Pipes, Pumps & Valves Africa May-Jun 2019

ENDORSED BY SAPMA, SAPSDA, SAVAMA AND VAMCOSA

MAY/JUN 2019

SA private sector could fix SA water crisis Rand Water Valve Installation Limit switch box for quarter turn valves

We offer valves for precision processes - and demanding applications Our valves fulfill the highest of standards and are designed for many years of safe and reliable operation. Our service specialists regularly check, monitor and maintain all relevant system components - depending on what has been agreed.

Our modular framework agreements offer you individual service and spare parts concepts. And we even go one step further. We additionally check systems for efficiency in order to reduce operating costs and increase productivity. For example, with the SES System Efficiency Service.

ZTS GATE VALVE

GATE VALVE AKG-A/AKGS-A

STAAL WEDGE GATE VALVE AKDS/AKD

NORI 500

Contact our dedicated Valves Sales Engineers for all your Valve requirements 011-876-5600 or email us info-za@ksb.com

> Our technology. Your success.

Pumps, Valves• Service

KSB Pumps and Valves (Pty) Ltd • www.ksb.com/ksb-za

BOA - H

CONTENT COVER STORY Aveng DFC provides sustainable solutions in global markets

6

ENDORSED BY SAPMA, SAPSDA, SAVAMA AND VAMCOSA

MAY/JUN 2019

INDUSTRY NEWS Rand Water Valve Installation

8

SA private sector could fix SA water crisis

10

SACEEC recognises local manufacturing exporters at inaugural Exporter of the Year Awards

13

PUMPS Stainless steel submersible pumps excel in corrosive conditions

14

Increased call for slurrysuckker to desilt

16

The right solution pumps with a flair for flavour

17

World’s largest platinum mine saves with Warman® upgrade

18

Starting it up, shutting it down

20

Atlas Copco weaves more WEDAs into its innovative submersible dewatering pumps suite

22

HCP Pumps is a recognized brand the World over

26

Cummins Ghana completes Goldfields pump repower project

28

5000-unit blanket order in place

29

Werner Pumps trucks assist in quest to save Vaal River

30

Curing the causes of cavitation

32

VALVES Limit switch box for quarter turn valves

37

More plant uptime with Weir Minerals’ robust,fit-for-purpose valves

38

AVK Southern Africa’s Academy offers ECSA-approved valve training

39

Zero maintenance Wouter Witzel valves reduce production costs and downtime at sugar mill New manifold valve design for pressure transmitters improves ergonomics and reliability

40 43

EXHIBITIONS & EVENTS Local Southern African Manufacturing Expo 12 pumps, valves & pipes exhibition 35 Caminex 36

Industrial Valve Summit 42 BUYERS GUIDE

44

SA private sector could fix SA water crisis Rand Water Valve Installation Limit switch box for quarter turn valves

On the cover Aveng DFC

Tel: +27 (0) 11 748 0200 Email: dfc@dfc.co.za Web: www.avengdfc.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: Kyle Rametsen-Spalding Email: kyle@pumpsandvalves.co.za Sales: Lusana Mrkusic Email: lusana@pumpsandvalves.co.za

Advertisers Air & Vacuum Technologies 31 Atlas Copco 19 AMD Rotolok CS Aveng DFC OFC,15 CRI 23 Cyclone Industries 37 Electra Mining Botswana 39 Ernest Electro Engineering 13 HCP Pumps 27 IFAT Africa IBC KEW Foundry 29 KITE 17 KSB Pumps 4 Macsteel Fluid Control OBC, 21 Pleix-Quip 43 Sam Engineering 41 Sulzer IFC + 3 Verder 11

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 2019

5

COVER STORY

Aveng DFC provides sustainable solutions in global markets Being a subsidiary of Aveng Limited, a Group that has more than 100 years experience in manufacturing across the African continent, Aveng DFC has the perfect base from which to provide a manufacturing and marketing infrastructure that is innovative and sustainable, allowing management solutions that focus on improving plant efficiencies.

Thus Aveng DFC can be justifiably proud of being the largest valve manufacturer on the African continent, supplying valves and pumps in the water, effluent and mineral processing industries, not only in the local market but also in the global export market as well.

Aveng Limited is a South African registered company, listed on the Johannesburg Stock Exchange, employing people across the globe, whose capability is underpinned by its broad footprint and multi-discipline construction and engineering history. The group is focused on infrastructure, water resource management, energy, and mining opportunities.

Pumps and Valves, in an exclusive interview with Luis Falcao, Managing Director of Aveng DFC, had a glimpse of the man, now at the helm who is guiding the business to new heights. Energy exudes from Falcao, which is in itself a sure indication of his positive objective for the company.

His two years with the company has brought a new shift in direction more towards applying marketing principles to grow the business rather than the old school adage of using engineering principles only.

Luis Falcao is a business strategist who has achieved results in the global business arena and as a visionary leader is passionate about achieving the right results for the company.

He describes his approach to transforming Aveng DFC, using the concept of four pillars: Innovation, global growth, talent development and access to markets. “The South African valve market has for, far too long existed

6

Pipes, Pumps and Valves Africa - May/Jun 2019

Luis Falcao Managing Director

with products of similar nature supplied by the industry as a whole and also subjected to competition from imports which have not always met the required specifications. We are therefore continuously developing new innovations in our products that will set us above the market norms and will hopefully eliminate the copies making their way into the market. We are currently developing 12 new designs that will attract new business and give us the edge when it comes to performance and reliability. The only way to target the innovators is to bring in new technologies. Our expertise

“Our vision for global growth is developing our products by maintaining economies of scale. This will enable us to compete favorably in the local market against the influx of imported valves. To remain price competitive, efficiencies in the manufacturing process will also contribute to our global growth,” added Falcao.

Developing talent has become a priority at Avenge DFC and forms part of the basic strategy of having the correct person in the right position.

This is not a skills development program but finding the right talent to be integrated into the company’s philosophy.

Realignment of market approach strategy is the fourth pillar contributing to the overall marketing mix. Channels are developed around specific applications designed to guarantee service delivery. This is to ensure that customers and engineers receive product on time. Should the distributors not meet the criteria they are removed. With the company’s select market strategy, people are picked that will take the company forward.

COVER STORY

and reputation is well known around the globe aided by our facilities in USA, Australia, Brazil and Finland,” said Falcao.

Many products in the range are being revised as well as the introduction of 12 new models down the line. The large bore high pressure Knife Gate Valve remains as the flagship of the range. Generally the range is continuously being improved with new materials being tested that will make the products lighter, maintain pressure better and cheaper to manufacture. Valves manufactured by Aveng DFC have received international acceptance and in order to highlight this achievement the well-known manufactured in South Africa logo is firmly emblazoned on every product leaving the manufacturing plant.

Coupled to the drive for more efficient products is the effective and dynamic sales team consisting of key account managers who are well supported by an inspirational technical engineering team that assist in the field where project applications are required. This professional sales team, although well versed in their operational duties have the benefit of a full time Sales Coach who remains in constant touch with the team. This is a complete departure from the norm but has proved to be an innovative first in the industry yielding exceptional results.

According to Luis Falcao the company has in line with this, introduced an education program to bring in final year engineering students as interns in order to train them into strategic positions in the company and thereafter to deploy them into the overseas facilities where their valuable experience can be returned to our local market should they so require.

“The current plans in the pipeline for Aveng DFC are yielding the required results. It is my intention to push the boundary further to bring back revenue into the country so we can sustain our growth pattern and support more employment. We currently have 400 staff in our facility and I would like to see sustainable growth in this area over the next ten years,” concluded Luis Falcao Aveng DFC, Tel :+27 (0) 11 748-0200, dfc@dfc.co.za, www.avengdfc.co.za Pipes, Pumps and Valves Africa - May/Jun 2019

7

Rand Water Valve Installation INDUSTRY NEWS

Working through the night, Rand Water shut down all its reservoirs and a 12km pipeline to install a new valve - all without any interruption to service. Pipes, Pumps & Valves Africa took a closer look.

As the bulk water supplier to more than 12 million people, responsible for more than 3500km of pipeline that is mostly larger than 600mm and at least 58 reservoirs, maintenance work at Rand Water has to be approached with careful planning and consideration.

Such was the case in the most recent project at Rand Water with the installation of a new valve on its old B11 and new B19 pipelines.

"The technical teams worked throughout the night to achieve the set project milestones,” said Eddie Singo, Executive Manager: Operations Portfolio at Rand Water.

The work was part of the augmentation of the Vereeniging Water Treatment Plant that is serviced from the Lethabo pumping station.

According to Singo part of the reason for doing the scheduled augmentation during winter was because of it being a lower demand time.

The work was also done within a set 54-hour period requiring teams to work throughout the night. “It is no surprise that one of the biggest challenges we faced was working under extremely cold temperatures particularly at night.”

Scope of work According to Singo the B11 pipeline was installed in 1982 with a maximum capacity pf 1300 megaliters per day. “As part of our capacity analysis of our entire system that includes a demand analysis – it was already identified in 2015 that the B11 would not be able to supply the required demand post 2020.”

Singo said the pipeline also required much-needed maintenance but it was a near impossible undertaking without affecting supply to the Rand Water system.

“Since then, a new steel pipeline has been laid from Lethabo to the Vereeniging plant,” said Singo.

Called the B19 this pipeline, like the B11, is a 2500mm steel pipe with a 1300 megalitre capacity.

“It therefore augments our system with 1300 megaliters of raw water from Lethabo pumping station to Vereeniging’s treatment plant.”

Following the pipelines’ readiness earlier this year it was time to connect the B11 with the B19 with a 15bar, 2500mm diameter and 15000 kg butterfly valve.

“It required a lot of planning as the municipal reservoir systems had to have water during the 54-hour shutdown during which the valve was installed. We therefore purified water ahead of time and stocked the reservoirs to supply water throughout the shutdown.”

The three-day project from June 24 to 26 went without any major hitches considering the enormity of the task.

8

Pipes, Pumps and Valves Africa - May/Jun 2019

“We did have challenges,” said Singo. “Particularly that the older pipe, the B11, installed some 40 years ago had overtime become oval and as a result could not fully align with the new piece however with the highly skilled boilermakers, pipe fitters and engineers the challenge was overcome.”

It also required much communication to manage consumers expectations and anxiety of taps running dry.

Keeping it together Singo said a “war room” was established to oversee the three-day shutdown and continuously monitor the network.

