synthetic rubbers, nitrile, butyl, viton and PTFE faced All give maximum processing security & where required food industry standards of hygiene. Special diaphragms produced for fire fighting, tank cleaning and washdeck services to comply with International standards.

INVINCIBLE VALVES (PTY) LTD

33 Shaft Road, Knights GERMISTON T)+27 11 822 1777 / +27 11 027 1831 E)enquiries@invalve.co.za

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Pipes, Pumps and Valves Africa - May/Jun 2018

New wireless pressure gauge app increases convenience and safety

E

merson announces a new Plantweb Insight application for wireless pressure gauges that displays data in an easy-to-understand dashboard for maintenance leads and instrumentation and electrical (I&E) personnel. An entire suite of Plantweb Insight applications collectively helps users quickly make sense of plant data and drive overall enterprise profitability.

This Industrial Internet of Things (IIoT) application delivers field data from a fleet of wireless pressure gauges as frequently as once per minute. By keeping operators updated on changing conditions remotely, the app allows personnel to make fewer manual rounds and minimize their exposure to hazardous areas.

of IIoT innovations to extend the benefits of automation beyond process control to the entire enterprise, improving operations, strengthening decision-making, and institutionalizing best-practices.

Easily integrated with a variety of WirelessHART gauges and remote field sensors, Plantweb Insight applications combine continuous, real-time data provided by Emerson’s Pervasive Sensing™ strategies with predictive analytics to give maintenance and operations personnel actionable, upto-date process information in any location, improving reliability, safety, production, and energy management.

PUMPS

Emerson’s Plantweb™ Insight application provides streamlined view of networked Rosemount™ wireless pressure gauges, helping maintenance personnel stay informed and safe

Contact Rob Smith, Emerson Automation Solutions, Tel: +27 (0) 11 451 3700, Rob.Smith@emerson.com, www.Emerson.com

The gauge itself, the industry’s first WirelessHART® pressure gauge, utilizes industry-proven Rosemount pressure sensor technology to deliver reliable pressure readings. It provides up to 150x overpressure protection compared to traditional gauges using bourdon tube technology, and two layers of process isolation for a safer field environment. The gauge, which has a 10-year life, also reduces maintenance costs by eliminating common weak points found in mechanical gauges.

The new application is the latest addition to Emerson’s Plantweb™ digital ecosystem, a scalable portfolio of technologies, software, and services that take advantage Pipes, Pumps and Valves Africa - May/Jun 2018

27

Breaking barriers, connecting ideas PUMPS

Schneider Electric’s international knowledge on the water and wastewater industry and its ability to break barriers and connect ideas will be demonstrated this at the Water Institute of Southern Africa (WISA) biennial conference and exhibition.

• • •

Solar water pumps Reducing pump electricity usage by 20% Harnessing IIoT in water utilities

“The theme, ‘Breaking barriers, Connecting ideas’ is an integral part of Schneider Electric’s ethos, working as we do across both the developed and developing worlds,” says Marc Ramsay, Vice President for the Industry Business Unit at Schneider Electric South Africa.

“We have adapted our systems to meet those challenges found on the ground at water utilities and further upstream. For instance, the Villaya Solar Water Pumping Solution is a fully automatic system, designed to provide water at affordable cost for people with limited or no access to electricity. It uses the most advanced solar variable speed drive to regulate the speed of a 3-phase AC motor depending upon the solar energy available from an array of solar panels. The solar drive converts the DC voltage input to a 3-phase AC output with variable voltage and frequency.

“Another often overlooked issue is the pump system at many of the older pump stations, which have not been redesigned for many years. Pumps represent one of the largest asset expenditures for a utility but also offer the greatest potential for savings. Addressing asset management, energy management and sustainability is of course crucial but our research has shown that 75% of pump systems are oversized, many by more than 20%. Electricity costs account for 40% of the total cost of ownership (TCO) of a pump.

“The solution for the issues lies in Smart Pumping (also termed as Intelligent Pumping) along with the use of the Industrial Internet of Things (IIoT). These approaches result in energy savings, increased equipment lifetime and maintenance cost reductions, by providing higher quality and precise data.

“A ‘Smart Pumping’ system has the ability to combine greater efficiencies with sensors and software to regulate and control flow and pressure. IIoT incorporates machine learning and big data technology, harnessing sensor data, machine-to-machine (M2M) communication and automation technologies that have existed in industrial settings for years.

“We recommend that utility owners start small, start smart and start now by introducing energy measuring devices into system architectures. They can use controllers with intelligent applications for better protection and reduced commissioning time, while following guidelines for standards as set by local and global organisations.

They can replace fixed speed pumps with variable speed pumps and for ‘smart’ visibility of pumping systems, use remote monitoring for maintenance and energy efficiency.

“The smartest water utilities have figured out the power of the pump – transforming this costly and energy-intensive process can put you on the roadmap to sustainability,” concludes Ramsey.

Contact Schneider Electric, Tel: +27 (0) 11 254-6400, jenny.van-rooyen@schneider-electric.com

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Pipes, Pumps and Valves Africa - May/Jun 2018

KSB Etanorm 210x275.indd 1

2016/09/23 12:22 P

Pipes, Pumps and Valves Africa - May/Jun 2018

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Coating solution extends casing life span and saves costs PUMPS

Surcotec’s metal spray coating solution has extended the life span of a Labyrinth casing thereby avoiding the need for costly replacement, leading to significant cost savings for key customer, Eskom, at its Palmiet Hydro installation.

