Pumps and Valves Sept/Oct 2017 by Lifting Africa

ENDORSED BY SAPMA , SAPSDA, SAVAMA, AND VAMCOSA

Sept / Oct 2017

Pipes, Pumps and Valves Africa - Sept/Oct 2017

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More than 100 yearsâ&#x20AC;&#x2122; service

Pipes, Pumps and Valves Africa - Sept/Oct 2017

CONTENT ENDORSED BY SAPMA , SAPSDA, SAVAMA, AND VAMCOSA

INDUSTRY NEWS SAPSDA Calls for change that embraces transformation

Quality water management starts with quality pumps

Pipes, Pumps & Valves Africa Golf Day

Sept / Oct 2017

PUMPS Flexibility in maintenance package should be infinity

A short history of Agrico

SA water treatment infrastructure to benefit from patented polymer system

BMG World official opening

Eight Sykes dewatering pumps to coal mining operation

Magnetâ&#x20AC;&#x2122;s new Schneider Altivar Easy 610 variable speed drives for fan and pump applications 20 Pump refurbishment package focuses on energy efficiency

Hydra-Cell metering solutions

New electronic control added to Parker Hannifinâ&#x20AC;&#x2122;s P2/P3 series of axial piston pumps

Why mines should be pumping slurries with a perstaltic pump

To trim or not to trim impellers

Atlas Copco liquid ring vacuum pumps - resource conserving plug and play solutions

Aqua Services & Engineering installs two largest trickling filter sewage treatment plants in Namibia 30 Reduce solid particle erosion damage & avoid downtime with thermal spray coating technology

Side Channel & Roots type blowers for wastewater treatment

VALVES Forces required to close pinch valves at high pressures

The importance of valve selection in slurry applications

PIPES Bosch Ulwazi and Transnet Pipelines celebrates ISO certificate of ESDs 39 Usuthu Water Perification Plant expands for increased output

MARKET PLACE

BUYERS GUIDE PUMPS BUYERS GUIDE VALVES

43 45

On the cover Rapid Allweiler

Tel: +27 (0) 11 573-7400 Email: g.hillier@rapidpumps.co.za Web: www.rapidallweiler.co.za

Pumps & Valves Africa

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

Index to Advertisers

Actom 23 Agrico IFC APE 27 AR Controls 13 Corflex Engineering 36 Horma Pumps 33 Invincible Valves 7 KSB 19 Monitor Pumps & Systems 29 Quantum Foundry OBC Rapid Allweiler OFC Sam Engineering 25 SAPSDA 5 Tri-Pump 39 VAMCOSA IBC

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 - Sept/Oct 2017

APSDA APSDA News News

SAPSDA Calls for change that embraces transformation The South African Pump Systems Development Association (SAPSDA) has a main focus to develop the pump industry, not only in South Africa but in all Southern African countries.

he large pool of members of SAPSDA, have the expertise to assist in solving problems covering all facets of the industry and raise the bar when it comes to strategies that will enable the development of transitional values that will enhance the level of employment especially amongst the youth. Training is the main driving force in the development of the pump industry in Southern Africa, as the SAPSDA training course covers every aspect of the pump industry, focussing on Pump Systems, as well as Seals, Electric motors, Couplings and Drives. In an interview with Gareth Langton, Chairman of SAPSDA, he expounded on the values of working together as an industry to find solutions to sustain the industry locally, otherwise imports will thrive and some smaller companies may be forced to close as a result. “For too long now and going back to the era of the previous government the industry has benefitted from the advantages which were evident in our society. It is now time to give back to the community by embracing change and by so doing make it possible to escalate transformation. The demands of inclusion should be enough motivation to establish a balance between capital investment and skills development. The disagreement between associations should be exchanged for a common cause and even to the extent of having one association which will combine the industry into a stronger force that will lead the march to transformation,” said Gareth Langton.

“Instead of being afraid of transformation, collectively we need to embrace change and by so doing, as one body, we can control the pace by formulating a game plan otherwise the government may dictate the pace to us, thus creating a state of panic in the industry. The industry has for many years relied on the skills of the current generation which is slowly dwindling, so what better time to introduce skills development by embracing the youthful talent, streaming from the education system every year”, added Langton.

to change and embark on self evaluation and which ultimately open the doors for investment from Black industrialists to enter a local manufacturing industry as opposed to merely relying on imports,” concluded Gareth Langton.

“It is not sufficient to merely have a BBBEE certificate on the wall but it is important to drive the way forward, encouraging people

Contact Gareth Langton, Klinger South Africa, Tel +27 (0) 11 840-8300, gareth.langton@klinger.co.za

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Gareth Langton.

INDUSTRY NEWS

Quality water management starts with quality pumps The South African Pump Manufacturers Association (SAPMA) was established 54 years ago and was registered as an employers’ organisation in 1981, and is federated to the Steel and Engineering Industries Federation of Southern Africa (SEIFSA). One of the primary objectives is to look after the interests of the pump manufacturing companies in South Africa.

he primary membership of the SAPMA includes members who are actively engaged in the manufacture, fabrication and/or assembly of pumps. Provision is also made for Second, Associate/Individual and Affiliate Membership. One of SAPMA’s primary members, SPP Pumps has led the design and manufacture of centrifugal pumps and engineered pumping solutions for over 130 years.

Engineered to save

SPP Pumps operates R&D, manufacturing, test facilities and service sites in the UK, USA, India, France, South Africa, UAE and Egypt, and local sales offices in Singapore, Italy, Poland, Holland and The Czech Republic. Over 500 staff, including 50 specialist engineers, ensure round-the-clock advice and support for critical pumping operations.

Over the last 15 years life cycle cost analysis and total expenditure (Totex) considerations have changed the way operations view capital projects to replace pump systems and plant. The rising cost of energy, government levies imposed on CO2 production and the expense of service outages mean that, in most instances, capital cost is barely 10% of the total life cycle spend.

Exceptional pump hydro engineering. British designed and custom-built

Incorporating both split case and vertical suspended bowl pumps, SPP Pumps’ Lowest Life-cycle Cost range has been engineered to provide the most efficient, minimal maintenance, lowest cost solution over a pump’s typical 25-year lifetime.

Designed and developed specifically for the varying applications and continuous operation demands of the water industry SPP Pumps products ensure compliance with mandatory UK and European regulations and approvals such as WRAS (the Water Regulation Advisory Scheme), DWI (the Drinking Water Inspectorate), ACS (Attestation de Conformité Sanitaire) and the EuP (Energy Using Products) directive.

The full lifecycle support of a pump Routine mechanical maintenance significantly improves pump reliability. But so do other factors. Poor or incorrect installation, poor pump and system matching or changing operating parameters after commissioning can all lead to premature problems and potentially costly failure or down-time. Pump installation is a specialist skill not always available from general mechanical installation companies. SPP Pumps offers a full installation and commissioning service including supervising the installation process. Every pump is tested in SPP Pumps’ own extensive facility, rigorous duty tests, witnessed by customers and contractors where required, ensure the performance criteria are met. Boasting a 1,2 million litre well six metres deep, engineers can test pressures up to 50 bar; flows up to 2000 l/s; and at 50 Hz powers up to 800 kW at 415 V and 2 MW at 11 kV, 10 kV, 6,6 kV, 5 kV, 3,3 kV - with generators available for even higher powers or voltages.

Multi-stage pumps Ideal for high head applications, SPP’s range of Horizontal and Vertical Multistage pumps is designed for applications that require a heavy duty long life pump. A variety of construction material 6

options and generously rated bearings meet the demands of both water and industrial applications. CFD-tuned hydraulics and state of the art manufacturing techniques optimise efficiencies and minimise running costs, whilst rigid, heavy duty, fabricated steel baseplates prevent distortion. Configuring ring section diffuser casings in either horizontal or vertical configuration.