“We also communicated well in advance with consumers and made sure they were aware of what was happening throughout the project. We provided periodic updates every five hours throughout the duration of the shutdown.”

Having asked water users to be sparing with water supplies during the shutdown period, Singo said the network remained stable and was back to normal shortly after the valve had been installed.

“We also galvanised all of the municipalities around the work. They knew at all times what was happening and were very much a part of the entire process.”

INDUSTRY NEWS

Replacing the valve According to Singo work started at 6am on Monday, 24 June with the isolation of the pipeline and drainage of the water in it.

“This 12km pipeline is 2 500mm in diameter, from where significant volumes of water need to be drained. The draining

of water allowed for technicians to safely commence with the required cutting and welding aspects of the work.”

Once drained the butterfly valve could be slotted in connecting the B11 and B19 and was then welded into place. This was then followed with testing and a slow rcommissioning of the new line.

“It had to be done gradually as one can’t just rush a large amount of water through immediately,” said Singo.

Asked about the value of the new line and the valve, he said it gave the water utility the capacity to now do the maintenance work required on the B11 making sure its infrastructure was able to keep up with the demand it was forecasting for the future.

Singo stated plans for maintenance extended to 2023 and included replacing pipes affected by corrosion and that were leaking.

“Having a second pipe means that when we upgrade and do future repairs, water will not have to be cut. It gives us much-needed flexibility in our system.”

By the time of going to press the utility’s network was completely operational and stable, with all its reservoirs meeting demand.

“We had no reports of interruptions to service due to the shutdown thus far – something we are extremely proud of,” said Singo.

Rand Water, Tel :+27 (0) 11 682-0911, www.randwater.co.za Pipes, Pumps and Valves Africa - May/Jun 2019

9

SA private sector could fix SA water crisis PUMPS

SA’s water treatment sector has the collective knowledge, technology and capacity to solve South Africa’s water and wastewater treatment crisis in as little as three years, say stakeholders set to participate in the IFAT water treatment and recycling trade fair.

South Africa’s dams, rivers, wastewater systems and water distribution systems are in a dire state, but the solutions to these challenges are readily available within the country.

This is according to water sector experts who were speaking ahead of IFAT Africa, the water, sewage refuse and recycling industry’s key annual trade fair and conference, which is set to take place in Johannesburg in July 2019.

Unless urgent action is taken, South Africa’s looming water crisis will prove far more devastating than the power crisis, potentially crippling the economy and costing lives, says Eric Bruggeman, CEO of the South African Capital Equipment Export Council (SACEEC), which endorses IFAT. “The majority of our dams, water treatment facilities and wastewater systems are over 30 years old, with some as old as 100 years. Inadequate maintenance has been done in the past 20 years and the population has virtually doubled since this infrastructure was installed, so the existing infrastructure cannot cope with demand. As an arid country, we have to provide more dams in catchment areas and maximize the water we have. On top of that, leaks, contamination and a failure to recycle water mean we are losing a large proportion of the available water. The situation is frightening,” he says.

Deploy private sector experts “To address the situation, an incredible amount of work must be done on maintenance, storage capacity must be upgraded and increased, new dams must be built and ageing pipes must be re-laid. Sewage must be addressed – you can’t have effluent running through the streets and into the dams. Water should be the top priority from national down to municipal level,” Bruggemans says. However, in the face of a lack of resources, the public sector needs to be looking to the private sector for assistance. “Budget must be made available and the private sector should be allocated the projects. With the right budget, the private sector could fix the problems in under three years.”

Chemical engineer Annejan Visser, a process engineer in business development for Quality Filtration Systems (QFS), says while the country is in dire need of solutions, too much time and effort is being dedicated to an outdated consulting, brick and mortar civil approach to water treatment. “Solutions are now available in South Africa that could address water treatment problems far faster and much more cost effectively,” he says. “The most important thing to be done now to address our water problems, clean up rivers and assure water security is simply to stop talking about it and take action.” He notes that South Africa has a highly competitive and advanced water and wastewater treatment sector, with the skills, capacity and technologies 10

Pipes, Pumps and Valves Africa - May/Jun 2019

to overcome the country’s water challenges. “If the funding was channelled into action, and our private sector stakeholders were mobilised, collectively, we could probably overcome water and wastewater treatment challenges in as little as one to three years,” Visser says.

Progress hurdles While private sector may have the capacity to address the challenges, no clear models exist for such engagement, and local regulations hamper the use of a great deal of locally available equipment.

Mark Madlener, General Manager at Conns Manufacturing, notes that many South African private sector contractors are engaged in major projects in neighbouring countries, where they are able to deliver infrastructure quickly and often at a lower cost that what the South African government is paying. This, he explains, is partly due to the local content rule, which specifies that 85% of the project should comprise local content. This limits the use of advanced – and often cheaper – imported components, can increase the cost of projects and can also slow them down as contractors source appropriate components. “In a country with a massive budget deficit, we need to save money where we can and give more thought to who the suppliers are, is the product locally available, and are the prices reasonable. Across our borders where the same rules aren’t in place, they are just looking to get the plant at the best price and best quality,” he says.

Carl Haycock, CEO of Talbot & Talbot, says: “We could potentially see private sector stepping in to help address the problems, but it would be very difficult for industry to take over completely and provide a solution that a municipality or public sector service provider should deliver.”

Haycock notes that with an estimated R33 billion investment needed each year over the next ten years to recover and protect the country’s water security, a great deal of work needs to be done. “But it is crucial that action is taken.

Unlike electricity, which you can generate yourself when supplies are not available, water cannot be generated. It’s a resource that is already under a great deal of pressure and it will become increasingly scarce.”

Price hikes loom He believes that water prices are set to soar as treated water supplies come under pressure. “We know our water resources are under pressure in various ways and for various reasons. There is increasing demand for the limited quantities of serviced water available to us due to population growth and industrial growth, but the amount of water

IFAT Africa Full page advert-A4 Trim 297mm x 210mm; include 5mm bleed Material deadline-5 June-Repro.pdf

1

2019/06/03

12:16 PM

Connecting Global Competence

IFAT Africa 2019 July 9 - 11, 2019 • Johannesburg Gallagher Convention Centre, Midrand

PUMPS

Africa's leading trade fair for water, sewage, refuse and recycling.

C

M

Y

available has remained fairly static. This is exacerbated by droughts as we have seen in the Western Cape and KwaZulu Natal. When normal rainfall doesn’t occur, water very quickly becomes a scarce commodity, with the situation bordering on a crisis.”

CM

MY

CY

CMY

K

About IFAT Africa IFAT Africa is the leading environmental technology trade fair in sub-Saharan Africa and is part of the IFAT worldwide cluster, featuring international innovations and trends precisely tailored to the local market. The IFAT cluster presents innovations, resources, and solutions across water, sewage, refuse and recycling. ifat-africa.com

“We have seen water as a relatively resource in the Don’tcheap miss Africa's past, and we haven’t implemented appropriate measures, leading trade fair for but as the cost of water increases, we will become more IFAT Africa will be held from July 9 - 11, 2019 at Gallagher water, sewage, refuseConvention and recycling! prudent.”

Centre, Midrand, alongside food & drink technology Africa (fdtrecycling Africa) and analytica to IFAT Africa brings together industry leaders across the water, sewage, refuse and sectors, as well as the food Lab & drinkAfrica and analytics Haycock expects to see fairly steep price increases over the industries, to showcase the latest in technologies,bring processes andthe thought leadership. Vist IFAT full Africa spectrum for: to continent the of technology next few years: “We have done a lot of data modelling, and water, sewage, refuse and recycling, food and found that over the last five years,Advanced most municipalities haveby overbehind technologies and solutions 100 top local and international brands beverage production, and laboratory technology, analysis, seen increases of between 10 – 14%.

Butinnovations with consumers International and trends precisely tailored to the local market biotechnology and diagnostics. expected to start paying for water infrastructure, we can Master classes on topical issues expect double digit price increasesNetworking for many years to come,” IFATrelated with up to 6,000 stakeholders across sectors Africa is presented by Messe Muenchen South Africa. he says.

In co-location with: Talbot & Talbot, Conns Manufacturing and Quality Filtration & drink technology Systems (QFS) will be among over 100food exhibitors showcasing the latest water treatment solutionsAfrica and services at IFAT Africa from July 9 – 11 at the Gallagher Convention Centre www.ifat-africa.com in Midrand.

IFAT Africa, Leigh Angelo, Tel: +27 (0) 11 869 9153, leigh@tradeprojects.co.za

VERDER HYGIENIC PUMP SOLUTIONS

Tel.: +27 (0)11 704 7500 info@verder.co.za www.verder.co.za

Pipes, Pumps and Valves Africa - May/Jun 2019

11

LOCAL SOUTHERN AFRICAN MANUFACTURING EXPO AFRICA’s LEADING INTERACTIVE SHOWCASE OF MANUFACTUING CAPABILITIES Bringing Southern Africa’s manufacturing capabilities to a captive audience The Local Southern African Manufacturing Expo (LME) 2019 event attracted a large local and global target audience all looking to source high-quality locally manufactured products and complementary services.

Southern Africa’s leading brands exhibit at the Expo The Local Southern African Manufacturing Expo 2019 attracted the cream of the crop in local manufacturers and service providers.

The SACEEC Exporter of the Year Awards were presented at the inaugural Local Southern African Manufacturing Expo (LME)

• Exporter of the Year Small (turnover of <R25-million): NXCO Mining Technologies • Exporter of the Year Medium (turnover of R25-million R200-million): African Mixing Technologies • Exporter of the Year Large (turnover of >R200-million): Bell Equipment Company South Africa • Exporter of the Year Africa (turnover of >R100-million): Multotec Process Equipment • Exporter of the Year Africa (turnover of <100-million): Aard Mining Equipment • Exporter of the Year Services: Consulmet • Emerging Exporter of the Year: T-Legacy Components • SACEEC Member of the Year 2018: Fabchem Mining The Expo, which is endorsed by the Premier of Gauteng, David Makhura, is the culmination of a collaborative effort between the South African Capital Equipment Export Council (SACEEC) and organisers Specialised Exhibitions Montgomery.