T

he power station is located near Grabouw in the Western Cape on the Palmiet River, 2km upstream of the Kogelberg Dam wall. The Palmiet Pumped Storage Scheme is part of a water transfer system. For generating purposes, water is released from the upper Rockview Dam to the two reversible pump turbines located 60 metres below ground level.

Surcotec was requested by Eskom to submit a recommendation and procedure to prepare and coat the top runner Labyrinth on unit 1 of the Turbine at Palmiet. “The casing base material in the Labyrinth area of the turbine which is approximately three metres in diameter, was showing signs of accelerated erosion due to a design issue,” explains Ian Walsh, Sales and Marketing Manager at Surcotec, a surface coating

30

Pipes, Pumps and Valves Africa - May/Jun 2018

technology specialist based in the Western Cape.

“Consequently, the customer was experiencing severe material losses in the Labyrinth area and was forced to consider a complete and costly casing replacement.”

The Labyrinth area of the casing is an integral part and could therefore not be removed for repair without dismantling the complete unit which would have been both a cost-prohibitive and logistically impractical exercise. Walsh adds that an in-situ weld repair was also not a viable option due to the possibility of distortion.

Surcotec recommended metal spray as the most practical and cost-effective solution. “With the correct alloy being applied the coating would not only be an ideal repair solution but will also be an improvement on the original part,” notes Walsh.

With only a short window of opportunity during the plant’s scheduled outage, the Surcotec site team was mobilised and established a contained work area. With limited access and given that the work area is 70 metres below ground level, several logistical challenges had to be overcome prior to commencing with the repair.

PUMPS

CP 7

CP S MP PU

CS X

MP PU

Contact Dr Jan Lourens, Managing Director, Thermaspray, Tel: +27 (11) 316 6520/8/9, jlourens@thermaspray.co.za

E DL N

Thermaspray, in a joint venture with Cape Townbased Surcotec, offers an extensive portfolio of engineering and thermal spray coating solutions that extend component life cycles to assist OEM and end-user clients across southern Africa in reducing costs and increasing production. The companies’ world-class quality wear- and corrosion-resistant thermal spray coatings, Plasma Transferred Arc (PTA) cladding and Polymer coatings (in partnership with Plasma Coatings USA and Diamant Metallplastic Germany) are augmented by a host of specialised allied services

• Horizontal Split Water Pumps • CPX/HMX Type • SP Type • Vertical Turbine • CPW Type • CSR Type

MP PU

Surcotec is a Level 1B-BBEE compliant company and the oldest established spray supplier in the Western Cape. “Our proudly earned reputation for being the only reliable spray supplier in the Province has positioned Surcotec as a preferred coating supplier to customers like Eskom,” concludes Walsh.

HM MP PU

Surcotec’s metal spray coating not only prevented the need for replacement of an expensive part but also extended the life of the repaired part beyond its design resulting in substantial savings for Eskom. Surcotec was subsequently invited to apply the coating to unit 2 at the same installation which Walsh reports was again completed to the customer’s completesatisfaction.

VERTICAL SP I

Our range of pump products include: • CP/CPO Series • CP7 Type • Vertical Spindle/ Cantilever Pump • HM Process Pumps • CSW Type • CSY Type • Process Pumps

P -C

According to Walsh, when the turbine was opened for routine inspection twelve months later, the Labyrinth area was found to be in perfect condition with no loss of material. “This was particularly impressive given the fact that prior to the coating application, the customer was experiencing severe material losses on the Labyrinth area over the same period.”

C

PO

Walsh confirms that the selection and deposition of specialised alloys using the twin wire arc system was applied with great success. “The turbine was returned to the customer on budget and within the agreed time frame.”

Over 25 years of experience in designing and manufacturing a complete range of centrifugal pumps for a broad spectrum CSO/CP of industrial, process and general applications.

www .sa meng.co.za

Due to the possibility of the blast process interfering with adjacent parts, Surcotec utilised a blasting process known as ‘sponge blasting’ to contain the media and stop any ingress to sensitive areas of the turbine whilst still ensuring that the correct preparation and blast profile was obtained.

Providing customised pump solutions to various industries

Pump design techniques that ensure our pumps are manufactured to last

High performance - high quality products, excellent service

Alloys to suit all applications Proud Manufacturers of SAMCO® Pumps

Pipes, Pumps and Valves Africa - May/Jun 2018

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PUMPS

Integrated Pump Rental adds stainless steel submersibles to rental fleet Staying ahead in an industry as competitive as pump rental requires a comprehensive understanding of dewatering application requirements. It also necessitates a pump rental fleet that can meet the needs of different market sectors.

I

ntegrated Pump Rental recently bolstered its pump rental fleet with the inclusion of a range of stainless steel submersible pumps. Managing director, Lee Vine says this was done to specifically cater for applications where there are increased levels of acidity in the water.

“Acid water drainage on mines is common today, and these extremely harsh dewatering applications require an appropriate pumping solution which is why we have added Faggiolati stainless steel slurry pumps to our rental fleet,” Vine says.

Constructed from 316 stainless steel, the Faggiolati pump is engineered to operate in extremely harsh environments including handling highly corrosive water and sludges.

Significantly, these high performance pumps are able to withstand acidic water even when it contains high concentrations of metals and sulphates as well as slurries containing abrasive particles and a high content of solids.

Integrated Pump Rental recently bolstered its pump rental fleet with the inclusion of a range of stainless steel submersible pumps.

“Dewatering, whether on surface or underground, requires absolute reliability and this has become the watchword for our pump rental fleet; all pump brands have been selected for their performance capabilities as well as their robust construction,” Vine says.