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Lowest life-cycle cost range Around 13% of the UK’s total annual electricity is consumed by pumps. SPP’s Lowest Life-cycle Cost pump range has the potential to save millions of pounds and dramatically reduce carbon footprint. Benefits include: • Superior operating and energy efficiency • Extended bearing and seal life expectancy • Minimised shaft deflection across a wide operating range • Ease of maintenance designed-in With energy costs alone accounting for up to 90% of Totex, annual power and CO2 savings with lowest life-cycle products, especially for large pump systems that run continuously, are substantial. For example, a 1% efficiency improvement on a 200 kW pump will save per annum the CO2 equivalent to a car driving 20,000 miles. SAPMA endorses its member’s success and aptitude to be innovative, key industry players, the association promotes ethical business practices and takes on projects that are designed to benefit the industry. SPP pumps is an example of the calibre members the association hosts.

From the desk of Pamela du Plessis, Managing Director of Invincible Valves

Water and Sanitation Around the World

Invincible Valves (Pty) Ltd 33 Shaft Road, Knights, Germiston TEL: +27 (0) 11 822 1777 | FAX: +27 (0) 11 822 3666 EMAIL: enquiries@invalve.co.za | WEB: www.invalve.co.za

2.64 Billion people do not have access to adequate sanitation. 780 Million people do not have access to improved water sources. More than 800 Children die Daily due to preventable water and sanitation-related diseases! These statistics are rather disturbing, so the question is simple ... how do we set sustainable development goals for our country? World leaders have agreed to 17 Global Goals that would mean a better life for all of us. The goals are a plan to build a world where children don't go to bed hungry, where girls get the same opportunity to thrive as boys, and where people don't die of preventable dieseases. It's one of the most incredible to-do lists ever written. The challenge is to turn these words into actions. If we focused on the availability and sustainable management of water and sanitation consider this: More people have access to mobile phones than a toilet - a staggering 2.5 billion don't have decent sanitation facilities. This isn't just inconvenient, but instead deadly! Diseases caused by dirty water and poor sanitation kill every minute of every day. In parts clean water is hard to find, it's overwhelming to imagine people spending hours every day walking miles to fetch water. Achieving this goal could change that, it would not only reduce illnesses it would help getting children into school and free up adults time which could boost the global economy by R416 billion a year. As long as poverty, injustice and gross inequality exist in our world, none of us can truly rest. Nelson Mandela

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Pipes, Pumps & Valves

Pipes, Pumps and Valves Africa hosted a successful Golf day on the 14th of September 201 of the pipes, pumps and valves industry. We would like to thank all players and sponsors for Four Balls: In-Quest Investigations, Integrated Pump Rentals x 2 , AfriValve, Zest WEG Grou FLSmidth Krebs, Grundfos, Aintsworth, Leviâ&#x20AC;&#x2122;s Trio Engineering, Gauteng Pumps, Prochem P Sponsors: Invincible Valves, SPP Pumps, SAM Engineering, AfriValve, Integrated Pumps, FL

Pipes, Pumps and Valves Africa - Sept/Oct 2017

s Africa Golf Day 2017

17 at ERPM Golf Course Boksburg. A fun filled day spent with suppliers and manufacturers r attending the day, without you it wouldn’t have been possible! up x 2 , First Seal – Controlled Liquid Systems x 3 , Process Pipes, SAM Engineering, Pump Manufacturing, Buccaneer Pumps, Rapid Allweiler , Pipes, Pumps and Valves Africa. LSmidth Krebs, Controlled Liquid Systems, In-Quest Investigations, Supply Networx Africa

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Flexibility in maintenance package should be infinite PUMPS

To allow each mining customer to choose the most effective maintenance strategy for its particular conditions, Weir Minerals is offering ‘infinite flexibility’ in its range of solutions to keep its equipment operating at the lowest cost per ton over its full life cycle.

ccording to Kobus Fourie, Global Services Manager for Weir Minerals, there is a refocus in the world of maintenance, as the mining industry gains a better understanding of the value of total asset management carried out by the original equipment manufacturer (OEM). “The involvement of the OEM in ongoing plant maintenance can really make a difference to reliability while reducing maintenance costs in the long term,” says Fourie. “So, to ensure that every customer can take advantage of these benefits, Weir Minerals is extremely flexible in how we structure our support to suit any environment.” These maintenance arrangements include a cost-per-ton model, which allows mines to budget a set premium for a predetermined production rate. Another option is the repair-andexchange model, where the OEM keeps key stock related to the specific customer’s requirements, so it can supply what would normally be long lead time items in just a few hours. He highlights that the OEM supplier is in the best position to understand and support their products optimally, and this is recognised by most mining companies, who will closely link their own maintenance programmes to the aftermarket services that the OEM can provide. “Through our service capacity, OEM’s are playing an increasingly important role in mining,” he says. “We can do this because our knowledge base – earned through extensive and ongoing investment in research and development – is well established.”

Kobus Fourie, regional service manager at Weir Minerals Africa.

The OEM’s focus is on the capabilities and life cycle of their products, and the customer can use this focus to their advantage. “The benefits of having an OEM maintain their own equipment far outweighs the costs, especially if you take into account the indirect cost of downtime due to the more frequent breakdowns often resulting from the use of a nonOEM part, for example,” he says. He also emphasises the safety aspect of good maintenance strategies, reiterating the importance – for both the OEM and the customer – of a safe working environment in the plant. “If you start to alter a product with non-OEM replacement parts, it can not only put the reliability and integrity of the equipment at risk, but also the safety of the people that work around the equipment,” he says. Fourie acknowledges that applying a long term approach to maintenance is not always easy in the mining sector, as volatility in commodity prices creates uncertainty around the life-of-mine expectations at many operations. 10

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Weir Minerals Africa offers a variety of maintenance options focusing on total solutions.

PUMPS

The repair and exchange model offers customers key stock availability in just a few hours.

Weir Minerals Africa service personnel maintain customers’ equipment to ensure lowest production cost.

“A more stable outlook allows mines to make better decisions about investing in the longevity of their critical-path plant and equipment,” he says. “Nonetheless, the key differentiator among mining competitors is a systematic approach to maintenance that can be applied irrespective of the prevailing economic climate.” Weir Minerals pushes the envelope with maintenance options, to place the focus on total solutions. This, in his opinion, is what the mining industry needs; mines should be allowed to focus on their core business, which is to process minerals, while OEMs should support that objective by maintaining and operating their equipment to ensure lowest cost production.

“We have also joined forces with industry leading innovators Dell and Microsoft to develop cutting edge condition monitoring as part of our maintenance offering, so that we can take preventative maintenance to the next level,” says Fourie. “In time, we will be able to predict equipment failure, and apply interventions before such failure occurs; this will provide further savings to customers by avoiding lost production due to unscheduled downtime.” Contact Rene Calitz, Weir Minerals Africa, Tel +27 011 929-2622, rene.calitz@mail.weir, www.minerals.weir Pipes, Pumps and Valves Africa - Sept/Oct 2017

A Short History Of Agrico On February 4, 1896 Paul Andrag arrived in Cape Town, South Africa, having left Germany to work for the Moravian Mission near Caledon. His task was to manage the trading store at Genadendal.