INDUSTRY NEWS

SACEEC recognises local manufacturing exporters at inaugural Exporter of the Year Awards

www.localmanufacturingexpo.co.za

rnest

Eric Bruggeman, CEO at SACEEC, says: “It is fitting and (Pty) Ltd. certainly no mere coincidence, that the first-ever SACEEC Exporter of the Year Awards took place at the Local Southern African Manufacturing Expo. The Expo is the Save on electricity no priming problem & perfect showcase for the vast array of products available maintenance free pumping of water from local manufacturers. There is a wealth of talent in Southern African manufacturing and SACEEC is thrilled that German Submersible Motor Technology at its best ! the industry is being placed in the spotlight. There is no doubt in our minds that the quality and innovation being exhibited at the Expo equals, and even exceeds, that which is available on the global stage.

Float your Pump to Save Money

“The SACEEC Exporter of the Year Awards allow us to further recognise the supreme efforts invested by a number of these local manufacturers. There were a large number of entries, all of which are notable by their focused drive to provide products that are characterised by out-of-thebox thinking, coupled with careful and systematic attention to detail. Selecting the finalists, and later the winners, was an extremely hard task since all qualifying companies have excelled in their respective field of expertise,” Bruggeman continues.

“The following award winners are to be commended on the sterling efforts they have made in putting South African manufacturing on the map,” says Charlene Hefer, portfolio director for Specialised Exhibitions Montgomery.

For further information contact us: ERNEST ELECTRO ENGINEERING Tel: (011) 792 9550 • Fax: (011) 792 9553 • E-mail: eeeaman@mweb.co.za Website: www.ernestee.co.za

Pipes, Pumps and Valves Africa - May/Jun 2019

13

Stainless steel submersible pumps excel in corrosive conditions PUMPS

Nothing beats a fully cast stainless steel pump for resilience and reliability when faced with a corrosive environment, contaminated water and abrasive solids.

“A protective coating on your standard submersible drainage and sludge pump will only protect your pump until the first scratch,” warns Integrated Pump Technology managing director Colin Adams. “After that, acidity and abrasion can destroy standard pumps in a matter of weeks or even days.”

The Grindex INOX series of pumps – distributed in Africa

by Integrated Pump Technology – are made of acid-proof stainless steel to operate reliably in pH levels ranging from 2 to 10.

This makes them ideal for mines, shipyards, power plants and other worksites that deal with corrosive water, salt water or sludge. All INOX pumps can even be equipped with zinc anodes for extra protection.

The Minette INOX to the Master INOX drainage pumps are designed for pumping water with abrasive particles in suspension, up to the size of the strainer holes. The Salvador INOX to the Sandy INOX sludge pumps specialise in pumping water with a high content of solids, up to the size of the pump inlet opening diameter. They can pump water with abrasive particles, different types of mud and sludge, or even light slurry.

The Mega Inox – based on the well-proven cast-iron Mega pump platform – is also manufactured completely in stainless steel. The power of this unit makes it ideal for operation in deep excavations where very high head pumping is needed.

Features that make these stainless steel pumps unique include SMART motor protection that prevents damage caused by power failures, an air valve that cools the pump should it run dry, and an outer casing in corrugated stainless steel to handle rough treatment.

The casted acid-proof stainless steel impeller ensures pumping capacities in corrosive fluids, while the diffusers in the drainage pumps are rubber-lined and adjustable to maintain optimum pumping performance. In the sludge pumps, the rubber-lined pump housing is highly abrasive resistant and oil-resistant for longer life. The Grindex INOX model even offers double mechanical shaft seals, with an oil compartment between the seals.

While the INOX stainless steel range is an exciting new innovation in drainage and sludge pump applications, Grindex has been designing and manufacturing electrical submersible pumps for some 50 years. Over 300,000 of these pumps have been supplied in more than 100 countries.

14

Pipes, Pumps and Valves Africa - May/Jun 2019

The newly launched 90 kW Grindex Mega stainless steel submersible pump.

Integrated Pump Technology, Tel :+27 (0) 11 918-9034, colin@pump-technology.com, www.pump-technology.com

Increased call for slurrysuckker to desilt PUMPS

Increasing pressure to lower the total cost of ownership (TCO) has seen many mining operations review their water management strategies. Integrated Pump Rental reports that this has led to increased enquiries about its locally manufactured solutions that mitigate the challenges of silted process water ponds.

The SlurrySucker is was developed by Integrated Pump Rental for applications where the water retention and water holding capacity of process ponds in threatened.

Ruaan Venter, development manager at Integrated Pump Rental, says there is now a more proactive stance being taken on the monitoring of these water reservoirs.

“Taking this concept one step further, we have found that mines are investing in their own SlurrySucker equipment,” Venter says.

He says this is most encouraging as Integrated Pump Rental has been calling for a more systematic approach to the monitoring of process ponds. “Apart from the fact that South Africa is a water scarce country, we have always maintained that the proactive monitoring and regular desilting of process water ponds will save customers in the long run.”

The SlurrySucker is was developed by Integrated Pump Rental for applications where the water retention and water holding capacity of process ponds in threatened. It is also ideal for the dredging and cleaning of water capture areas where silt or slimes has become an issue.

Adding to that challenge of water shortages is the need for mining operations to reduce their reliance on municipal water supplies. This means that efficient monitoring of process water ponds is critical in terms of recycling and reuse of water for the plant and other purposes on a mine.

16

This innovative dredge unit needs only a 400 draught of water above the sediment for the floating unit to operate. A dewatering pump takes the top layer of water and feeds it down to the dredge-head, where the slurry is agitated so it can be pumped out.

Ongoing monitoring of process water ponds will facilitate desilting activities on a rotational basis. This will eliminate the disruption of unexpectedly having a pond out of service.

“Our SlurrySucker is available for outright purchase which is a popular option currently, but we also offer the unit on a rental or project agreement where our team will conduct the work for the end-user,” Venter concludes.

Venter adds that the economic value of the minerals in the silt should also not be forgotten and this material can be pumped back into the plant for reprocessing. The value claimed from retreating the silt can, in many instances, pay for the pond cleaning activity.

Integrated Pump Rental, Ruaan Venter, Tel: +27 (0)11 894-2906, www.pumprental.co.za

Pipes, Pumps and Valves Africa - May/Jun 2019

The right solution pumps with a flair for flavour The food and beverage industries remain important contributors to the manufacturing and fastmoving consumer goods (FMCG) sectors, as well as the local economy.

PUMPS

However, food and beverage manufacturers are some of the most highly regulated (and penalised) businesses – and rightly so, given the impeccable standards of process and product quality, and safety, must be maintained to protect consumers and end-users. As a result, production efficiencies and product quality remain key performance indicators for food and beverage manufacturers.

To produce high-quality products, and reduce waste, throughout the production process it is important to have an environment that meets and exceeds the local hygienic standards. This of course requires machines that are 100% reliable and equipment that is safe, all while allowing for optimum production performance.

Microbes, for instance, present an ever-looming threat to food and beverage manufacturers. With the current consumer trends in food, the sector has seen an increase in favouring fresh, flavourful, easy-to-prepare foods, with little sugar, salt, and less to no preservatives added – however this makes it difficult to keep microbes out of the food.

Linked to this, the directives from the European Hygienic Engineering Design Groups (EHEDG), which are intended to prevent contamination, includes a directive stating that every part of the production line should be accessible for cleaning.

However, given that most manufacturers produce more than one product the requirements within a plant often vary based on their manufacturing schedules. This means that whether the plant produces dairy to baked goods, cereals, beverages and/or confectionary products, etc.; the pumps need to perform optimally - while still handling the products with care and meeting today’s clean in place (CIP) and sterilisation in place (SIP) hygiene standards.

And this is not an easy task if the integrated pump solutions don’t have EHEDG certification.

12911 - KITE2019 VISPROM AD 180x65 LIFTING AFRICA PATHS.indd 1

Food and beverage manufacturers therefore need to look to a trusted and reputable brand that can offer a wide range of not only reliable pump solutions, but deliver cost-effective, efficient and long-lasting options. Surely the goal should be to not only meet all the current market challenges - but also enhance efficiencies in the manufacturing process.

These are the types of solutions that are worth investing in, don’t you think?

Verder Pumps, Tel: +27 (11) 704 7500 info@verder.co.za, www.verderliquids.com/za/en/

2019/04/30 16:03

Pipes, Pumps and Valves Africa - May/Jun 2019

17

PUMPS

World’s largest platinum mine saves with Warman® upgrade Anglo American Platinum’s Mogalakwena Mine was able to increase throughput and reduce energy consumption in its secondary mill circuit with the installation of a Warman® MCR® 450 pump. The pump solution, equipped with a rubber lining and metal impeller, was provided by Weir Minerals Africa.

A Warman MCR 450 installed at Mogalakwena Mine.

The mine, near Mokopane in Limpopo province, is the world’s largest open pit platinum mine with among the lowest operating costs. In line with the mine’s focus on productivity, Weir Minerals Africa proposed this pump solution as it offered a higher volumetric capacity in anticipation of future increases in throughput requirements.

The larger impeller of the Warman® MCR® pump allows lower pump speeds and consequently less wear. The rubber liner of the Warman® MCR® pump is lighter and the hydraulic design has improved efficiency and wear characteristics.

18

Pipes, Pumps and Valves Africa - May/Jun 2019

This allowed the mine to raise its production target from 600,000 to 700,000 dry tons per month.

The replacement pumps were retrofitted to the existing footprint, without disturbing existing motors, gearbox drives or pipework. On-site Weir Minerals Africa technicians were deployed during the commissioning phase. Once installed, the Warman® MCR® 450 pump milled 4,400 m3 per hour, shifting 760,000 dry tons per month. Online for 78.9% of the plant operational time, the pump was able to deliver significant savings through lower power consumption. After

3,000 hours in operation, the Warman® MCR® 450 pump was examined to evaluate the wear rate of the hydraulic components. Localised wear was evident on some of the components, and the mine decided to continue running the pump to point of failure. The improved wear life will result in a significant saving for the customer.

PUMPS

The independent study conducted after the initial installation confirmed the pump’s improved performance. The study also recommended converting all mill discharge pumps at the operation to Warman® MCR® 450 pumps, to maximise pump performance and reduce energy consumption.

Based on the mine’s satisfaction with the way the pump met its objectives, it has placed an order for three Warman® MCR® 450 pump conversion kits to retrofit the remaining Warman® AH® 20/18 RE pumps installed in the secondary mill circuit.

Weir Minerals, Rajen Govender, Tel :+27 (0) 11 617-0700, rajen.govender@mail.weir, www.global.weir

The Warman MCR 450 runs at lower speeds resulting in lower wear rates on the parts.