Integrated Pump Rental has an established reputation for providing fit-for-purpose dewatering solutions to its customer base, and the company operates an extensive fleet of pumps that caters for all type of application requirements. The company offers a total round-the-clock pumping solution, and takes complete responsibility for all maintenance of pumps on site. This includes the keeping of a complete maintenance record which facilitates proactive, scheduled maintenance and optimum uptime for the pump installation.

Included in the rental fleet are the wellknown Grindex submersible drainage and 32

Pipes, Pumps and Valves Africa - May/Jun 2018

Integrated Pump Rental has introduced the Faggiolati stainless pump to its rental fleet.

dewatering pumps, the locally engineered and manufactured SlurrySucker dredge units, the SlurryBlaster hydro mining equipment solution and Sykes dewatering pumps.

Contact Lee Vine, Integrated Pump Rental, Tel :+27 (0) 72 627 6350, lee@pumprental.co.za, www.pumprental.co.za

Spanish pump-manufacturer visit proves a success South Africa’s Vesconite reflects on a recent trip to Spain

A

recent trip to the Spanish pump manufacturers by bushings and wear material supplier Vesconite has resulted in several large orders of bushing material.

PUMPS

This is according to Vesconite technical sales representative Phillip de Villiers, who is spearheading the company’s European pumps business.

“This month we received orders for considerable sums,” he notes.

“One company ordered stock material of extra-large bushings that it will machine into wear rings for its own use, while another ordered bushing material to machine into bushings for its original-equipment-manufacturer pumps.”

De Villiers, together with European branch head Matthew Davey and company Chairperson Dr. Jean-Patrick Leger, visited four large Spanish pump companies in late March 2018.

These companies were located throughout Spain, so the visit involved travel from Valencia, in the south of the country, through to Bilbao, in the north of the country.

“The Spanish pump industry is sizeable and the companies we visited serve both the local Spanish market and the global market,” De Villiers comments.

“The companies appreciated our input and our assistance with technical enquiries. They were also impressed that our CEO visited and was able to provide additional insight into our bushings and how they would prolong the life of pumps.”

The Spanish companies were enthusiastic about the use of the low-friction self-lubricating polymer Vesconite Hilube in various pumps, and spoke passionately about

Vesconite technical sales representative Phillip de Villiers, who is spearheading the company’s European pumps business

their production of vertical turbine pumps for Spanish desalination plants, among other projects.

De Villiers is excited about the results from the March Spanish visit, which builds on a previous successful visit to Spanish pump manufacturers in July 2017.

Contact: Phillip de Villiers, Tel: +27 (0) 11 616 1111

Pompetravaini, a market leader in the manufacture of Liquid Ring Vacuum Pumps – A&VT are the Sole Agents for Southern Africa.

SALES, SPARES AND REPAIRS

info@vactech.co.za

0861 VACTEC (822 832)

www.vactech.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

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VALVES

eDART slurry control valves meet exacting demands of advanced level control on flotation machines In order to improve the froth level control at a flotation concentrator in Rustenburg, eDART was recently commissioned to replace the froth level control valves on the secondary cleaner.

F

roth level control is extremely important on flotation machines as it directly relates to efficiency of the plant. If the froth level is too deep then the grade of the concentrate will increase, and at the same time recovery drops off. When the froth level is too shallow the recovery will improve but a lot more concentrate will be produced at a lower grade.

The aim is to produce concentrate at the optimum grade, which will result in the highest efficiency of the plant.

From a control point of view, the most efficient point of a control loop is when the level is on setpoint and there is no error. Where error is recorded there is an opportunity of improving the control. The Rustenburg customer is using an advanced controller to control the froth level at the flotation plant. As flotation froth levels are influenced by more than one variable, a simple PID controller cannot offer the good control results required which more modern controllers do.

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Pipes, Pumps and Valves Africa - May/Jun 2018

VALVES

A human operator will give the setpoint a step change and then leave it constant for a long period, and the signature of the more advanced controller is the gradual change to the setpoint point, as seen in the trend chart.

The setpoint is shown by the black line while the level (or Process Variable, PV) is the red line.

As the advanced controller considers multiple variables in calculating the valve position, it can respond a lot more quickly than a standard PID controller. If the output, or valve signal, represented by the blue line, is compared to the level signal (PV) represented by the red line, it can be seen that the ratio of the output signal to the process signal is approximately 2 to 1; this is the gain of the loop.

With conventional PID controllers the gain of the loop is seldom greater than 1. With the use of the advanced controller the valve responds at least twice as fast to bring the level back to setpoint.

This is one of the major advantages of advanced controllers over standard PID controllers, in that they are 100% – 200% faster than the best a simple PID controller can achieve. If the gain on any control loop is too high, it will lead to instability of the control loop, as the level will overshoot/undershoot the setpoint.

The final control element, or valve in this case, in any control loop is the limiting factor on how good the control can be. The valve has to be correctly sized. Looking at this trend it can be seen that the valve is approximately 45% open on average to maintain the control which is evidence that the valve is correctly sized for the application. Any valve problems will result in a drop off in performance of the control loop. As the advanced controller is adjusting the setpoint continually so the control valve is responding rapidly to keep this control loop in control.

eDART has developed their range of slurry control valves to meet the exacting demands of modern advanced controllers, the end result being vastly improved plant performance for their customers.

Contact: eDART, Tel: +27 (0) 11 823 6620, sales@edart.co.za Pipes, Pumps and Valves Africa - May/Jun 2018

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Tank blanketing effectively prevents fires in flammable liquid storage tanks VALVES

The storage of flammable liquids carries with it the need to put in place fire protection mechanisms.