PUMPS

uring 1904 he started his own business in Cape Town and subsequently transferred to Saron, situated between Gouda and Porterville in the Cape and continued with a trading store. Paul noticed that the local farmers faced many problems due to a lack of proper equipment. He knew that European agricultural machinery could solve some of these difficulties and began to import equipment to sell locally. Well-known agencies were acquired, including Lanz Tractors, Perrot Irrigation, Deutz Engines, John Deere Tractors, Fahr Combines, KSB pumps and others. In time, his sons joined him in the business and many pioneering ideas were introduced to South Africa by them. Some of these are: The first rubber-tyred tractor, the first sprinkler irrigation, useful varieties of plants (Including Lupins and Serradella), some of the first locally manufactured ploughs, the first locally made irrigation tubing and many more. By the time the second world war had ended, all five sons of Paul were active in the business, which was then called P Andrag & Sons. In 1950 Agrico Machinery (Pty) Ltd was founded to resume importation of Lanz Tractors. The branch network of Agrico grew steadily to follow the demand for its products. During 2000 the shareholders merged the Andrag and Agrico companies into one, larger group. This was done to make use of synergies in manufacturing, marketing and distribution. In 2016 Agrico decided to sell the machanisation devision (comprising various agencies) in order to focus on Agrico's own manufactured products and it's water related business. Today there are 28 branches in Southern Africa, of which 2 in Zambia. Three factories produce implements, agricultural tractors, industrial tractors, centre pivots, quick coupling pipes, PVC pipes, polyethylene pipes, drippers, micro jets, aluminium and iron castings, electric valves and crop sprayers. The 4+Series of tractors

was developed, with sales to farmers commencing in 1986. The cumulative production exceeds 600 tractors. The manufacture of centre pivots was started in 1988 and is done in an integrated factory that features on-site galvanising. Currently five shareholders, who are all university graduates, are active in the day to day management of the company Therefore three successful generation successions have taken place, often a critical stage for a family business. Our company currently employs over 900 people, and has annual sales exceeding 1 Billion Rand.

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Our management style can be characterised as conservative. This philosophy coincides with that of our main customers, the farming community, construction and industrial companies. These customers generally have a low mobility and tend to favour long-term business relationships, based on mutual trust. AGRICO: More than 100 yearsâ&#x20AC;&#x2122; service! Contact Alfred Andrag, Agrico, Tel: +27 950-4111, www.agrico.co.za Cell: +27 82 824 1214

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

SA water treatment infrastructure to benefit from patented polymer system PMPS, leading packaged metering and pumping solution provider in South Africa, is soon to launch Italian OBL Polisol automatic polymer preparation plant to the South African market.

sed in water and waste water treatment plants, the system’s unrivalled wetting-in capabilities mean better, higher quality yields of the world’s most precious resource: water. Water is fast becoming central to the South African economy – and way of life – a fact that necessitates a rethink about how efficiently this resource is processed, used and reused. Packaged Metering & Pumping Solutions’ (PMPS) Technical Director, David O’Neill comments, “There is now an increasing need for improved water treatment infrastructure in South Africa, which is why we

have decided to introduce the OBL Polisol system to the country.” The Polisol system comprises automatic plants for continuous preparation of dosing of dry polymer. Used to prepare and mature dry polymer beads or powder by dissolving it into water to form a uniform and consistent concentration of polymer solution, the system is predominantly utilised in water and waste water plants to aid in the aggregation of small suspended particles to form a floc for filtering or settling out.

Fig. 1:The polisol system comprises automatic plants for continuous preparation of dosing of dry polymer.

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

Fig. 2: The system can be used with any existing water and waste water treatment.

Fig. 3: The system is predominantly utilised in water and waste water plants to aid in the aggregation of small suspended particles to form a floc for fillering or settling out.

While there are many polymer systems available in South Africa, the Polisol system comes with a number of distinctive advantages. “The main differentiating factor between the Polisol system and others is the initial point at which the dry polymer is wetted. The device has to ensure that the polymer beads are constantly wetted, or it will form lumps and ‘snake eyes’, which both hinder the treatment process,” remarks O’Neill. “OBL’s patented wetting-in device uses a vortex and venturi to keep this from occurring, ensuring a high-quality dilution,” he says.

technology. “With higher demand for the system, we will consider manufacturing locally, which will have a knock-on effect in terms of employment creation and skills training,” says O’Neill. “For now, we have a trained and highly qualified team of service technicians and engineering staff ready to offer customers support and expertise on the Polisol system at short notice,” he adds.

The OBL Polisol range includes the AISI 304 Tank & Hopper as well as the PP Tank with AISI 304 Hopper. Standard units with either two or three compartments are able to provide from 450 to 10 000 litres/hour output per day of 0,5 % polymer solutions. Mimic control panels make the system easier to start up and control and forced dilution takes place by means of a dilution funnel with built-in venturi system. Plants can also be combined on demand to accommodate for both dry and liquid polymer and optional local pneumatic filling system.

With capital buy-in between R130 000 and R500 000 on the Polisol system, depending on the size and configuration of the system, PMPS is able to customise the system to suit the desired application. “We have the capability to provide a skid system including dosing pumps, flowmeters and valves, for example, to render the system fully functional as a standalone plant,” O’Neill comments, concluding, “There is no more pressing time than the present for South Africa to take a proactive stance on its water and waste water treatment infrastructure. With its high-quality hardware, superior yields and customisable features, the Polisol system represents the means to a clearer, cleaner future for South Africa’s water supply.”

The Polisol system, originating from Italy, has been manufactured and used in Europe for over 30 years, during which time it has evolved in line with advancements in

Contact David O’Neil, PMPS, Tel: +27 (0)11 395 2422 Cell: +27 (0)71 850 6489, sales@pmps.co.za www.pmps.co.za

Pipes, Pumps and Valves Africa - Sept/Oct 2017

BMG World official opening BMG marked the official opening of the recently upgraded ‘BMG World’ distribution and engineering facility in Johannesburg, by hosting a two day expo in September for suppliers, customers, the press and staff.

PUMPS

“

This high profile event, which included site tours, product exhibits and working demonstrations, showcased how BMG integrates its vast product range and extensive technical services, into tangible operational efficiencies,” says Gavin Pelser, managing director, BMG, part of Invicta Holdings Limited. “The reveal of BMG World was the culmination of a consolidation and supply chain re-engineering strategy, which began nearly 10 years ago. The company’s R400million investment to upgrade the existing Droste Park facilities into a leading edge distribution centre, centralises functional and support operations onto one site. Through this rationalisation initiative, BMG strives to achieve cost optimisation, improve regionalised branch office systems, thereby enhancing customer service capability. “Visitors were impressed by the enormity of our operations, our comprehensive product range and our extensive service offering. BMG has expanded dramatically since 1974 when it was established as a single bearings shop in Durban. Today the company has more than 148 BMG branches and a wide distribution network in South Africa and across borders into nine African countries. “The BMG team remains committed to being a customer driven business, focusing not only the supply of quality components, but more importantly on providing world class integrated engineering solutions to diverse industries.” The BMG World distribution facility processes approximately 4 500 transfers to branches daily and moves more than 1 000 T of product per month, using

Pipes, Pumps and Valves Africa - Sept/Oct 2017

advanced lifting and conveying equipment. The automated warehouse management system controls over 300 000 line items moving through the 308 000 m³ warehouse. This upgraded facility enables BMG to continue to provide high levels of operating efficiencies and delivery service, in line with continued growth of the business.