Pipes, Pumps and Valves Africa - May/Jun 2019

19

Starting it up, shutting it down PUMPS

The inherent understanding of a pump in any operating environment impacts how much time, resources, and money is spent. The same goes for the start-up and shut down because understanding how to minimize and control cavitation in these systems can prevent catastrophes and save human lives. Pipes, Pumps & Valves Africa take a closer look.

Starting a pump might seem simple enough. Fill the pump with liquid, open the discharge valve and start it. Hold up, says Andreas Vandré, Flowserve Regional Manager Educational Service EMA, it is slightly more complicated.

Any pump filled with liquid from an outside source first has to be vented and this cannot be done if it is running as the centrifugal force will throw the heavier liquid out and trap air in the centre.

The first action is therefore venting the pump and this has to be done until all vapor is removed, explains Vandré. “Any high spot in the pump can hold a pocket of vapor which can damage the pump. Generally, the casing and seal will have vent ports on the top.”

He advises against hard starting centrifugal pumps. It makes wear rings touch and causes coupling, bearing and shaft failure over time.

“Continued hard starting shortens pump life,” says Vandré.

Warming up the pump Single stage pumps, says Vandré, need to be warmed up gradually if the pumping temperature is above 149 °C. The pump is ready when the skin temperature is within 23 °C of pumping temperature. “Normally we consider 55 °C as the standard.”

Multistage pumps should be warmed up gradually if the pumping temperature is above 93 °C. The difference between the top and lower half of the casing is within 10 °C and the casing T is within 55°C with respect to the pumped fluid. Other items to check during the warm up are the connection points, the flow rate and peripheral equipment.

Once the pump has vented and reached thermal stability, the next step is to open the discharge valve to minimum flow or 25% to 30% open. Then start the pump.

“Open the discharge valve fully, or then enough to reach a desired flow. If the pump is cavitating, pinch the discharge valve or reduce the speed if possible,” says Vandré. “As soon as the pump is at speed, open the discharge valve to at least minimum flow.”

It is important to remember, he says, that minimum flow is unique to every pump and must therefore be known.

Identical appearing pumps may even have different minimum flow requirements.”

After start up don’t forget to look for leakage. “Listen for seal squealing which is an indication of dry running,” says 20

Pipes, Pumps and Valves Africa - May/Jun 2019

Vandré. “If you hear it, shut the pump down immediately and ensure the seal chamber is vented. Also listen and feel for vibration and shut down immediately if it is present.”

His advice is clear. “Remember, pumps do not ‘run in’ and heal themselves.”

Shutting it down Don’t stop a pump abruptly, says Vandré. This, he explains, is in relation to observing the pump unit.

“When you push the switch to stop, the pump will stop smoothly, but the operator cannot influence the process.”

The first step is to shut down the driver. “Reduce the speed relatively slowly. If the pump stops abruptly when the driver is shutdown, immediately investigate the pump for binding.

Take the necessary immediate action before restarting the pump.”

If one needs to remove the pump then next close the pump suction and discharge valves, close the valve in the bypass line and turn off the cooling liquid.

“If the pump is subjected to freezing temperatures it must be drained of liquid to prevent damage to the pump,” he says.

Also keep in mind, says Vandré, that big pumps can run for a minute or two before they come to a complete stop. www.liquidmovers.co.za

Tel: +27 (0)11 383 4000

PUMPS

Atlas Copco weaves more WEDAs into its innovative submersible dewatering pumps suite Atlas Copco’s WEDA electric submersible dewatering pumps series has earned a stellar reputation for its versatility and unrivalled performance. Noting its popularity amongst customers’, the company has extended the portfolio, which sees the completion of the ranges for drainage and sludge applications as well as the addition of a new range for slurry applications.

“Through these range expansions coupled with design enhancements, our WEDA pumps are now capable of providing flow rates of up to 16,500l/min with power ratings up to 54kW,” states David Stanford, Business Line Manager of Portable Products at Atlas Copco Power Technique.

“These pumps present the perfect dewatering solutions for numerous diverse applications across the construction, industrial, emergency and maintenance sectors.”

The entire WEDA assortment has been simplified for customers with all models classified by the application and type of fluid that they manage from small to highly challenging solids. Split into three divisions, the range now includes the expanded WEDA D for dewatering, the WEDA S for sludge and the brand new WEDA L for slurry.

Designed to handle both clean and dirty water, the WEDA D pumps have the ability to even manage small solids. Utilising the top-discharge function, WEDA D pumps handle water of specific gravity to 1100kg/m3 and solids of 4 – 12mm diameter. The new D80 dewatering model takes centre stage in this series.

Extending the WEDA S sludge fold, which is ideal for the dewatering of liquid sludge with bigger solids, are the new S30 and S60. These models are able to handle thick, soft, wet mud or other similar viscous mixtures of liquids and solids, especially products from an industrial or refining process.

The WEDA S pumps’ bottom side discharging capabilities cover water with specific gravity to 1400kg/m3 and solids of 25 – 50mm.

The large apertures of the new rugged WEDA L series facilitate the handling of slurry containing the most challenging solids. This new kid-on-the block efficiently manages semi-liquid slurry mixtures usually made of fine particles of manure, cement or coal, and water. Utilising bottom side discharge, WEDA L pumps manage water of specific gravity up to 1700kg/m3 and solids of 20 – 60mm diameter.

22

Pipes, Pumps and Valves Africa - May/Jun 2019

Atlas Copco's WEDA S pump range is ideal for the dewatering of liquid sludge with bigger solids

All pumps in the D and S range are available with WEDA+ features which include phase failure protection, rotation control, thermal switches and a 20-metre cable with phase shifter plug for all 3 phase pumps. The WEDA+ features are also available as an option on the L range.

Enhanced performance is carefully balanced with ease of operation. “Whilst revitalising the WEDA range Atlas Copco placed great focus on not only optimising the pumps performance, but also making the pumps lighter, increasing

electrical safety as well as improving the seal design, installation and maintenance,” says Stanford. “The compact design, coupled with a 20% lower weight compared to similar products, facilitates machine handling and transportation.”

Stanford adds that this also makes them particularly suited for rental use.

PUMPS

Stanford points out that to ensure seamless operation in harsh environments, all WEDA models feature a built-in starter and motor protection system as well as optional automatic level control. Enhanced machine durability is achieved through adjustable wear-resistant rubber diffusors and hardened high-chrome impellers. Furthermore, higher corrosion resistance across all applications is possible through an improved aluminium alloy, whilst reinforced cable entries provide higher resistance to water leakage.

Uptime is maximised thanks to quick and hassle-free maintenance; all pumps contain seal types appropriate to their size, an external plug for grease filling or an oil inspection plug. Due to the pumps’ numerous connection options and sizes, discharge connections are adjustable with flow directions from 90-180 degrees. Atlas Copco fully supports its WEDA pump customers’ through readilyavailable parts as well as a vast network of expert dealers and service technicians.

“Last year saw Power Technique successfully launch several pioneering products and range expansions and this year we continue this trend through our new complete WEDA range which we have introduced at Bauma 2019. We are confident that these latest WEDAs will exceed the high-performance and efficiencies that customers’ have come to expect from the pumps range,” concludes Stanford.

The large apertures of Atlas Copco's new WEDA L pump range facilitates the handling of slurry containing the most challenging solids

Atlas Copco, Tel :+27 (0) 11 821-9800, www.atlascopco.com/en-za

Pipes, Pumps and Valves Africa - May/Jun 2019

23

PUMPS

HCP Pumps is a recognized brand the World over 2019 is a special year for HCP Pumps SA (PTY) LTD and its associates. They are celebrating a 50th and 21st birthday, 25 years of servicing the Southern African market and their principals are celebrating 40 years of manufacturing. From a humble family business, the company has grown into a world leader in the manufacture of submersible water pumps.

Established in 1979, HCP Pump is celebrating its 40th anniversary this year. Growing from a small family run manufacturing facility, HCP Pump today, is rated amongst the world leaders in the pumping industry. South Arica started its official association with the company in 1994. HCP Pumps SA (Pty) Ltd today is one of the oldest international representatives of HCP Pump Manufacturer Co. Ltd. The main manufacturing facility is situated in the industrial heartland of Taiwan and is serviced by the Kaohsiung International Port. The 33 702m2 facility houses the R&D, Engineering, Assemble and Test facilities. The factory produces in excess of 150 000 pump units annually. The factory ships on average 10 containers every week to different parts of the world. HCP Pumps can be found in Asia, Europe, Russia, Middle East, North and South America to mention a few.

The range includes portable drainage pumps, solids handling sump pumps, stainless steel drainage and waste water pumps, Axial flow pumps, submersible jet pumps and heavy-duty waste water pumps.The portable pumps are available in single phase 220VAC and three phase 400 and 550VAC. Pumps up to 2,2kW can be fitted with a single float level switch for unattended operation.

HCP Pumps SA offer Grade #304 and #316 Cast Stainless steel pumps in single and three phases with three impeller options depending on the product being pumped.

The axial flow pumps are used for large volume flows at relative low discharge pressure. These pumps are unmatched in performance.

HCP Pumps are increasing its market share in mining and quarrying. Key markets are South America, Africa and the USA with some activity in Russia.

Submersible grinder pumps are popular in the hospitality industry. With many lodges and bush camps not having waste water treatment facilities, these pumps are used to macerate and transfer sewage over vast distances through small networks.

The AFG and KZN slurry submersible pumps are fitted with an agitator/flow inducer which facilitates the pumping of settled sludge in process and power plants. These pumps are fitted with HI Chrome wetted parts and run at 4pole speeds. They can either offer a volute discharge or top discharge pump for use in confined spaces.

HCP has just launched a 22kW dewatering pump to complement their already extensive range of dewatering pumps. This pump comes on the back of the recently launched 11kW and 15kW models. The 22kW-2pole pump is based on their axial flow design where all the water pumped is forced past the motor housing resulting in superior cooling and higher efficiencies.

26

Pipes, Pumps and Valves Africa - May/Jun 2019

HCPâ&#x20AC;&#x2122;s biggest market is the sewage and waste water market.

With its large product offering and numerous models HCP leads the market in the Far and Middle East. The pumps are growing in popularity in the USA and Canada. The various impeller options allow HCP to compete in all the aspects of waste water pumping applications. They have cutter

PUMPS

impellers, recessed vortex, channel impellers and open single vain impellers running at 2 and 4 pole speeds.