Tank blanketing is deemed one of the best and effective ways of preventing fires in flammable liquid storage tanks by means of controlling the formation of explosive vapour or air mixtures above the liquid surface.

The threat of fires in flammable liquid storage tanks is not far-fetched. Fires can occur at any time for many reasons.

Therefore, it is vital to safeguard both human life and material assets from the destructive effects of fires. Tank blanketing valves provide an effective means of preventing and controlling explosions in flammable liquid storage tanks.

Energas Technologies Lavenda Sekwadi Process Engineer

Lavenda Sekwadi, Process Engineer at Energas Technologies, explains that blanketing can reduce evaporation of the stored product and protects the tank from structural corrosion damage caused by air and moisture. He adds that contaminants that may enter the vapour space to cause product degradation are prevented.

“It is a control practice that is widely used in the chemical, pharmaceutical, food processing and petroleum refining industries due to its potential to improve safety,” explains Sekwadi.

Understanding tank blanketing The operational principle of the blanketing valve is simple; a blanket of inert gas in the tank’s vapour space prevents atmospheric air from entering the tank. “Inert gas is admitted only during the inbreathing cycles (vacuum cycles). An inbreathing cycle occurs when liquid is being withdrawn from a tank or when vapours condense in the tank as a result of a decrease in temperature,” explains Sekwadi. “The amount of inert gas required for a specific application is dependent on the maximum inbreathing demand and the maximum emptying rate.”

Nitrogen is the most commonly used gas for blanketing, because, as Sekwadi explains, it is inert, widely available and relatively low-priced. “Other gases such as carbon dioxide or argon are also used on occasions. However, carbon dioxide is more reactive and argon is generally more expensive. The selection of an inert gas for a particular process is based on several properties, including flammability, non-contamination, chemically inactive, non-toxic, availability of large quantities of use and cost effectiveness,” says Sekwadi.

How it works Typically, a blanketing valve is mounted on top of a storage tank along with a pressure/vacuum vent and an emergency 36

Pipes, Pumps and Valves Africa - May/Jun 2018

pressure relief vent. The blanketing valve provides primary vacuum relief for the tank. It opens and supplies gas to the vapour space when pressure decreases to the valve’s set point.

“When vapour space pressure increases, the valve reseals.

The pressure/vacuum relief vent is sized to take care of overpressure and vacuum conditions when nitrogen blanketing valve is out of service,” he explains, adding that the pressure/vacuum relief vent is sized to take care of overpressure and vacuum conditions when tank blanketing valve is out of service.

The pressure setting of the vent is set slightly higher than the blanketing valve setting but below the maximum pressure the tank can withstand. Similarly, the vacuum setting is set higher than the normal operating vacuum but below the maximum vacuum pressure the tank can withstand.

Since the failure of an inert gas poses the danger of a fire, a flame arrester can be mounted upstream of the pressure/ vacuum vent to prevent fire propagation into the tank. An emergency pressure relief vent should be considered for the relief of excessive pressure in the case of fire as per API 2000.

Preferred supplier Tank blanketing has always been a staple in Energas Technologies’ range of safety products. The leading supplier of high-end and specialised equipment to the oil and gas industries in Southern Africa has stocked Protectoseal’s range of blanketing valves for the past 12 years.

“There are two types of blanketing valves depending on the actual process requirements: 1” Pilot operated (for high flow rate applications) and 0.5” spring operated (for low flow applications) blanketing valves. Energas Technologies can assist with sizing calculations to determine the most suitable solution for the application,” says Sekwadi.

VALVES

In 2016, Energas added Protectoseal’s Series 10 2” Tank Blanketing Valve to its range, which provided capabilities that the existing Series 20 1” could not offer in larger flow applications. The Protectoseal Series 10 2” Tank Blanketing Valve boasts a host of key features and benefits. The valve is specifically designed for tank blanketing and its pilot-operated design offers a very tight operating band. It has the most compact design and fewest external connections of any other pilot-operated valve on the market. With uptime in mind, it is also field serviceable.

The valve is available in a range of a materials. The metal parts are available in 316 stainless steel and the seals and gaskets are available in Buna-N, Neo prene, Viton®, EPDM, Chemraz® or Kalrez®.

In conclusion, Sekwadi advises that safety systems, especially as far as prevention of fires in flammable liquid storage tanks, are of paramount significance, and it is always advisable to source products of this nature from reputable suppliers such as Energas Technologies.

Contact Laetitia Botha, Energas Technologies, Tel: +27 (0)11 397 6809, laetitia@energas.co.za, www.energas.co.za

Type SAFE-HF plug valve AZ-Armaturen’s new 2-way “Type SAFE-HF” plug valve with independent packing and plug adjustment arrangement – which was recently launched, is advantageous for use in Hydrofluoric Acid Alkylation operations.

Key design features and characteristics, include: • • • • • • • •

Full Monel construction (body, plug, and cover), Fire safe with advanced safety stem sealing packing, HF detection paint coating, for leakage identification, Easily accessible plug adjustment, Maintenance free / self-lubricating, Free of cavities, Actuator mounting flange according to DIN ISO 5211 Suitable for HF Pipe Classes: HF1, HF10, HF2-20

Our design and material specifications in-conjunction with our manufacturing and testing procedures, are in accordance with Pressure Equipment Directive (PED) 2014/68/EU – Module H. Contact A-Z Armaturen, Tel: +27 (0)11-397-3665, info@az-armaturen.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

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CAMINEX, Zambia’s premier Copperbelt agricultural, mining and industrial trade expo, took place at the Kitwe Showgrounds in Kitwe, Zambia, from 5-7 June, and showcased the latest in products, machinery, technologies and services that these and related industries can offer.