PUMPS

In addition to its central distribution function, BMG World also houses the company’s specialised operations, including the fluid tech and engineering facilities, technical resources and field services. The upgraded premises also include significantly expanded training facilities in the customer service centre for the BMG Academy of Excellence. The company recognises the need to grow engineering skills, not only for its own succession requirements, but also for the development and sustainability of African economies. BMG’s extensive product portfolio now encompasses bearings, seals, power transmission components, drives, motors and materials handling components. Also in the range are hydraulics and pneumatics, fasteners and tools, as well as valves, filtration and lubrication systems. A cornerstone of BMG’s solutions service is 24 hour reliability engineering – a philosophy aimed at keeping plant in full productive output for as long as possible, without unnecessary maintenance or unplanned stoppages. Contact Lauren Holloway, Corporate Communications, BMG Tel: +27 11 620 7597 Fax: +27 086 670 3000 laurenhy@bmgworld.net www.bmgworld.net Pipes, Pumps and Valves Africa - Sept/Oct 2017

Eight Sykes dewatering pumps to coal mining operation PUMPS

Integrated Pump Rental reports that one of its surface coal mining customers recently purchased eight Sykes CP 150 self-priming diesel driven pumps from the company.

ee Vine, managing directors of Integrated Pump Rental, says that most significantly the order was placed following a short term rental solution provided to the mine during the rainy season. “Dewatering remains a critical activity in opencast mining operations and we were able to assist this customer at short notice over a weekend,” Vine says. Within hours of having received the request for assistance Integrated Pump Rental had supplied and installed eight diesel driven pumps with 2000 metres of lay-flat hose. Integrated Pump Rental focuses on providing fit-for-purpose dewatering solutions to industry and Vine stresses that it is not just about moving pumps into the market.

Integrated Pump Rental reports that one of its surface coal mining customers recently purchased eight Sykes CP 150 self-priming diesel driven pumps from the company.

“The Sykes pumps, which were hired out to the mine, were selected because we knew these units would be able to deal with the volume of water that needed to be transferred, and we were confident that the pumps would offer the reliability required,” Vine says. The Sykes CP 150 self-priming diesel driven pump offers a maximum head of 60 metres with a flow rate of 172 litres per second. It is also capable of handling solids with a particle size of up to 77 mm. “To put this dewatering capacity into perspective, one pump would be capable of draining the London 2012 Olympic Swimming Pool in just four hours,” Vine says. The eight pumps are trailer mounted for ease of movement, and offer the mine the versatility of being able to move the units to where they are needed on the mine site. The Sykes pumps feature cleverly designed automatic priming capabilities based on a Venturi system that can 18

The Sykes CP 150 self-priming diesel driven pump offers a maximum head of 60 metres with a flow rate of 172 litres per second.

deliver suction lifts of up to 9 metres. The robust construction of the pumps ensure optimum reliability as well as long life, and importantly the pumps are fully automatic priming allowing the units to run dry for extended periods of time without damage. Integrated Pump Rental was appointed as the official Sykes distributor for Southern Africa just over 15 months ago and the company has already established a strong product reference in Africa. Contact Lee Vine, Integrated Pump Rental, Tel:+27 (0) 72 627-6350, lee@pumprental.co.za, www.pumprental.co.za

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

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Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

Magnet's new Schneider Altivar Easy 610 variable speed drives for fan and pump applications New to Magnet’s range of variable speed drives (VSDs) are Altivar™ Easy 610 VSDs, which improve equipment performance – particularly fans and pumps - and reduce operating costs by optimising energy consumption and enhancing user comfort.

it-for-purpose Altivar Easy 610 VSDs are IP 20 frequency inverters for controlling three phase synchronous motors, with a power range from 0,75 to 160 kW and a main voltage range between 380 and 415 V. “Altivar Easy 610 VSDs have been designed especially for fan and pump applications in diverse industries, including water and wastewater, oil and gas, process and machine control, as well as building management. This robust system can withstand operation in harsh environments and is able to adapt to various levels of thermal stress,” says Brian Howarth, managing director, the Magnet Group. “These VSDs are designed for use in two operating modes that optimise the drive’s nominal rating according to the system constraints. “The two modes of overload - normal duty (ND) mode for applications requiring a slight overload and heavy duty (HD) mode for a significant overload, ensure efficient operation in variable and constant torque applications associated with pumps, fans, compressors and conveyors.” Altivar Easy 610 VSDs have a communication module (Fieldbus embedded: Modbus) available for seamless integration into the main automation design. These drives feature various configurable I/O option modules as standard to facilitate adaptation to specific applications. The control terminal features analogue input and output,

as well as digital input and relay output. This plug and play system, where parameters are pre-set in the factory to specific configurations, saves process control and operating time. Integrated radio interference input EMC C3-level filters create leakage current to ground and integrated DC chokes reduce harmonic distortion. These VSDs can operate safely in a temperature range between – 15˚C and +60˚C. Cooling airflow is separate from the printed circuit board to avoid dust and oil corrosion. Other protective features include a protective coating on the electronic cards and busbars have a plating to prevent chemical gas corrosion. A plain text terminal or optional remote graphic display terminal, are used to control, adjust and configure the drive. These terminal display current values and are able to download and store several configuration files. Removable terminals, with an LCD backlight screen, can be connected and mounted on the front of the drive or mounted on an enclosure door, using a remote mounting accessory. Coloured control circuit terminals prevent misuse. Performance of the Altivar Easy 610 is enhanced by contactors and circuit breakers, which protect the drive’s power cables again short circuits. This system has been designed for simple installation, low maintenance requirements and efficient operating costs.

Pipes, Pumps and Valves Africa - Sept/Oct 2017

New to Magnet’s range of variable speed drives (VSDs) are Altivar™ Easy 610 VSDs, which improve equipment performance – particularly fans and pumps - and reduce operating costs by optimising energy consumption and enhancing user comfort.

Magnet supports Schneider’s Altivar range with a technical advisory and installation service throughout Southern Africa. Contact Samantha MacDonald, Magnet Group, Tel +27 (0) 31 274-1998, samantham@magnetgroup.co.za, www.magnetgroup.co.za

Pump refurbishment package focuses on energy efficiency

ITT Resources’ Daniel Hechter says that electricity costs in Australia, at 25+ AUS c/kWh, are among the highest costs globally.

As a result, when the company retrofits 30 to 35 year old pumps, besides increasing the life of a pump, there is a focus on increasing the energy efficiency of the pump. The company’s retrofitting is program orientated and includes a number of interventions to increase energy efficiency by ensuring that flow is better and that less electricity is used. One of the retrofitting tasks is to typically install Vesconite bushings as interstage bushings in the multistage high and lowpressure pumps that it repairs.

recycle, or less movement of pressurised water from the previous stage to the next stage.

PUMPS

An Australian company that specialises in both on-site and off-site pump refurbishment is finding that energy efficiency is an im-portant driver in its refurbishment packages - and has included Vesconite bushings as part of its energy-reducing refurbishment package.

Hechter notes that it is difficult to determine the exact energy savings that can be attributed to the bushings, but energy consumption is reduced in general following a refurbishment package. “Capital and labor are expensive in Australia, so it is important to use retrofitting to return original equipment manufacturer (OEM) equipment to its original if not better state,” he notes.

The pumps that it repairs have historically used bronze bushings, which has been expensive and caused damage to shafts.

Water utilities in the region continue to rely on the pump refurbishment firm, which is also a supplier of OEM pumps, seals and filtration systems, to refit their multistage pumps, and in the last four years several multistage pumps have been retrofitted with either Vesconite Hilube or Vesconite bushings.

The Vesconite bushings, in contrast, offer the advantage of being able to run with small clearances, which causes less

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

A two-stage horizontal split-case pump, with Vesconite inter stage centre bushing

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Hydra-Cell metering solutions Economical & Eco-friendly Solenoid Metering Pumps

PUMPS

S Series Solenoid-driven Diaphragm Metering Pumps S Series metering pumps provide an economical and environmentally-friendly choice for chemical injection in metering applications. Manual as well as automatic control models offer up to 300 strokes per minute. Solenoid-driven, the S pumps feature a wide dischargevolume range, extensive choice of liquid end materials, various control functions, and a wide voltage range. Materials of construction choices and versatile design options result in pumps perfected for specific applications including general chemicals, high-pressure boiler, highviscosity fluids, outgassing and more.