All tehir pumps can be installed as free standing or permanent (Duckfoot bend) installations.

HCP Pump Manufacturer Co. Ltd has the only certified Performance Testing Facility recognized by ILRAC-MRA in Taiwan. Pumps are tested to TAF, ISO 17025:2005, IEC17025 international standards.

HCP Pumps SA has a 1400m2 warehouse/repair facility situated in Sebenza, Edenvale, South Africa. Their employees

are proud to be associated with a company that strives to innovate, grow and serve the world. A 25-year relationship has placed them in a position to serve their customers and their needs on an ongoing basis. HCP Pumps SA distributes pumps to all neighbouring countries as well as to other African countries in the SADC region.

HCP Pumps, Tel: +27 (0) 11 452 8116/7/9, info@hcppumps.co.za www.hcppumps.co.za

50Hz z

Pipes, Pumps and Valves Africa - May/Jun 2019

27

PUMPS

Cummins Ghana completes Goldfields pump repower project Mining site operations are extremely demanding, and dewatering pumps need to run continuously to remove groundwater to ensure non-stop mining. A recent pump repower project in Ghana demonstrated Cummins’ product knowledge and engineering strength to power the success of customers in one of the key markets in the Africa Middle East region. The segment is led by Mohamed Othman, based in Dubai.

At the beginning of this year, the Cummins Ghana technical team, in collaboration with the on-site service support team, Account Manager and West Africa Territory Manager, combined their expertise to successfully carry out the repowering of five dewatering pumps for BCM at a Goldfields site in Tarkwa, Ghana. The dewatering pumps are used for pumping water in a 24-hour dewatering mine pit.

Before the repower, the customer experienced product failures and support challenges. This resulted in them approaching Cummins Ghana for product options. Joshua K. Cobbah, the Regional Leader for Cummins Ghana West, explains that the initial plan was to provide a ‘like-for-like’ engine option for the competitor electronic engine that powered a Sykes water pump.

“We initially settled on a QSX15 electronic engine for the repower as a ‘like-for-like’ option. However, after thoroughly reviewing the customer’s requirements and expectations of product reliability and equipment uptime, the final strategy was to provide an NTA855 mechanical engine for the customer's operations,” Cobbah reveals.

The NTA855 mechanical engine is a fully-packaged ’plugand-play’ power unit, consisting of the engine, cooling pack, control panel, exhaust muffler, and base frame. The power unit offers consistent power for pumping water, smooth operations, easy maintenance, efficient fuel consumption, and a reliable product that can work with the fuel quality in the region.

The co-operation of the Ghana technical team and AME Pump segment team is a clear demonstration of how the combined expertise of the project team resulted in a product offering that met the customer’s expectations and requirements.

“The plan was to give the customer not just an engine, but a complete pump power pack. At first, the customer requested one engine for trial, but after viewing pictures of the complete power pack on offer, increased their order to seven engines, which we have supplied. The customer found our price offer for a complete power pack to be more competitive than other offerings in the market,” Cobbah highlights.

28

Pipes, Pumps and Valves Africa - May/Jun 2019

Despite the technical challenges faced at the outset, the project has diversified Cummins’ product coverage on the mining site itself and in the West Africa territory. Customers now have more options for their pump-engine solutions. It has proven to be a win-win project, as the customer has been delighted due to the excellent customer support it received.

It has also given Cummins the opportunity to market itself as an industrial pump-engine solution provider.

Other mining customers on-site did not only show interest in similar repowers, but also requested for complete pump/ engine options. This project has improved the skills set of the sales and technical support team by means of training.

The customer has provided positive feedback and looks forward to improved performance during the rainy season.

Cummins Deepa Rungasamy, Tel ; +27 (0) 11 589-8512, www.cummins.com

5000-unit blanket order in place A Georgia-based vertical-turbine pump manufacturer is regularly drawing on its 5000-unit blanket wear-rings order, which it signed with Vesconite Bearings.

These have already been produced, and are simply ordered as required, and then invoiced and dispatched.

Vesconite Bearings technical sales representative Charlie Simpson notes that the company ordered its first Vesconite Hilube wear rings in 2015 and, after testing, started ordering larger quantities from 2017.

In a recemt visit to the pump manufacturer, fixed volume requirements and pricing were finalised and these were included in the blanket order.

“The company is happy with the performance of the Vesconite Hilube wear rings,” says Simpson.

“It sees the value of using the product and has switched all of its wear rings to Vesconite Hilube ones in all of its ownbrand vertical-turbine pumps.”

The manufacturer supplies the central and south-eastern USA with pumps for the municipal, industrial, fire and floodcontrol industries.

PUMPS

The order, which covers a one-year-period, allows the manufacturer to request low-friction Vesconite Hilube polymer wear rings for 10 of its vertical-turbine-pump models.

Some of the Vesconite Hilube wear rings that Vesconite Bearings produces

Vesconite Hilube wear rings are valued because they allow for exceptionally close clearances to ensure greater pump efficiencies and save energy costs. They are also impeller friendly, and will act as a mechanical fuse - a sacrificial part which does not damage impellers, unlike bronze and stainless steel wear rings.

Wear rings from Vesconite Hilube are suitable for use with mildly acidic or basic liquids. Being hard wearing, they are suitable for use in applications where some debris is present.

Vesconite Bearings, Charlie Simpson, Tel: +27 (0) 11 616-1111, charlie@vesconite.com www.vesconite.com

Cast with Skill – Delivered with Speed KEW Foundries taps into 100 years of Foundry and Pattern Shop experience to develop innovative solutions to unique casting requirements.

We work closely with our Clients in the design and development of a diverse range of patterns to produce small to large castings servicing the pumps, valves and water reticulation industries.

KEW is an ISO 9001 listed company.

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

©Creamer Media 090916CG

• Specialists in various grades of Grey and SG Iron • Sophisticated castings up to 10 500kg • Mass weights and simple castings up to 11 000kg • Non-Destructive Testing performed on Site

Pipes, Pumps and Valves Africa - May/Jun 2019

29

PUMPS

Werner Pumps trucks assist in quest to save Vaal River Two new 100% locally manufactured truck-mounted jetting units built by Werner South Africa Pumps & Equipment (Pty) Ltd will assist the East Rand Water Care Company (ERWAT) in a mammoth project to save the Vaal River.

The river is in crisis thanks to untreated sewerage flowing into it from three water treatment plants. This has poisoned fish, caused blocked drains and has even been flowing into the local community’s homes and streets. The Department of Water and Sanitation (DWS) has set aside R341 million to completely overhaul wastewater treatment infrastructure in the Vaal Triangle. ERWAT has been tasked with ensuring that all wastewater treatment infrastructure is resuscitated to an operational state and to stop pollution of the Vaal River.

The multi-stakeholder project is expected to create 2 000 jobs through a partnership between with COGTA in Gauteng, South African National Defence Force (SANDF), Municipal Infrastructure Support Agent (MISA) and the East Rand Water Care Company (ERWAT) and local municipalities.

As part of its clean-up operations, ERWAT has purchased two truck-mounted jetting units from Werner Pumps. The company has been designing, manufacturing, supplying and maintaining specialist high-pressure jetting equipment for more than three decades.

“It is gratifying to know that our units will be assisting in a project of this nature,” says Sebastian Werner, Managing Director at Werner Pumps. “Because we manufacture the 30

Pipes, Pumps and Valves Africa - May/Jun 2019

trucks ourselves, we are not only able to customise each unit to a client’s needs, but also to ensure we maintain the highest quality standards. We understand that municipalities and water and wastewater management specialists like ERWAT need to be able to rely on their trucks to perform in challenging conditions to meet the needs of the communities they serve.”

Werner adds that the units provided to ERWAT are equipped with remote operating functionality, as well as electronic monitoring. This means greater operator safety and visibility, and also makes for easy maintenance scheduling. Werner Pumps also provides onsite maintenance and 24-hour technical support to ensure the trucks remain in working condition at all times. “We have been ISO9001 certified and are the first in our industry locally to achieve this standard,” Werner says. “And we are now producing recycling units locally too, which means companies now have access to South African trucks – built to the same standards as their European counterparts – but without the headaches of long lead-times on orders or currency fluctuations.”

The recent Truck Body Structure Survey in South Africa, commissioned by Toyota Japan for the Hino division of

PUMPS

Toyota South Africa Motors, confirmed that Werner Pumps meets the required standards of body builders for vacuum tank vehicles in the Hino 500 series. Werner believes this is in part due to implementing ISO9001 standards, and also thanks to the teamâ&#x20AC;&#x2122;s rigorous attention to detail when it comes to the manufacturing process.

Werner Pumps will be exhibiting its specialist high-pressure jetting equipment at IFAT Africa trade fair for water,

sewage, refuse and recycling from 9 to 11 July at Gallagher Convention Centre. Visit them in the outdoor area exiting Hall 5.

Werner Pumps, Tel: +27 (0)11 362-6280, sebastian@wernerpumps.com / karien@wernerpumps.com, www.wernerpumps.com.

Local Sales, spares and repairs are offered by Instruvac (a division of Air & Vacuum Technologies (Pty) Ltd.)

A&VT = ADDING VALUE TOGETHER

info@vactech.co.za

0861 VACTEC (822 832)

www.vactech.co.za

Pipes, Pumps and Valves Africa - May/Jun 2019

31

Curing the causes of cavitation Blackmer® has created a solution in the form of its cavitation suppression liner, which eliminates the vibration, excessive noise and pump-component damage that occurs as the result of cavitation

PUMPS

Introduction Cavitation and net positive suction head (NPSH) issues are common detriments to effective pump operation that are often misunderstood. Entire plant systems can fail unexpectedly as a result of a mechanical-seal or pumpcomponent failure. Plant operators may observe: “it sounds like gravel is being pumped through our pipe” or “the pipe is shaking” or even “the pump components have dissolved into nothing.” When such failures are assessed further, operators often conclude that cavitation and NPSH are ultimately to blame for the seal and pump failure. As a result, all process engineers know that pump-suction design is most critical to ensuring reliable operation of any piping system.