CAMINEX is an important trade platform that is supported by government and industry associations, CAMINEX 2018 brought these industries together through an industry hub where business transactions took place and where valuable stakeholder partnerships were developed.

“It’s becoming ever more important to stay up to date with industry trends and cuttingedge technologies, and how they are influencing the way we do business,” says London Mwafulilwa, Chairman of Copperbelt Mining, Agricultural and Commercial Show Society (CACSS), co-organisers of the event. “It’s also crucial for the industry to keep informed about latest developments and the increasing drive towards environmentally sustainable economic growth, which has underpinned some great innovations. Our theme for this year - Repositioning for Environmentally Sustainable Economic Growth - supports this drive.”

Visitors had the opportunity to network with industry professionals, get advice from technical experts, view machinery demonstrations and benefit from the knowledge and skills shared at the daily free-to-attend business seminars.

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Pipes, Pumps and Valves Africa - May/Jun 2018

Lifting Africa - May/Jun 2018

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SYSTEM CONSTRUCTION

The system consists of three main components: Control centre for the remote control and monitoring of pump installation with, connection to control line, Internet or mobile communications Control for monitoring of the pump, including communication module for data exchange between the integrated microcontroller module (MCM) of the submersible pumps motor and Control centre. The aboveground area consists of diverse control units Submersible motor pump with integrated MCM included transmitter

DIAGRAM OF COMPLETE SYSTEM

POSITION OF EUPSIM INTEGRATED MICROCONTROLLER FITTED ON AN ODDESSE SUBMERSIBLE MOTOR

e

FOR FURTHER INFORMATION CONTACT

370 Kruger Road, Strijdom Park, Randburg, South Africa Tel: (011) 792 9550 / 1 / 2 Fax: (011) 792 9553 E-mail:eeeaman@mweb.co.za Website: ernestee.co.za Pipes, Pumps and Valves Africa - May/Jun 2018

39

Inspection that took 5 months now completed in a single day PIPES

Pure Technologies completes longest single day pipeline inspection to date using PipeDiver® technology.

F

rom the Colorado town of Buena Vista, the views of the distant Rocky Mountains are deceptively stunning. Up close, the terrain is hilly, inhospitable and extremely remote. With no roads and little access, this is helicopter, snowmobile and 4-wheel-drive country. As might be expected, the logistics of inspecting a water pipeline that runs through this unforgiving territory makes the inspection extremely time consuming and hazardous for everyone.

Until now.

For the Homestake Water Project, the manned electromagnetic (EM) inspection that previously shut down the critical 44-mile (77 km) pipeline for at least one month annually over five years, was now completed in one day, thanks in part to an enhanced PipeDiver® EM tool developed by Pure Technologies.

An early start to a long but successful day.

From 5 months using tradition dewatering and manned entries to a single day. Now that’s progress.

“Amazing,” said Tom Hankins, Supervisor for Homestake Water Project, in describing the Otero pipeline inspection run. “With the PipeDiver tool travelling through the pipeline at three feet per second, we can do what we previously did in five months, [over a five-year period] in just one day…”

Background Colorado Springs and the City of Aurora are the second and third largest communities in the state of Colorado. The Homestake Water Project (Homestake) is a joint venture between the two cities to collect and transport water from the mountains to the communities that serve almost 1 million people.

Getting the star of the show (aka. PipeDiver) ready.

The Pure Technologies team mobilizing for the day ahead.

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Pipes, Pumps and Valves Africa - May/Jun 2018

The Homestake Water Project includes a collection system, a series of reservoirs, a tunnel that brings water through the continental divide and a pump station that delivers up to 120 million gallons of water per day through the pipe.

One of the pipelines managed by Homestake includes the 44mile Otero Discharge Pipeline, a large diameter (66-inch) noncylinder prestressed concrete pipeline (PCP) built in the early 60s by the Cities of Aurora and Colorado Springs. In the past several years, the pipeline has suffered a few major breaks and non-surfacing leaks. The critical pipeline, which provides 60 to 70 percent of Colorado Springs’ and Aurora’s water, is in a high-risk location, with few roads and steep inclines, and recently the pipeline has suffered catastrophic failures.

Variety of methods used to inspect the pipeline

PIPES

Over the past ten years, Homestake has deployed a variety of methods to inspect the pipeline. This includes visual, above ground, manned electromagnetic cart, and inline leak detection using the SmartBall® platform, of which Homestake has been a licensee for more than six years. Homestake conducts their own SmartBall inspections, analysis and leak verification of the pipelines they manage.

Final deliberations before the big event.

Beginning ten years ago, over a five-year period, Homestake shut down the Otero Discharge Pipeline each September to perform a condition assessment on certain sections of the pipeline. The shutdown included two weeks just to drain the pipeline to prepare it for a manned electromagnetic (EM) inspection tool, and another two weeks to perform the inspection.

“This task is hazardous,” says Tom Hankins, “not just to the mobilization crews, but also to the inspection teams inside the pipe who required rope support on the steep slopes.”

Because Homestake enjoyed a good relationship with Pure Technologies and knew of its innovative inspection technologies, when Pure broached the subject of using an enhanced PipeDiver electromagnetic tool on the remote 44mile Otero District pipeline, without the need for dewatering, Homestake became keenly interested. Especially as Pure Technologies was able to develop a new exciter for the PipeDiver tool, which could be used on non-cylinder PCP and deliver higher resolution data than in the past.