Versatile, Economical and Easy to Operate • • • • • • • •

Variety of liquid end components to match specific applications Model available with pump head that can be moved in three directions to provide flexibility of installation Manual-control SM models feature a simple hand-operated dial SP, ST & SA models feature digital operation with simple key operations and intuitive user interface - a bright, sharp LED display is clearly visible in low-light as well as highglare areas Water-proof, dust-resistant structure ideal for indoor or outdoor use Pump housing is molded from high-impact PPO, an engineered thermoplastic that provides dimensional stability and excellent resistance to heat. Power supply range for operation between AC100 and 240 V (±10 %) Fast, easy maintenance as liquid-end parts can be disassembled and replaced by simply detaching four bolts

“Eco-friendly” Mode Reduces Power Consumption up to 55% Unlike conventional pumps that are always turned on for a specific time period regardless of the discharge pressure, S Series “Eco-friendly” pumps with pulse control automatically cut the power-on time in accordance with the discharge pressure. The “Eco-friendly” mode of SP/ST/SA models always monitors operation conditions and automatically shortens the power-on time during low-pressure operation in order to reduce power consumption and operating costs.

Typical Applications S Series pumps are designed to provide reliable chemical injection for processes requiring a maximum flow rate from up to 0,48 gph (1,8 lph) to 3,17 gph (12,0 lph) depending on model. Examples include: 22

Pipes, Pumps and Valves Africa - Sept/Oct 2017

• • • • • • •

Water treatment for cooling towers Chemical injection for high-pressure boiler feed Municipal and industrial water and wastewater treatment Metering of chemicals for disinfection and pH neutralization for swimming pool treatment De-chlorination treatment for Reverse Osmosis (RO) film process Handling high-viscosity fluids Outgassing fluids

Safety Features to Handle Abnormal Pressure Safe Mode - liquid transfer force is controlled during nodischarge operation to prevent abnormal pressure buildup. (Not available for SP/ST/SA-200 models or for boiler and high-pressure applications.) Integral Relief Valve - releases abnormal pressure automatically if the pressure exceeds the set value. (Not available for high-viscosity and high-pressure applications.) Abnormal Pressure Sensor - alarm sounds if abnormal pressure builds up due to clogged pipes or if the discharge valve is closed. (Available with SP/ST/SA models only.) Contact Wim Verhagen Monitor Pump & Systems Tel: +27 (0) 11 618-3860 Fax: +27 (0) 11 614-0021 sales@monitorpumps.co.za www.monitorpumps.co.za

New electronic control added to Parker Hannifin’s P2/P3 series of axial piston pumps

dded to the P2/P3 series product line that has been utilised in load-sensing systems for many years, the eP2 control offers a new standard in terms of efficiency, responsiveness and stability. Originally designed to meet the specific demands of heavy duty mobile applications, Parker’s P2/P3 series provides for a cost-saving direct mount solution on most typical mobile transmissions with its optimized space envelope and unique port layout features. The availability of both a standard (P2) and a supercharged, internally boosted version (P3) allows for high flow operation at the most diverse inlet conditions. With continuous pressure ratings of up to 350 bar, P2/P3 provides a high-power density and enables downsizing of mobile machinery. With the addition of eP2 electronic control, the product line benefits from increased volumetric efficiency and reduced power consumption, banishing the losses of standard hydro-mechanical compensators. In addition, the eP2 paves the way for new hydraulic system approaches, such as the purely electronic control of single actuator operation that eliminates the delta p losses of a conventional LS system.

Featuring electronic displacement feedback, the new design takes advantage of a closed control loop, ensuring the highest accuracy and repeatability at any time. Besides the standard electronic displacement control function that can easily be integrated into existing system control logics, the eP2’s hardware also ensures electronic pressure limitation, torque control and speed compensation.

PUMPS

eP2 electronic control brings new standard of productivity to existing line. The Pump & Motor Division of Parker Hannifin, the global leader in motion and control technologies, has announced an extension to its axial piston pumps product line with a new electronic control concept, eP2.

In addition to the pump itself, Parker has also introduced a new pump control module, providing the logic and monitoring options for the whole range of eP2’s electronic control functions. All components have been CE certified. eP2075 is launched to serial production in July 2017, followed by all further upgrades of P2 as well as P3 within the coming months. Contact Parker, www.parker.com/za

EFFICIENCY meets PERFORMANCE

• • • •

Low Voltage TEFC frame Electric Motors to IEC60034 Ratings from 0,37kW up to 500kW at 400V, 525V and 1000V Premium Efficiency to IEC 60034-30 (IE3) IP66 & Class H Insulation

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

Why mines should be pumping slurries with a peristaltic pump Verder Pumps South Africa stock a variety of peristaltic pumps that is specifically designed to be used in mining. Verder has been supplying pumps to the mining sector in South Africa for the past 15 years and is a brand synonymous with quality and durability.

o, why should mines pump their slurries with a Verder Peristaltic Pump?

Less Water Peristaltic Pumps Use Less Water Hose pumps can circulate slurry SGs of 1,6 to 1,8 or up to 80% solid content. The traditional centrifugal pump loses efficiency when the slurry SG reaches 1,3 or 30% solids. With this limitation, slurry pumps have significant process water demands : on a plant processing 75 tonnes of ore per hour, and at 65% solids, every time a hose pump replaces a process slurry pump, it saves over 1 100 Million litres of water annually because of the slurry pumpâ&#x20AC;&#x2122;s inefficiency: on the same duty, the hose pump requires less than 25% of the process water of a slurry pump.

Less Power Peristaltic Pumps Use Less Power On the same 75 ore tonnes per hour Mines should be pumping slurries with a peristaltic pump. plant, on thickener underflow duty at full flow, a VF125 hose pump absorbs around 35 kW whereas a Less Pollution slurry pump needs over 70 kW : a saving of over 50%. This Peristaltic Pumps Reduce Miningâ&#x20AC;&#x2122;s Environmental directly translates into reduced electrical requirements. Power Impact rationing is a concern for many established mines, on new developments the infrastructure costs to import power can Many mineral recovery processes use Cyanide based leaching be considerable and can even cause significant delays and techniques especially where Gold is a key mineral. Cyanide has many adverse environmental consequences including generate considerable non-mining environmental opposition. polluting the land surrounding the plant, contaminating There is also a significant economic case â&#x20AC;&#x201C; in the above aquifers and decimating life in water courses. The traditional example, the hose pump reduced annual operating power dosing solution, progressing cavity pumps have integral demand by over 210 MWh. seals requiring regular replacement and representing a clear leakage risk. Peristaltic pumps are seal-less and consequently, Less Space have a much lower contamination risk. Peristaltic Pumps Increase Downline Efficiency Less Damage and Reduce Overall Plant Size Pulp density is critical to optimum plant performance, an increased solid content can reduce the number of post thickening filter stages, saving on the initial capital cost and reducing the footprint of mineral processing operation. 24

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Peristaltic Pumps have a Gentle Pumping Action, ideal for Bio-oxidation Techniques The peristaltic pump has a very gentle pumping action that minimises damage to fragile cell cultures in bio-oxidation

reaction techniques. One such requirement , the Biox (R) process that uses a live culture to free gold from sulphide ores, reducing Cyanide usage and improving process yields.