Although NPSH sometimes seems confusing, it can be simplified when viewed as a part of a monetary budget. In the same way that a company may default if withdrawals exceed deposits, a pump may be destroyed if it withdraws more NPSH than the NPSH budget provided by the piping system. In short, a pump should not withdraw more NPSH than what is provided by the piping system. If the pump has a surplus of NPSH (i.e. NPSH required is less than NPSH available), then vapor is not formed and there is no potential for cavitation. Conversely, if the system has an NPSH deficit where the pump withdraws more than what the system provides, then vapor will form and destructive cavitation will occur.

What is cavitation? Cavitation is the implosion of vapor bubbles within the pump’s pressure stages. Cavitation occurs only if vapor exists. Systems without vapor do not cavitate. So where does vapor form? Vapor can form upstream of the pump, within the pump, or both. Pump operators know cavitation as noisy and destructive. When vapor implodes, the liquid walls collapse and produce shock waves of incredible force that cause destruction upon impact. Like a small jack hammer striking a surface at a rate of 10,000 times per second, cavitation shock waves damage all surfaces, no matter the hardness or thickness.

These shock waves can cause excessive vibration and noise within the pump, which can result in significant damage to internal components. This cavitation damage will set off a chain reaction of negative effects that can include loss of operational efficiency, elevated maintenance and partreplacement costs, pump downtime and, in the worst-case scenario, total pump failure.

Cavitation can affect the performance of all pumps.

This white paper illustrates how a specific type of pump technology – positive displacement sliding vane – incorporates a revolutionary technology known as the 32

Pipes, Pumps and Valves Africa - May/Jun 2019

Cavitation Suppression Liner, that mitigates and even eliminates the harmful effects of cavitation.

The Challenge Plant operators and process engineers often focus attention on the pump’s NPSH required. After all, cavitating can be avoided if a pump requires less NPSH than the system’s NPSH budget. Unfortunately, this perspective misses that vapor is often formed upstream of the pump. This is especially true when transferring fluids with high vapor pressures, such as liquefied petroleum gas (LPG), anhydrous ammonia (NH3), gasoline, acetone, various types of refrigerants and condensates, and those that are highly viscous. The vapor pressure of these liquids is greater than any NPSH provided.

In other words, these applications operate at a deficit from the start: the liquid demands more than what the system could ever provide.

Even in low-vapor-pressure liquids like water, lube oil or diesel fuel, the physical system layout may require poor conditions such that the NPSH budget provided by the system is so low that no pump could operate within the allowance.

An NPSH deficit is created in either of the above scenarios. A portion of the fluid transitions to vapor and creates a multiphase or “boiling fluid.” The vapor concentration and size increases as the level of NPSH deficit increases. However, regardless of the vapor concentration or size, the vapor will implode during a pump’s pressure stage, causing violent reactions that are the root-cause of cavitation’s destruction.

There are a number of pumping setup conditions that can result in a dangerous NPSH scenario. These conditions include: • Excessive suction-lift requirements

• Long piping runs • Flow restrictions at the inlet, such as the presence of a piping elbow • A clogged strainer • Partially closed valves that can restrict flow • Unnecessarily high flow velocities that are caused by undersized piping An operator hears destructive cavitation as elevated noise levels during system operation. Vapor-bubble implosions within the pump will make it sound as if the pump is filled with bits of gravel.

PUMPS

If these cavitation-causing conditions are present and allowed to persist, damage to the pump and its components is almost certain to occur. Dynamic components are especially sensitive to cavitation. Specifically, the pump’s mechanical-seal faces will briefly separate as the implosions occur. The shock-wave pulsations create a condition known as “chattering,” which leads to premature wear and failure of mechanical seals. Additional failure should be expected in other wetted parts, such as bushings, impellers, back covers, volutes, casings, heads, gears, idlers and vanes.

While we know that cavitation can be minimized by optimal system design, system engineers should familiarize themselves with a technology that is well-suited for continuous cavitation service. Such technology would minimize or eliminate the destructive effects of cavitation and provide better performance and long pump life.

The Solution As mentioned, the key to eliminating pump cavitation and its harmful side effects is to eliminate vapor. No vapor means no cavitation. Alternately, system engineers can set operational parameters in such a way that the NPSHa (budget) will always meet the NPSHr (consumption). However, most systems require a bulletproof solution designed for the worst conditions – a one-of-a-kind technology designed for unforgiving physical constraints and inevitable vapor formation.

Blackmer®, Grand Rapids, MI, USA, a product brand of PSG®, a Dover company, Oakbrook Terrace, IL, USA, has built a 116year reputation in industrial pump design and operation dating back to 1903. A major element to the Blackmer legacy is its benchmark series of sliding vane pumps, which have been pumping multi-phase liquids since 1954. Blackmer has improved the operation of its sliding vane pumps with the invention of the Cavitation Suppression Liner, which allows them to better transfer multi-phase liquids with high vapor pressures and zero NPSH. The Cavitation Suppression Liner defeats cavitation through a design that defuses or mutes destruction before vapor implodes. In other words, it defuses a bomb before an explosion is triggered. This unique feature creates internal recirculation jets that break apart vapor bubbles before implosion. While the vapor levels are not reduced, the size of each vapor bubble becomes a fraction of what it would have been. The fact is this: smaller bubbles yield smaller implosion reactions.

The Cavitation Suppression Liner also allows a controlled amount of fluid at discharge pressure to bleed back toward the suction of the pump. This breaks the larger vapor

bubbles apart into smaller vapor bubbles before they have a chance to implode. The net result is less noise, less vibration and less wear, which Blackmer verified by conducting sideby-side tests of one of its sliding vane pump models with and without Cavitation Suppression Liners (see Sidebar).

Blackmer offers its Cavitation Suppression Liner as a component on its CRL, LGL, SGL, XL XLW and TLGF (transport pump) Series Sliding Vane Pumps, which are available for use in the handling of a wide variety of fluids in both stationary and transport applications. Each of these pumps is rated to operate under continuous cavitation without any negative effect on pump-component life. In fact, the Blackmer LGL Series propane pumps have some of the highest cavitation levels (in cases of 30%-40% vapor), yet Blackmer offers its best 5-year warranty and 2-year guarantee within this pump series. This unmatched technology from Blackmer allows for continuous operation in extreme environments.

The Blackmer Cavitation Suppression Liner provides system engineers with a zero-NPSH required solution: a pump wellsuited for low to negative NPSHa applications. Blackmer engineers are able to assess any problems in the pumping system. Perhaps it’s an application with numerous systemdesign flaws, such as long piping, undersized piping or tumultuous pipe routing. Most pumping setups would benefit from the operational flexibility provided by the Blackmer Cavitation Suppression Liner.

Pipes, Pumps and Valves Africa - May/Jun 2019

33

Conclusion Unchecked cavitation will harm pumps in many ways, among them excessive wear of internal components, breakdowns, product leakage and compromised operation.

Blackmer found the solution to the negative effects of cavitation through the creation of its Cavitation Suppression Liner, which can be paired with its rotary vane positive displacement pumps. The portfolio of Blackmer cavitationduty products provides unmatched reliability in tough NPSH and high-cavitation applications. If you are struggling with a severe-duty application or problem pipe routing, you Better Get Blackmer.

PUMPS

About the Author: Geoff VanLeeuwen is a Product Manager for Blackmer® and PSG®. He can be reached at geoff.vanleeuwen@psgdover. com. For more information on the full line of Blackmer pumps and compressors, please call +1 (616) 241-1611 or visit blackmer.com. Blackmer, Grand Rapids, MI, USA, is a product brand of PSG®, a Dover company, Oakbrook Terrace, IL, USA. PSG is comprised of leading pump brands, including Abaque™, Almatec®, Blackmer®, Ebsray®, EnviroGear®, Griswold™, Mouvex®, Neptune™, Quattroflow™, RedScrew® and Wilden®. You can find more information on PSG at psgdover.com.

Cavitation is caused when a pumping system's net positive suction head available (NPSHa) is not in balance with the net positive suction head required (NPSHr) can be devastating for pump components and can even lead to system failure.

Blackmer® has found a solution to the challenges of excessive cavitation with the development of the patented Cavitation Suppression Liner, which is available for use on most models of its Sliding Vane Pumps.

The imploding vapor bubbles within a liquid that cause cavitation in a sliding vane pump can lead to deterioration of the vanes (left photo). The difference in a vane that has been subject to excessive cavitation (left, in right photo) is obvious when compared to the appearance of a new vane.

The Cavitation Suppression Liner from Balckmer® eliminates the destructive "chattering" that is a result of cavitating fluids by breaking large vapor bubbles into smaller bubbles before they have a chance to implode. The result is less noise, less wear and less chance that the pump will be susceptible to disruptive failures.

Hearing Is Believing To illustrate how its patented Cavitation Suppression Liner can minimize the occurrence and effects of cavitation in sliding vane pumps, Blackmer conducted side-by-side tests of two of its LGL3 Series Sliding Vane Pumps, one without a Cavitation Suppression Liner and one outfitted with a Cavitation Suppression Liner.

The tests were designed to measure conditions and performance and show how to mitigate cavitation destruction. The test stand featured clear inlet pipe runs leading to the pump. All of the operating conditions were carefully controlled and monitored so that a fair evaluation of multiple pumps could be made under identical settings.

Finally, gauges and valves were used to control the operating conditions with all inlet and discharge pressures able to be viewed in real-time on a computer monitor.

34

Pipes, Pumps and Valves Africa - May/Jun 2019

The first Blackmer LGL3 pump was tested without a Cavitation Suppression Liner. As the pump was operating, a strobe light was used to illuminate the vapor bubbles that were being formed as the fluid moved through the pump.

Also while the pump was operating, a sound-level meter was used to record the amount of noise being produced.

In the case of the pump without a Cavitation Suppression Liner, the sound reading was 106 decibels.

The same test under the same operating conditions was then performed on a Blackmer LGL3 pump that was outfitted with a Cavitation Suppression Liner. By allowing a controlled amount of fluid at discharge pressure to bleed back toward the suction of the pump, the size of the vapor bubbles was reduced, which reduced the amount of energy that is released by the bubbles when they implode. The sound level that was recorded was just 89.6 decibels, much lower than the pump without a Cavitation Suppression Liner.

Remember: decibel is a log-scale. A reduction from 106 to 90 decibels is more than 1-order of magnitude (10x) less.

The unmatched Blackmer guarantees are made possible by such a reduction of destructive energy.

Blackmer has created a video that allows the viewer to see these side-by-side tests and note the findings. The video also explains how cavitation occurs, how it can harm sliding vane pumps and why the use of a Cavitation Suppression Liner is the best way to mitigate cavitation damage.