Pipediver platform collects em data and operates while pipeline remains in service The PipeDiver platform is a versatile, free-swimming condition assessment tool that collects electromagnetic data on the prestressing wires, and operates while the pipeline remains in service. The tool has specialized electromagnetic sensors to identify and locate prestressing wire wraps, which are the main structural components of PCP and PCCP, and the primary indicators that the pipe will fail.

No drama, no fuss… just a job done well.

into the inspection logistics, and Pure Technologies worked closely with Homestake to ensure existing facilities could be used for the tool’s insertion and extraction. Homestake also facilitated a calibration with the new tool prior to inspection, which would help with wire break identification and quantification.

Safety a major issue propelling the inspection

And so the planning began. The purpose of Homestake long distance PipeDiver inspection was to locate and quantify the amount of the prestressing wire wraps on all 44 miles in one run, identify the individual pipe sections with distress growth, and drive repair/replacement decisions. A long, tall order, indeed.

In order to inspect the largest portion of the Otero Discharge Pipeline, the PipeDiver was inserted into a surge tower located 600 feet above the pipeline. This also required a rope crew and a fully-suited diver with an umbilical line to rappel via a sled 600 feet down the 66-inch pipe in order to align the PipeDiver in the proper direction. Once the tool was set in the right direction, the rope team safely hauled up the diver and cart.

High-risk inspection not without its challenges

The pumps were turned on, and the PipeDiver sailed off without a hitch.

The proposed inspection was a technically challenging, highrisk project. The teams put more than six months of planning

“Safety is a major issue because of the rough terrain as the pipeline slices through the Rocky Mountains with lots of hills, Pipes, Pumps and Valves Africa - May/Jun 2018

41

PIPES

Technology-based, people-driven.

highs and lows, which required lots of ropes to get in and out, with the crews experiencing slips and falls…this way the inspection is conducted inside pipe, which is much safer…it does a better job.”

Tom Vidmar, Superintendent of the Homestake Water Project In addition, the mobilization team installed 55 tracking sensors along the 44-mile pipeline route to monitor the PipeDiver tool as it traversed the inhospitable and extremely remote pipeline alignment.

Recognized as longest single day pipediver tool run in the history of pure technologies Contingency plans were developed in case the PipeDiver tool got hung up along the 44-mile route, but in the end, less than

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Pipes, Pumps and Valves Africa - May/Jun 2018

24 hours later, the tool successfully sailed into the surge pond, to the applause of the Homestake and Pure crews.

The PipeDiver tool was removed from the surge pond and the pipeline data retrieved.

In the end, the PipeDiver electromagnetic inspection, at 44 miles long, was recognized as longest single day run for the tool in the history of Pure Technologies. With Pure Technologies now analyzing the electromagnetic data, Homestake will soon have information on the location and amount of broken prestressing wires on all 44 miles of the pipeline, which in turn, will drive repair/replacement decisions for the proactive water authority. All in all, not bad for a day’s work.

Contact Lorraine Smart, Xylem Water Solutions, Tel: +27 (0) 11 966-9300, lorraine.smart@xyleminc.com

SUBSTANTIAL NAMPO ATTENDANCE SHOWS PRODUCERS STILL HAVE HOPE

A new record attendance figure achieved during NAMPO 2018 and the feedback from the exhibitors that they mainly did good business testify to the optimism of the agricultural sector despite all the uncertainties facing South African producers.

This is the view of Jannie de Villiers, CEO of Grain SA, after the organisation’s 52nd NAMPO Harvest Day, which was presented successfully during the past week. According to ticket sales, 82 817 visitors streamed through the gates to visit the 746 exhibitors and to enjoy the family atmosphere and farm hospitality that are so unique to the Harvest Day. The private airstrip at NAMPO Park handled 361 aeroplanes and helicopters, ferrying a variety of visitors there, with ease.

“The growing interest in the NAMPO Harvest Day is encouraging, and it proves that agriculture is still alive and well. To each exhibitor, visitor and staff member: thank you that you came to enjoy the event with us and helped to write the NAMPO story with us. A personal highlight of each NAMPO is meeting various people, talking and building relationships. Those relationships strengthen the hope on which agriculture is built. ‘It is also noteworthy that the number of non-agriculture visitors and numerous media representatives from outside the agricultural media have increased. From formal and informal discussions it is clear that they come to NAMPO because they like it there. The growing interest from black farmers in the show is also a definite plus to Grain SA,” De Villiers said.

Foreign exhibitors’ interest in NAMPO as a platform for reaching the rest of Africa continues. Approximately 76 international exhibitors were housed in eight international pavilions – which each involved at least eight exhibitors from their country as part of their exhibitions.

Representatives from Israel, Poland, England, America, India, France, Italy, Denmark, China, Turkey and Russia participated in the Harvest Day.