Less Chemicals Peristaltic Pump’s Gentle Pumping Action Reduces Reagent Usage and Acid Mine Drainage Waste Treatment Costs

To pump highly acidic slurries, hoses are made from several standard elastomers, each proven in the mining environment to withstand process chemicals and avoiding the use of expensive exotic metal impellers. By using a Verder Peristaltic pump it significantly reduces production cost and downtime. Providing in a more cost effective process. Contact Elaine van der Westhuizen

ww w.same ng.co .za

Corrosion Resistant Hoses Eliminate Costly Special Metal Impellers

CS X

MP PU

Less Special Parts

CP 7

MP PU

In contrast, on a peristaltic pump, only the rubber hose is in contact with the pumped liquid and as the ultimate rubber lined pump, service life is measured in months, reducing pump downtime and as the hose can easily be changed in situ, maintenance hours are similarly reduced.

CP S

MP PU

Longer service intervals and easy in-situ servicing reduce pump downtime

PUMPS

Less Downtime

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

MP PU

Slurries are often acidic and or highly abrasive. Consequentially, conventional slurry pumps use impellers made from increasingly expensive and non standard materials with service lives that are measured in days.

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

SP I

E DL N

Abrasion Resistant Peristaltic Pumps Lower Maintenance Costs

VERTICAL

Our range of pump products include:

P -C

Less Maintenance Costs

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.

A peristaltic pump’s gentle low shear pumping action maintains particle size minimising the use of flocculent and other process reagents. Conventional high shear technologies such as progressive cavity or screw pump significantly increase reagent usage increasing operating costs and raising post processing costs due to flotation reagent carryover. Similarly, residual reagent can increase the waste remediation cost or increase the environmental damage from tailings dams or their resultant groundwater pollution.

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

Verder Liquids, Tel +27 (0) 11 704-7500, elaine.vanderwesthuizen@verder.co.za

Alloys to suit all applications Proud Manufacturers of SAMCO® Pumps

www.verderliquids.com Pipes, Pumps and Valves Africa - Sept/Oct 2017

To trim or not to trim impellers PUMPS

The question that was recently posed during an international webinar to Grundfos’ senior technical training specialist, Kevin Anderson. This might seem like a pretty basic question, said Anderson, but in reality not so much. “In the past, the only solution in many cases was to trim the impeller to make it work properly or to close a valve to achieve the right flow. But now, with the use of variable speed drives, we have found new ways of doing things.” The answer, he said, was simply not as obvious as one might think when it comes to trimming an impeller or opting for a variable speed drive. According to Anderson efficient pumping solutions are of increasing importance in light of the growing focus on energy efficiency. He said before even making a decision on whether to trim an impeller or not, the most fundamental of all centrifugal pump documents – the performance curve – must be understood. “Being able to understand, read and interpret the pump curve is critical. It is packed with information that can be used as an aid in not only the selection and specification of the right equipment but also to ensure the equipment is operating as efficiently as possible.”

requirements. Trimming an impeller can have an impact on this. “A quick poll of this webinar audience, for example, shows that some 27% of people contact the manufacturer of the pump as the method used to size and select a pump, while some have said they use the product manual or online tools to do this,” he said. “We have also determined in a similar poll that more often than not pumps are oversized for the operations they are required for.” Whilst trimming the impeller might seem like the most obvious and easiest of solutions for current pump needs, unfortunately if the conditions of service change to require more flow and head than originally specified, the trimmed impeller size would limit such flexibility. Anderson said the impeller diameter is therefore not just arbitrarily chosen. With the pump performance curving at various impeller trims there are some guidelines to follow and to consider.

He told participants of the webinar that with the host of information available from this document decisions can be made far easier on the choice of pump, driver sizing and power consumption strategies. “The pump curve sums up performance and showcases the level of efficiency,” said Anderson. “It also acts as a guide as to whether to trim the impeller or not.”

Long-term solutions Anderson advised pumps and the performance be viewed with longterm solutions in place rather than focussing on the immediate needs and

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Kevin Anderson

Using an example of a pump with a current flow requirement of 1893 litres per minute and a future requirement of 2650 litres per minute, he said at face value a 45% cost saving could be made using a trimmed impeller at the original design rather than just using the original system, while a 50% annual cost saving could be made with a variable speed at original design.

This, however, did not include all the costs involved. “With a trimmed impeller one has to also consider the cost of the intervention in terms of the logistics required to do it. There is more than one aspect involved other than just comparing the graphs of a trimmed impeller to a variable speed operation,” he explained. “To trim an impeller the system has to be shutdown so there is the cost of downtime that must be factored into the equation along with the actual cost of the trimming.”

He said comparing efficiency and cost over time the variable speed pump will show as more cost effective. Calculations for his pump with a current flow requirement of 1893 litres per minute and a future requirement of

PUMPS

According to Anderson it is about factoring in all of the elements rather than just making a quick decision. “You have to consider what size pump you have, what size pump you require at the moment and what size pump you are going to require in the future, what is the labour cost of trimming an impeller and what is the efficiency achieved.”

2650 litres per minute using an annual cost based on R1,33 per kWh and 3000 hours per year, show that using a single speed full impeller will cost R43 994 per year and R52100 at its full capacity. “Trimming the impeller will bring cost benefits in that it will only have an annual cost of R24 307 at its initial requirement of 1893 litres per minute and R52 100 for 2650 litres per minute,” he says. “Variable speed costs

are R22 065 per annum for 1893 litres per minute and R53 136 for 2650 litres per minute.” According to Anderson it is about accounting for all the variables before making a decision and then implementing. Contact Grundfos Tel +27 (0) 11 248-6000 www.grundfos.com

APE pumps - Pumps at the heart of africa Mining

Waste Water processing

Manufacturers of: Vertical industrial turbine pumps Multi-stage high pressure pumps Split casing pumps End suction pumps

Power Generation

Petrochemicals

Vertical sump pumps API 610 pumps

26 Nagington Road, Wadeville Germiston 1400, South Africa Tel +27 11 824 4810 | Fax +27 11 824 2770 PO Box 14733, Wadeville 1422, South Africa Email: apepumps@mweb.co.za Website: www.apepumps.co.za

APE A5 ad.indd 1

2015/10/13 10:53 AM

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

Atlas Copco liquid ring vacuum pumps resource conserving plug and play solutions A global company dedicated to the manufacture, sales and service of fluid-handling equipment has commented on the ease with which it installed a total of 12 Vesconite Hilube line-shaft bushings and two Vesconite Hilube stuffing box bushings in two 18-m-length pumps.

he tough construction and proven operating principle of AWS, AWD & AWL liquid ring vacuum pumps from Atlas Copco make them suitable for use in the most demanding of environments across all sectors, from food processing and petrochemical to construction. Preengineered and fully assembled plug-and-play solutions, with one or two stages, in three different standard configurations, these pumps deliver resource-conserving plug-and-play solutions that save costs and improve productivity for end-users. Liquid ring vacuum pumps combine a sturdy, reliable and low-maintenance design with highly efficient performance and silent running. These pumps are also extremely well suited for humid, wet or corrosive process flows and even tolerate particles with ease. Users benefit from short lead times, minimum life cycle costs and high reliability. Liquid ring pumps are equipped with a fixed blade impeller located eccentrically within a cylindrical casing. As the impeller rotates, liquid (usually water) is thrown out by centrifugal force to form a liquid ring around the circumference of the casing, sealing the tips of the impeller and creating separate enclosed gas chambers between each blade. As a result of the eccentric position of the impeller, these chambers vary in volume as the shaft rotates, having the effect of drawing in and compressing process gas. The AWS and AWD vacuum pump series are offered in three pre-engineered modular configurations designed for once-through, partial recirculation or total recovery of the service water. Striving to make the customerâ&#x20AC;&#x2122;s life easy Atlas Copco offers all three configurations as prefabricated plug-and-play modules, including pump, motor and water recirculation system mounted on a compact skid. Customers receive a complete solution which can be easily installed and commissioned with the minimum amount of work. In most cases all wetted system components are manufactured from stainless steel. The module with the simplest design is the once-through pump which consists of a pump with electric motor, drive system and skid. It is ideal for installations with an adequate