The pump operating without a Cavitation Suppression Liner produced a noise level of 106 decibels (left) compared to 89.6 decibels for the pump with a Cavitation Suppression Liner Blackmer, info@blackmer.com, www.psgdover.com

The largest and most comprehensive African trade-show dedicated to the industries involved in the conveyance of liquids, gases & slurries

The CAMINEX organized by The Copperbelt, Agricultural & Commercial Show Society which took place in Kitwe Showground, Zambia. It is the premier copperbelt mining, agricultural & industrial trade expo. Thousands of business decision-makers, purchasing influencers and professionals used the trade show to network, exchange ideas, share information and develop partnerships.

Limit switch box for quarter turn valves The Ingelfingen-based valve specialist GEMÜ is launching electrical position indicators for manually and pneumatically operated quarter turn valves.

VALVES

To automate process plants, the GEMÜ LSC limit switch box detects the valve position of manually and pneumatically operated quarter turn valves. This is signalled by an optical indication and transmitted to the plant control system. The GEMÜ LSC position indicator can be fitted to all quarter turn valves, such as butterfly valves or ball valves, with a VDI/VDE 3845 standard interface.

GEMÜ offers solutions pre-installed on GEMÜ butterfly valves or ball valves, but retrofitting is also possible. Up to four position feedback messages can be sent. In addition to simple microswitches, the GEMÜ LSC limit switch is also available with 2-wire or 3-wire proximity switches. It has the protection class IP 67 and is suitable for explosion-proof areas acc. to ATEX and IECEX. The GEMÜ LSC limit switch box has also been checked to ensure the reliability of safety functions and has SIL approval.

A 3D optical position indicator or OPEN/CLOSED LED display is optionally available. A variety of electrical connections are also available, such as an M20 cable gland, an M12 plug or an NPT threaded connection.

Besides the existing GEMÜ LSF inductive dual sensor, the company is expanding its range of electrical position indicators for quarter turn valves with the addition of the GEMÜ LSC limit switch box, therefore enabling quarter turn valves to be integrated and controlled in automated plants.

GEMÜ , Tel: +27 (0) 11 462-7795, viki.besselaar@gemue.co.za, www.gemue.co.za

GEMÜ 481 Victoria butterfly valve with GEMÜ LSC electrical position indicator fitted

C

M

Y

CM

MY

CY

MY

K

Pipes, Pumps and Valves Africa - May/Jun 2019

37

VALVES

More plant uptime with Weir Minerals’ robust, fit-for-purpose valves Abrasive and corrosive slurry can quickly wear out valves and cause costly downtime, unless mines insist on quality OEM (original equipment manufacturer) products that are engineered specifically for their application.

“With our comprehensive range of slurry valves, we can help customers select the right equipment to suit the pressure of their system, the chemical make-up of their slurries, and the physical nature of the solids they process,” says Ronald Govender, general manager – process equipment at Weir Minerals Africa. “We can provide the right wear options, actuation mechanisms and control accessories that will ensure optimal plant uptime.”

Weir Minerals’ Isogate® range of slurry valves is proven to be reliable and versatile, operating under wide pressure and temperature ranges. For longer life, valve sleeves come in a variety of materials including genuine Linatex® premium abrasion-resistant natural rubber. To reduce downtime and overall cost of ownership, all wear parts are easily replaced in the field.

The range includes mechanical pinch valves, with open or closed body, and pneumatic pinch valves with one-piece sleeve or two-piece liner. Isogate® knife gate valves are known for their heavy duty performance, even in coarse slurries, with pressure ratings from 10 to 51 bar. The Isogate® knife gate slurry valves are uniquely designed with both ease of maintenance and low overall cost of ownership in mind and are engineered to handle the harshest and most abrasive process flow conditions.

Weir Minerals’ check valves are single, non-return units that benefit from 20 years of in-field experience in the most arduous slurry applications. Autoball® valves, which are actuated with differential pressures, enable quick changeover between duty and standby pumps.

“An exciting addition to our offering is the Delta Industrial™ range of knife gate valves, which set the standard for high performance in slurries,” says Govender. “These valves guarantee zero leakage, due to their unique transverse seal and shear gate design.”

The innovative design protects the primary elastomer seal from the slurry flow to avoid wear, while a precisionmachined metal seat provides a secondary seal. The transverse seal features an upper and lower scraper, with an elastomer that is energised by a pliable compound – even while the valve is in service. Designed for the most demanding processes, Delta Industrial™ valves have been in use for over two decades in mill circuits, tailings transport, mineral separation and leaching applications for slurries up to 120 bar working pressure.

38

Pipes, Pumps and Valves Africa - May/Jun 2019

The Delta Industrial zero leakage design protects the operator and environment from process fluids.

“We bring a full basket of valve solutions to customers,” he says. “Other valves in our liquid service range include butterfly, diaphragm, globe and trunnion-mounted ball valves.”

Weir Minerals, Rajen Govender, Tel :+27 (0) 11 617-0700, rajen.govender@mail.weir, www.global.weir

AVK Southern Africa’s Academy offers ECSAapproved valve training The two-day training courses consist of two Training Modules, the Valves Fundamentals Course and the Advanced Valves Course, which each contribute 2 CPD points, and is hosted at AVK Southern Africa’s purpose-built Academy in Alberton, Johannesburg.

VALVES

AVK Southern Africa’s training academy has now certified over 700 engineers, distributors and students in South Africa’s only ECSA-accredited valves training courses.

The most holistic and intensive course of its kind in the country, it covers everything from valve testing; installation, operation and maintenance; and manufacturing methodology to applied theories of fluid pressure, fluid flow and field applications. The course material is applicable to the complete range of industries, from water and wastewater treatment and distribution to mining, power generation and oil and gas.

The Academy includes a wide variety of sample valves, as well as an innovative flow lab that provides a hands-on demonstration of valve performance in a water circuit.

Training can also be conducted at customers’ premises, and has been conducted as far north as Zambia.

AVK Southern Africa, Tel: +27 (0) 11 908-3760, academy@avkvalves.co.za, www.avkvalves.co.za

Pipes, Pumps and Valves Africa - May/Jun 2019

39

VALVES

Zero maintenance Wouter Witzel valves reduce production costs and downtime at sugar mill Wouter Witzel butterfly valves from AVK Southern Africa provided substantial costsavings and reduced personnel requirements for KwaZulu Natal-based Umfolozi Sugar Mill (USM).

The savings enabled the company to redistribute finance to other plant instrumentation upgrades and negated the need for specialised valve maintenance personnel. This facilitated the redeployment of these personnel to other plant maintenance tasks. The Wouter Witzel DN700 butterfly valve, installed to regulate flow in one of the plant’s pan discharge applications, remained unaffected by the severity of the production process for more than six years – without any maintenance.

In a letter to AVK, Ravi Vandayar, Technical Manager at USM, stated that: “The superior quality of the Wouter Witzel butterfly valves used in a pan discharge application at USM is noteworthy. Functioning under -95 kPa; at 75° C normal operating temperature and 110° C flash temperatures, the valve in question had a lifetime of more than six years with zero maintenance required. Others are still in service.”

“A unique differentiator that sets Wouter Witzel valves apart 40

Pipes, Pumps and Valves Africa - May/Jun 2019

from competitor products,” explains Keith Hedges, Business Development Manager, AVK Southern Africa, “is that its elastomer liner is fully vulcanised and bonded to the seal body. This provides a 100% leak-free and vacuum-proof seal – both of which are exclusive to the Wouter Witzel brand.”

Zero leakage, zero maintenance USM runs on a seasonal basis and maintenance, therefore, is conducted during off-season plant shutdown. The maintenance inspection subsequent to this valve installation included valve removal, damage inspection and functional scrutiny, which it passed with flying colours. It proved the valve’s durability compared to the wear and tear that competitor valves underwent. Based on these findings, USM took the decision that future maintenance inspections for this specific valve would be reduced to a liner inspection and water test only. The water test is used to determine if there is any seal leakage, and none was ever found.

“This is in line with our, and Wouter Witzel’s, philosophy of ‘zero leakage, zero maintenance’,” says Hedges. “USM was sufficiently impressed with the inspection results that the plant began replacing its existing butterfly valves with Wouter Witzel valves, as and when required.”

Heat resistance and durability

HM

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

CP 7

CP S MP PU

• CP/CPO Series • CP7 Type • Vertical Spindle/ Cantilever Pump • HM Process Pumps • CSW Type • CSY Type • Process Pumps

CS X

MP PU

MP PU

MP PU

The Wouter Witzel butterfly valve range is accredited by the American Petroleum Industry (API); Lloyd’s of London for marine applications; and the South African Gas Association (SAGAS). It also has numerous water-related certifications and is the only rubber-lined butterfly valve worldwide that has a fire-safe certification. “These valves are suitable for the mining, steel, ship-building, oil & gas, desalination, HVAC, power plant and fire-fighting industries,” Hedges says. “In fact, they are specifically designed for high cycle and severe applications.

VERTICAL SP I

Our range of pump products include:

E DL N

Valve accreditation

C

P -C

This range of butterfly valves can be installed in the fully closed position, something which cannot be achieved with regular mounted valve seals. The five year warrantee is five times longer than the industry standard, and is backed by a one-million-cycle guarantee. “Compared to other butterfly valves in the market, ours last three to five times longer than any other similar product,” Hedges enthuses.

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.

PO

Wouter Witzel butterfly valves are heat-resistant, using NBR, EPDM or FPM rubber lining, which offer heat resistance up to 90, 110 or 200° C respectively. High-quality construction materials like ductile iron or cast steel on a single bodied valve; and a Rilsan, Epoxy or Halar coated duplex stainless steel disc contribute to enhanced durability. The disc, centre to the valve’s design, is thinner than conventional valve discs which facilitates increased flow capacity and smaller actuators – if actuation is required. This contributes to increased pump efficiency resulting in lower power requirements.

“The overall cost-saving experienced in plants using these valves is a lot more than appears at face value,” points out Riaan Kloppers, Director – Industrial, AVK Southern Africa.

“Some project engineers are of the opinion that, as valves required in a project constitute only between 1% and 3% of the cost, they needn’t pay too much consideration to this aspect of the project. They have not considered that valve failure results in downtime, a costly exercise for any plant.

Considering high-quality, durable valves for these projects results in a significant financial saving over the medium- to long-term.”