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PUMPS HORIZONTAL SPLIT CASE PUMPS

AIR OPERATED DOUBLE DIAPHRAGM PUMPS

Unique Engineering Air & Vacuum Technologies T: +27 (0) 861 822-832) +27 (0) 11 318 3241/2/3/4/5 F: +27 (0) 86 522-9188 E: burnm@vactech.co.za W: www.vactech.co.za

T: +27 (0) 11 826 6111 F: +27 (0) 11 826 6162 E: sales@uniqueeng.co.za W: www.uniqueeng.co.za

SAM Engineering T: +27 (0) 11 823-4250 F: +27 (0) 11 823-4943 E: sales@sameng.co.za W: www.sameng.co.za

SLURRY PUMPS

C.R.I Pumps S.A. (Pty) Ltd T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri@cripumps.co.za W: www.cripumps.co.za

METERING PUMPS

ANSI PROCESS PUMPS

SAM Engineering T: +27 (0) 11 823-4250 F: +27 (0) 11 823-4943 E: sales@sameng.co.za W: www.sameng.co.za BOREHOLE PUMPS

Monitor Pumps & Systems T: +27 (0) 11 618-3860 F: +27 (0) 11 614-0021 E: sales@monitorpumps.co.za W: www.monitorpumps.co.za END SUCTION PUMPS

APE Pumps T: +27 (0) 11 824-4810 F: +27 (0) 11 824-2770 E: apepumps@mweb.co.za W: www.apepumps.co.za

FLSmidth Krebs T: +27 (0) 10 210-4750 E: willie.vanwyk@flsmidth.com W: www.flsmidth.com

MULTISTAGE PUMPS

Pump and Abrasion Technologies Ernest Electro Engineering T: +27 (0) 11 792 9550 E: eeeaman@mweb.co.za W: www.ernestee.co.za

SAM Engineering T: +27 (0) 11 823-4250 F: +27 (0) 11 823-4943 E: sales@sameng.co.za W: www.sameng.co.za FIRE PUMPS

Agrico T: +27 (0) 21 950 4111 F: +27 (0) 21 950 4208 E: alfred.andrag@agrico.co.za W: www.agrico.co.za

T: +27 (0) 12 666-0904/5 E: sales@pumpab.co.za W: www.pumpandabrasion.co.za SUBMERSIBLE PUMPS

PLUNGER PUMPS

Unique Engineering T: +27 (0) 11 826 6111 F: +27 (0) 11 826 6162 E: sales@uniqueeng.co.za W: www.uniqueeng.co.za CENTRIFUGAL PUMPS

Braybar Pumps (Pty) Ltd T: +27 (0) 11 393-7177/79 F: +27 (0) 86 425-7595 E: sales@braybarpumps.co.za W: www.braybarpumps.co.za

Ernest Electro Engineering T: +27 (0) 11 792 9550 E: eeeaman@mweb.co.za W: www.ernestee.co.z

Horma Pumps SPP Pumps SA (Pty) Ltd T: +27 (0) 11 393-7179 F: +27 (0) 86 425-7595 E: sales@spppumps.co.za W: www.spppumps.com FLEXIBLE IMPELLER PUMPS

CHICK HENDERSON Chick Henderson T: +27 (0) 11 624-1400 F: +27 (0) 624-1432 E: rob@chickhenderson.co.za W: www.chickhenderson.co.za HIGH PRESSURE PUMPS

Hawk High Pressure Pumps T: +27 (0) 031 274-8555 +27 (0) 10 010-0144 F: +27 (0) 31 205-4332 +27 (0) 11 822-2868 E: sales@hawkpumps.co.za W: www.hawkpumps.co.za POSITIVE DISPLACEMENT PUMPS

CHICK HENDERSON Chick Henderson T: +27 (0) 11 624-1400 F: +27 (0) 624-1432 E: rob@chickhenderson.co.za W: www.chickhenderson.co.za

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com 44

T: +27 (0) 031 274-8555 +27 (0) 10 010-0144 F: +27 (0) 31 205-4332 +27 (0) 11 822-2868 E: sales@hawkpumps.co.za W: www.hawkpumps.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

Stewarts & Lloyds (Pty) Ltd T: +27 (0) 11 917-0778 F: +27 (0) 11 917-0769 E: peterk@sltrading.co.za W: www.stewartsandlloyds.co.za

Walter Meano Engineering VersaFlo VSE Pumps

Hawk High Pressure Pumps KSB (Pty) Ltd

T: +27 (0) 11 452-4300 E: sales@horma.co.za W: www.horma.co.za

Unique Engineering T: +27 (0) 11 826-6111 F: +27 (0) 11 826-6162 E: sales@uniqueeng.co.za W: www.uniqueeng.co.za

T: +27 (0) 11 873-8620 F: +27 (0) 11 825-1401 E: wme@mweb.co.za W: www.versaflo.co.za

PUMPS

VALVES AIR VALVES

TRASH PUMPS

SAM Engineering C.R.I Pumps S.A. (Pty) Ltd T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri@cripumps.co.za W: www.cripumps.co.za

T: +27 (0) 11 823-4250 F: +27 (0) 11 823-4943 E: sales@sameng.co.za W: www.sameng.co.za VERTICAL TURBINE PUMPS

VACUUM PUMPS

Air & Vacuum Technologies T: +27 (0) 861 822-832) +27 (0) 11 318 3241/2/3/4/5 F: +27 (0) 86 522-9188 E: burnm@vactech.co.za W: www.vactech.co.za

Atlas Copco T: +27 (0) 11 318 3241/2/3/4/5 F: +27 (0) 86 522-9188 E: burnm@vactech.co.za W: www.vactech.co.za VERTICAL SUMP PUMPS

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com

RNE Pumps (Pty) Ltd T: +27 (0) 11 452-3528 F: +27 (0) 82 612-0358 E: mark@rnepumps.com W: www.rnepumps.com

Tectra Automation T: +27 (0) 11 971-9400 F: +27 (0) 11 971-9440 E: malan.bosman@tectra.co.za W: www.hytecgroup.co.za BALL VALVES

APE Pumps T: +27 (0) 11 824-4810 F: +27 (0) 11 824-2770 E: apepumps@mweb.co.za W: www.apepumps.co.za