Pipes, Pumps and Valves Africa - Sept/Oct 2017

supply of site water available which can then be continuously drained from the pump for re-use. The pumping system adds no contaminates to the service water other than those coming from the process. In the case of partial recovery, the discharge liquid-process gas mixture is collected in a vessel where it is mixed with fresh sealing liquid to ensure a constant temperature in the pump. Excess liquid is released from the system via an overflow. Compared with once-through operation, this mode of operation typically saves 50% of the fresh water required. With total recovery, liquid savings of up to 95% are possible. The recovered liquid is cooled via a high efficiency heat exchanger before being returned to the pump chamber. This configuration works with a closed liquid cycle and is recommended because it physically separates the cooling water circuit from possible process contaminates. Capacities range from 170 to 37 500 mÂł/h. Lower capacity (below 5 500m3/h) units are available as single-stage AWS models or two-stage AWD models preconfigured with directdrive options in 50 and 60Hz speeds. Single stage AWS pumps have outstanding efficiency above 200 mbara, making them ideal for general process applications such as filtration and dewatering, and pump down or evacuation duties.

based on years of experience and best practice design. For more complex projects, Atlas Copcoâ&#x20AC;&#x2122;s applications teams develop systems tailored to meet customersâ&#x20AC;&#x2122; unique requirements. Atlas Copco experts can offer liquid ring packages adapted to most process conditions, including special materials and design of multi-stage systems. In addition, Atlas Copco can develop and design systems suitable for operation in potentially explosive atmospheres in accordance with ATEX.

The two-stage AWD pumps provide constantly high performance at operating pressures below 200 mbar (absolute). Two synchronized pump chambers work in series to achieve high performance and improved efficiency on continuous process duties such as drying, degassing exhausting and solvent recovery. For larger installations, belt or gearbox transmission high capacity AWL pumps can often be the most appropriate selection. All AWS and AWD pumps achieve class leading ultimate pressure levels as low as 30 mbar (absolute). Pre-engineered standard configurations allow for fast response to customers with proven technology solutions

The simple and sturdy design of these pumps make them ideal for the reliable delivery of vacuum in humid, dusty and dirty environments typically found in industrial processes across a wide spectrum of industries including food & beverage, dairy, mineral processing and mining, chemicals and petrochemicals, pharmaceuticals, oil, steel, cement, plastics, paper & pulp and textiles.

PUMPS

Testing to Pneurop and HEI standards along with material certifications, project support and approved quality plans are also offered by Atlas Copco. Furthermore, the companyâ&#x20AC;&#x2122;s electrical engineers have experience with the design and installation of control systems for intelligent pump management.

Atlas Copco introduced its new AWS and AWD series standard liquid ring vacuum packages at ComVac, held in Hanover at the end of April 2017. Contact Willem Brits, Atlas Copco, Tel: +27 (0) 83 679-8641, willem.brits@za.atlascopco.com

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

Aqua Services & Engineering installs two largest trickling filter sewage treatment plants in Namibia Aqua Services & Engineering (ASE), the Namibian subsidiary of Veolia Water Technologies, has been sub-contracted to supply, install and commission mechanical and electrical works for two Greenfield sewage treatment plants (STP) in Helao Nafidi municipality, northern Namibia.

he sewage treatment plants are designed to treat domestic sewage originating from the municipality’s amalgamated towns of Oshikango and Ohangwena. Treated water will be re-used for various irrigation projects.

STP sites are approximately 10 kilometres apart from each other. Designed by local specialist consultants Aquarius Consult cc, and built by Nexus Civils, the plants incorporate proven technologies to achieve the required effluent standards.

On completion, the two plants will be the largest trickling filter sewage treatment plants built in Namibia to date.

“The domestic sewage from the two towns will be treated using biological primary and secondary treatment, combined with tertiary treatment to improve the final effluent water quality,” explains Alex Busch, General Manager, Projects, ASE. For aerobic treatment, trickling filter technology was chosen: after screening and grid removal, the raw sewage undergoes primary settling and anaerobic treatment before the overflow is treated in an aerobic process using new-generation trickling filter technology. The trickling filter tower is packed with plastic media that serves as host for carbonaceous material removers

Helao Nafidi, a municipality comprising five urban towns within a radius of ca 15 km and with a total population of approximately 45 000, required two sewage treatment plants to upgrade and replace their existing oxidation ponds, which have become too small to handle the increased load required to service the majority of their erven connected to the reticulation system. One plant is located at Ohangwena and the other at Oshikango, with respective plant capacities of 1 500 m³ and 3 000 m³ per day. The

View from the inlet works at Oshikango Plant

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

View from the inlet works at Ohangwena Plant

Water tightness test being conducted on a clarifier

and nitrifying micro-organisms to grow on. The effluent is subsequently fed to a secondary clarifier and disinfected using gas chlorination. Finally, sand filtration is employed for polishing so the effluent can be re-used for gardening, sports fields and irrigation projects, thereby creating value for the surrounding community. ASE designed, supplied and installed all mechanical components for the inlet works, rotating clarifier bridges, pumps, instrumentation, trickling filter media, gas chlorination equipment, sand filters and chemicals in the form of chlorine gas cylinders, most of which was imported from South Africa. The exception is the trickling filter media, which was imported from Germany. “All equipment from South Africa was road-freighted to Namibia,” says Busch, “while the trickling filter media was shipped to Walvis Bay Harbour, from where it was road freighted to site.” He adds that all electrical items and activities were, in turn, subcontracted to local Namibian electrical specialists, and include onsite electrical installation, supply and wiring of all motor control cabinet panels.

Most of the works for the project have already been completed, and the site is currently receiving the finishing touches before commissioning commences. This is expected to take place in the last quarter of 2017, and will be conducted in such a manner as to divert the current sewage inflow from the existing ponds and pass it through the new plants for proper treatment. The existing oxidation ponds will be drained and cleaned and the final ponds will be reused as irrigation ponds to store final effluent, before being pumped to various irrigation sites. “The effluent from each plant will comply with the Namibian general standard for domestic wastewater, which the local communities can re-use for gardening purposes or for irrigation of selected produce. A ca 30 km ring-main system that provides treated effluent for reuse throughout the towns has been installed, which will ensure that users can connect to this supply easily and at minimum costs. The reclaimed water will provide them with a valuable additional supply of water, especially during dry spells,” Busch concludes. Contact Alex Busch, Veolia Water Technologies, alex.busch@veolia.com, www.veolia.com Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS

Reduce solid particle erosion damage & avoid downtime with thermal spray coating technology The application of thermal spray coatings from South Africa’s surface engineering and coating technology specialist, Thermaspray, helps to reduce erosion damage to components, equipment and systems which can lead to costly downtime and even failure.

rosion is caused when a gas or liquid carries entrained solid particles that impinge on a surface with velocity. During flight a particle carries momentum and kinetic energy, which can be dissipated during impact due to its interaction with a target surface. It has been experimentally observed that during the impact the target can be locally scratched, extruded, melted and cracked in different ways. The surface damage will vary according to target material, erodent particle, impact angle, erosion time, particle velocity, temperature, atmosphere, etc. “Erosion of materials and components caused by the impact of solid particles can be a life-limiting

Pipes, Pumps and Valves Africa - Sept/Oct 2017

phenomenon,” explains Thermaspray Managing Director, Dr. Jan Lourens. “Solid particle erosion is a concern for any erosive environment industry typically found in industrial plants (flow of solid particles such as coal into equipment), aerospace (sand erosion on helicopter blades, jet engine blades and vanes), and the power generating industry (exposure of draft fan blades to fly ash and turbines - impact of solid oxide particles on downstream blades).” Thermal spraying allows the production of overlay protective coatings of a great variety of materials on a range of substrates, almost without limitations as to its

components, phases and constituents. Consequently wear and corrosion resistant coatings account for significant utilisation of thermal spray processes.