In line with its commitment of adding value to its clients in all aspects, AVK Holdings established an in-house training Academy in September 2016. “The Academy has trained and raised the skills and technical capability of our employees, clients, distributors, students and engineers in understanding valves and their applications,” Kloppers concludes. “We consider this a value offering beyond that of any tangible Rand value offering.”

AVK Southern Africa, Tel: +27 (0) 11 908-3760, sayuri@avkvalves.co.za, www.avkvalves.co.za

ww w.sa meng.co.za

Real value

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

Industrial Valves Summit brought together all decision makers involved in valve technologies and flow control solutions. The event attracted the entire supply chain of the valve industry and is held every two years

New manifold valve design for pressure transmitters improves ergonomics and reliability transmitter, the components are fully assembled and high-pressure leak tested at the factory. This allows the transmitter to be installed right out of the box, saving time and money.

VALVES

Pressure-Lock™ Valve featured on the new Rosemount™ R305 and R306 manifold product family provides easier operation while enhancing reliability and safety.

“Pressure transmitter manifolds often don’t get much attention, but users understand how vital they are for effective operation,” says Scott Nelson, vice president and general manager for Emerson’s Rosemount pressure products. “Emerson takes all these elements seriously and introduced this improved offering to make this critical operation easier and safer for technicians who work with these products every day,” adds Nelson.

Emerson has introduced a new manifold product family for its Rosemount pressure transmitters. Manifolds shut off or equalize pressure at the transmitter, and also provide the critical mounting mechanisms required in many installations. The Rosemount R305 Integral Manifolds and Rosemount R306 In-line Manifolds have been designed to offer significant user improvements on these basic functions.

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

The most important improvement for both manifolds is the new Pressure-Lock Valve design which simplifies high-pressure operation, increases safety and enhances reliability. New features include: • Two-piece stem does not rotate in the seat, providing solid closure with minimal wear.

• Easy to turn while delivering positive shut-off.

• Adjustable packing nut simplifies valve maintenance.

• Stem and bonnet threads are fully isolated from the process fluid to minimize potential corrosion.

• Modular packing ensures only the stem and body are exposed to the process fluid.

•Larger internal passages to enhance reliability.

The Rosemount R305 is designed for both differential or gauge pressure applications and mounts directly to any Rosemount Coplanar™ Transmitter for a complete solution. This reduces the number of potential leak points by 50 percent compared to traditional bi-planar transmitter setups. Two-, three- and five-valve configurations are available.

The Rosemount R306 is designed for in-line pressure transmitters for gauge or absolute pressure applications.

When a Rosemount R305 or R306 is selected with a Pipes, Pumps and Valves Africa - May/Jun 2019

43

PUMPS AIR OPERATED DOUBLE DIAPHRAGM PUMPS

Cyclone Industries T: +27 (0) 11 821 5900 F: +27 (0) 11 825 7707 E: reception@cyclonesa.co.za W: www.cyclonepumps.co.za

Walter Meano Engineering VersaFlo VSE Pumps T: +27 (0) 11 873-8620 F: +27 (0) 11 825-1401 E: wme@mweb.co.za W: www.versaflo.co.za BOREHOLE PUMPS

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

Sulzer Pumps (South Africa) (Pty) SAM Engineering T: +27 (0) 11 823-4250 Ltd T: +27 (0) 11 820 6000 F: +27 (0) 11 820 6206 E: CSSEnquiries@sulzer.com W: www.sulzer.com DEWATERING PUMPS

T: +27 (0) 11 723-6500 E: info@franklin-electric.co.za W: www.franklin-electric.com CENTRIFUGAL PUMPS

Atlas Copco T: +27 (0) 11 821 9000 E: wendyb@za.atlascopco.com W: www.atlascopco.co.za

Ernest Electro Engineering

METERING PUMPS

Atlas Copco T: +27 (0) 11 821 9000 E: wendyb@za.atlascopco.com W: www.atlascopco.co.za

Sulzer Pumps (South Africa) (Pty) Ltd T: +27 (0) 11 820 6000 F: +27 (0) 11 820 6206 E: CSSEnquiries@sulzer.com W: www.sulzer.com END SUCTION PUMPS

SAM Engineering

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 HORIZONTAL SPLIT CASE PUMPS

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

T: +27 (0) 11 723-6500 E: info@franklin-electric.co.za W: www.franklin-electric.com PLUNGER 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

Franklin Electric T: +27 (0) 11 723-6500 E: info@franklin-electric.co.za W: www.franklin-electric.com

HCP Pumps T: +27 (0) 11 452 8116/7/9 C: +27 (0) 82 416 6322 E: gerhard@hcppumps.co.za W: www.hcppumps.co.za

PISTON PUMPS

KSB (Pty) Ltd 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

Sulzer Pumps (South Africa) (Pty) Ltd

Cyclone Industries

T: +27 (0) 11 820 6000 F: +27 (0) 11 820 6206 E: CSSEnquiries@sulzer.com W: www.sulzer.com

T: +27 (0) 11 821 5900 F: +27 (0) 11 825 7707 E: reception@cyclonesa.co.za W: www.cyclonepumps.co.za

Pipes, Pumps and Valves Africa - May/Jun 2019

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

Franklin Electric

KSB (Pty) Ltd

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

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

SUBMERSIBLE PUMPS

KSB (Pty) Ltd

44

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

APE Pumps

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

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

Unique Engineering

SLURRY PUMPS

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

Franklin Electric

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

POSITIVE DISPLACEMENT PUMPS

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

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

PUMPS TRASH PUMPS

VALVES VERTICAL SPINDLE PUMPS

BALL VALVES

Tectra Automation 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

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) 11 821 9000 E: wendyb@za.atlascopco.com W: www.atlascopco.co.za

Walter Meano Engineering VersaFlo VSE Pumps T: +27 (0) 11 873-8620 F: +27 (0) 11 825-1401 E: wme@mweb.co.za W: www.versaflo.co.za VERTICAL TURBINE PUMPS

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

Sulzer Pumps (South Africa) (Pty) Ltd T: +27 (0) 11 820 6000 F: +27 (0) 11 820 6206 E: CSSEnquiries@sulzer.com W: www.sulzer.com WASTEWATER PUMPS

VERTICAL SUMP PUMPS

CHECK VALVES

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

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

Pleix-Quip T: +27 (0) 11 736 4994 F: +27 (0) 11 736 6130 E: tiaans@pleixquip.co.za Web: www.pleixquip.co.za BUTTERFLY 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

Pleix-Quip T: +27 (0) 11 736 4994 F: +27 (0) 11 736 6130 E: tiaans@pleixquip.co.za Web: www.pleixquip.co.za CONTROL 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

Macsteel T: +27 (0) 11 838-4028 C: +27 (0) 82 823-7703 E: thanesh.padayachee@macsteel.co.za W: www.macsteel.co.za

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

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

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

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

VAG-Valves South Africa Klamflex Pipe Couplings KAYTAR Valves T: +27 (0) 21 987 8292 C: +27 (0) 81 555 5288 E: clinton@kaytarvalves.co.za Web: www.kaytarvalves.co.za

Pleix-Quip T: +27 (0) 11 736 4994 F: +27 (0) 11 736 6130 E: tiaans@pleixquip.co.za Web: www.pleixquip.co.za

T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: o.galazka@vag-group.com W: www.vag-group.com DIAPHRAGM 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

Pipes, Pumps and Valves Africa - May/Jun 2019 45

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

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

Valcon Valve & Controls 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) 16 976-1787/8/9 E: info@everyseal.com W: www.everyseal.com

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 REPAIR VALVES

Ainsworth Valves Everyseal T: +27 (0) 16 976-1787/8/9 E: info@everyseal.com W: www.everyseal.com KNIFE GATE VALVES

Everyseal

T: +27 (0) 11 838-4028 C: +27 (0) 82 823-7703 E: thanesh.padayachee@macsteel.co.za W: www.macsteel.co.za PIPES

Rotork

T: +27 (0) 11 821 5900 F: +27 (0) 11 825 7707 E: reception@cyclonesa.co.za W: www.cyclonepumps.co.za

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

ACTUATORS

Macsteel Everyseal

C.R.I Pumps S.A. (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

T: +27 (0) 11 453-7537 F: +27 (0) 11 453-6056 E: valconsa@iafrica.com Web: www.valcon.co.za PLUG VALVES

GATE VALVES

Cyclone Industries

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

Everyseal T: +27 (0) 16 976-1787/8/9 E: info@everyseal.com W: www.everyseal.com SAVETY & RELIEF VALVES

T: +27 (0) 16 976-1787/8/9 E: info@everyseal.com W: www.everyseal.com

T: +27 (0) 11 453-9741 F: +27 (0) 11 453-9894 E: reshmita.singh@rotork.com Web: www.rotork.com HYDRAULIC TOOLS

Kiloton T: +27 (0) 861 707-707 F: +27 (0) 861 707-706 E: sales@kiloton.co.za W: www.kiloton.co.za W: www.onlinetoolshop.kiloton.co.za MANUAL

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

Macsteel

Invincible Valves (Pty) Ltd

T: +27 (0) 11 838-4028 C: +27 (0) 82 823-7703 E: thanesh.padayachee@macsteel.co.za W: www.macsteel.co.za

T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za 46

Pipes, Pumps and Valves Africa - May/Jun 2019

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

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. Scrutto Branch Manager: R. Dye Company Secretaries: Winhold Limited Reg No 1945/019

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

Connecting Global Competence

IFAT Africa 2019 Africa's leading trade fair for water, sewage, refuse and recycling.

July 9 - 11, 2019 â&#x20AC;˘ Johannesburg Gallagher Convention Centre, Midrand

Donâ&#x20AC;&#x2122;t miss Africa's leading trade fair for water, sewage, refuse and recycling!

IFAT Africa brings together industry leaders across the water, sewage, refuse and recycling sectors, as well as the food & drink and analytics industries, to showcase the latest in technologies, processes and thought leadership. Vist IFAT Africa for: Advanced technologies and solutions by over 100 top local and international brands International innovations and trends precisely tailored to the local market Master classes on topical issues Networking with up to 6,000 stakeholders across related sectors In co-location with:

food & drink technology Africa

www.ifat-africa.com

Treat your water-energy like gold Unmet efficiency with up to 10%-20% energy cost reduction Super high flow rate Designed for superior cavitation resistance High regulation capabilities

+27 (0)11 383 4000 www.macsteel.co.za