SAMCO PUMPS (Pty) Ltd T: +27 35 751-1202 F: +27 35 751-1204 E: joffre@samcopumps.com W: www.samcopumps.com WELL PUMPS

C.R.I Pumps S.A. (Pty) Ltd KSB (Pty) Ltd

Tectra Automation

T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri@cripumps.co.za W: www.cripumps.co.za

Mine Track & Tools (Pty) Ltd T: +27 (0) 11 412 4536/1665 E: info@minetrack.co.za W: www.minetrack.co.za

Valcon Valve & Controls T: +27 (0) 11 453-7537 F: +27 (0) 11 453-6056 E: nick@valcon.co.za Web: www.valcon.co.za BUTTERFLY VALVES

Ainsworth Valves T: +27 (0) 11 433-3968/79 F: +27 (0) 11 433-9107 E: ruben@uvc.co.za W: www.ainsworth-valves.co.za

T: +27 (0) 11 971-9400 F: +27 (0) 11 971-9440 E: malan.bosman@tectra.co.za W: www.hytecgroup.co.za

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com CHECK VALVES

Invincible Valves (Pty) Ltd T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za CONTROL VALVES

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com DIAPHRAGM VALVES

KSB (Pty) Ltd T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com

Stewarts & Lloyds (Pty) Ltd T: +27 (0) 11 917-0778 F: +27 (0) 11 917-0769 E: peterk@sltrading.co.za W: www.stewartsandlloyds.co.za

Ainsworth Valves T: +27 (0) 11 433-3968/79 F: +27 (0) 11 433-9107 E: ruben@uvc.co.za W: www.ainsworth-valves.co.za

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VALVES SLEEVE VALVES

Mine Track & Tools (Pty) Ltd T: +27 (0) 11 412 4536/1665 E: info@minetrack.co.za W: www.minetrack.co.za

Invincible Valves (Pty) Ltd T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za

Invincible Valves (Pty) Ltd T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za

T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri@cripumps.co.za W: www.cripumps.co.za

T: +27 (0) 11 412 4536/1665 E: info@minetrack.co.za W: www.minetrack.co.za PLUG VALVES

T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com ACCESSORIES

Invincible Valves (Pty) Ltd T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za PRESSURE REDUCING VALVES

Invincible Valves (Pty) Ltd

T: +27 (0) 11 433-3968/79 F: +27 (0) 11 433-9107 E: ruben@uvc.co.za W: www.ainsworth-valves.co.za

Mine Track & Tools (Pty) Ltd

GATE VALVES

C.R.I Pumps S.A. (Pty) Ltd

Ainsworth Valves

Valcon Valve & Controls T: +27 (0) 11 453-7537 F: +27 (0) 11 453-6056 E: nick@valcon.co.za Web: www.valcon.co.za REPAIR VALVES

PIPES

KLINGER South Africa T: +27 (0) 11 842-8300 F: +27 (0) 11 827-8663 E: gareth.langton@klinger.co.za W: www.klinger.co.za ENGINEERED PLASTICS

KLINGER South Africa T: +27 (0) 11 842-8300 F: +27 (0) 11 827-8663 E: gareth.langton@klinger.co.za W: www.klinger.co.za MANUAL

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com KNIFE GATE VALVES

Industrial Valves & Engineering Supplies (Pty) Ltd T: +27 (0) 11 394-2066 F: +27 (0) 11 394-2476 E: sales1@industrialvalve.co.za W: www.industrialvalve.co.za 46

Agrico T: +27 (0) 21 950 4111 F: +27 (0) 21 950 4208 E: alfred.andrag@agrico.co.za W: www.agrico.co.za HOSES

CHICK HENDERSON

Chick Henderson T: +27 (0) 11 640-1400 F: +27 (0) 624-1432 E: rob@chickhenderson.co.za W: www.chickhenderson.co.za FOUNDRIES

Ainsworth Valves T: +27 (0) 11 433-3968/79 F: +27 (0) 11 433-9107 E: ruben@uvc.co.za W: www.ainsworth-valves.co.za SAVETY & RELIEF VALVES

Industrial Valves & Engineering Supplies (Pty) Ltd T: +27 (0) 11 394-2066 F: +27 (0) 11 394-2476 E: sales1@industrialvalve.co.za W: www.industrialvalve.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

Tectra Automation T: +27 (0) 11 971-9400 F: +27 (0) 11 971-9440 E: malan.bosman@tectra.co.za W: www.hytecgroup.co.za MECHANICAL PACKING

KEW Foundries T: +27 (0) 53 841-0474 F: +27 (0) 53 841-0473 E: info@kewfoundries.co.za W: www.kewfoundries.co.za

KLINGER South Africa T: +27 (0) 11 842-8300 F: +27 (0) 11 827-8663 E: gareth.langton@klinger.co.za W: www.klinger.co.za

Viking Foundry (Pty) Ltd

Directors: W. Fourie (Chairman), N.P. Mnxasana (Non Exec) R Kruger, R. Dye, G.M. Scrutton Branch Manager: R. Dye Company Secretaries: Winhold Limited Reg No 1945/0196

T: +27 (0) 11 873-5093 F: +27 (0) 11 873-5695 E: sales@vfdy.co.za W: www.vikingfdy.co.za

Pipes, Pumps and Valves Africa - May/Jun 2018

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If it’s not Inval®, it’s not Invincible

Tel: +27 11 822 1777 enquiries@invalve.co.za www.invalve.co.za 48

Pipes, Pumps and Valves Africa - May/Jun 2018