•

According to Dr. Lourens, while erosion testing allows an assessment of the coating toughness and adhesion, erosion behaviour of thermal sprayed coatings is not clearly understood by South African industry.

Erosion resistance is complex and its combination of so many vari¬ables makes it next to impossible to duplicate and to recreate field environments in laboratory tests. Thermaspray, which has pioneered the way forward in coating quality and the development of new coatings for specific applications, has designed and built a customised erosion rig according to the ASTM standard G76-13 for the erosion testing of thermal coatings by solid particle impingement at its Olifantsfontein, Johannesburg workshop.

The erosion wastage of thermal sprayed coatings is strongly affected by particle impact angle. However, material behaviour depends on mechanisms of material removal while hardness could be of lesser importance. Dr. Lourens advises that the following factors must be taken into consideration before considering a coating for an application where erosion damage can be present: •

Angle of impact < 45°: coating should be harder and more abrasion resistant

•

Angle of impact > 45°: coating should be softer and tougher

•

High service temperatures: coating should have high hot hardness and oxidation resistance

•

When the carrier is a liquid: Corrosion resistance of the coating should also be considered

During recent erosion rig tests conducted by Thermaspray in conjunction with a customer, coatings were applied onto aluminium substrates which were sprayed using the High Velocity Oxy-Fuel (HVOF) spray system. Results indicated that among the materials tested, the polymers and the thermally sprayed aluminium showed the highest erosion resistance. With close to 20 years of experience, Thermaspray is well positioned to provide customers with expert advice in terms of applying the correct coating for a particular application.

PUMPS

There are two main groups of erosion processes namely ductile material and brittle material which are distinguished using the erosion rate (the material loss per unit of erodent mass or volume) versus impact angle. During the ductile material erosion process (impact at lower angles), the surface damage develops predominantly by plastic deformation during cutting, extrusion, adiabatic shear and forging on ductile materials such as most metals at room temperature. During the brittle material erosion process (impact at higher angles), particle impact produces different types of cracks and chipping, with negligible plastic deformation. “Other evidences suggest that erosion of materials combines ductile material and brittle material modes simultaneously, the ratio of them depending on impact angle and material properties,” adds Dr. Lourens.

Environ¬mental factors such as thermal shock: Erosion resistant ma¬terial bond strength should be considered

Thermaspray, in a joint venture with Cape Town-based Surcotec, offers an extensive portfolio of engineering and thermal spray coating solutions that extend component life cycles to assist OEM and end-user clients across southern Africa in reducing costs and increasing production. The companies’ world-class quality wearand corrosion-resistant thermal spray coatings, Plasma Transferred Arc (PTA) cladding and Polymer coatings (in partnership with Plasma Coatings USA and Diamant Metallplastic Germany) are augmented by a host of specialised allied services. Contact Thermaspray, Tel: +27 (0) 11 316-6520/8/9, Fax: +27 (0) 11 316-7527, www.thermaspray.co.za Blog: http://thermal-spray.co.za/blog/ YouTube: www.youtube.com/thermaspray

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Side Channel & Roots type blowers for wastewater treatment PUMPS

Wastewater aeration is the process of adding air into wastewater to allow aerobic biodegradation of the pollutant components. Why is Aeration Important for Wastewater Treatment? Wastewater aeration is the process of adding air into wastewater to allow aerobic bio-degradation of the pollutant components. It is an integral part of most biological wastewater treatment systems. Unlike chemical treatment which uses chemicals to react and stabilise contaminants in the wastewater stream, biological treatment uses microorganisms that occur naturally in wastewater to degrade wastewater contaminants.

When is Aeration Used? In municipal and industrial wastewater treatment, aeration is part of the stage known as the secondary treatment process. The activated sludge process is the most common option in secondary treatment. Aeration in an activated sludge process is based on pumping air into a tank, which promotes the microbial growth in the wastewater. The microbes feed on the organic material, forming flocs which can easily settle out. After settling in a separate settling tank, bacteria forming the "activated sludge" flocs are continually recirculated back to the aeration basin to increase the rate of decomposition.

How does Aeration Work? Aeration provides oxygen to bacteria for treating and stabilizing the wastewater. Oxygen is needed by the bacteria to allow biodegradation to occur. The supplied oxygen is utilised by bacteria in the wastewater to break down the organic matter containing carbon to form carbon dioxide and water. Without the presence of sufficient oxygen, bacteria are not able to biodegrade the incoming organic matter in a reasonable time. In the absence of dissolved oxygen, degradation must occur under septic conditions which are slow, odorous, and yield incomplete conversions of pollutants. Under septic conditions, some of the biological process converts hydrogen and sulphur to form hydrogen sulphide and transform carbon into methane. Other carbon will be converted to organic acids that create low pH conditions in the basin and make the water more difficult to treat and promote odour formation. Biodegradation of organic matter in the absence of oxygen is a very slow biological process.

it achieves. An ample and evenly distributed oxygen supply in an aeration system is the key to rapid, economically-viable, and effective wastewater treatment.

What equipment can be used to provide an air supply? Typically in smaller installations one could use a Side Channel Blower (SCB). Side channel blowers, can generate significantly higher pressures than industrial fans. The operating principle of a SCB is as follows: the air gets sucked in through a fast rotary vane impeller. After this, the air in the SCB gets pushed and compressed outwards by the centrifugal force. It flows through the side channel back into the inner part of the blower and gets compressed again between two more sets of blades. The second compression enables the pump to generate significantly higher differential pressure. In the larger installation one would generally use a Roots blower or low pressure screw compressor or a low pressure turbo compressor. Roots blowers are however the most commonly used technology in this country. Roots blowers are positive displacement units, whose pumping capacity is determined by size, operating speed and pressure conditions. It employs two or three lobe impellers mounted on parallel shafts, rotating in opposite direction within a casing closed at the ends by side plates. As the impellers rotate, air is drawn into one side of the casing and forced out of the opposite side against the existing pressures. The differential pressure developed, therefore, depends upon the resistance of the connected system. The Blowers, being positive displacement type, do not develop pressure within the casing but rather at the discharge.

Why is Aeration Important for Wastewater Treatment?

We are agents for Elmo-Rietschle, a Gardner Denver brand as well as Robuschi, also a Gardner Denver brand.

Aeration is the most critical component of a treatment system using the activated sludge process. A well designed aeration system has a direct impact on the level of wastewater treatment

Contact Air & Vacuum Technologies, Tel +27 (0) 11 318-3241/2/3/4, info@vactech.co.za, www.vactech.co.za

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Forces required to close pinch valves at high pressures

orflex has been building Pinch Valves since 1981 and can safely claim that it supplies Pinch Valves for higher pressures than any other similar valve. Over the years Corflex has conducted many tests on different size pinch valves to ascertain the actual force required to close and seal pinch valves of different sizes at different pressures. There is no National or International Standards on the design or strengths of pinch valves as there are with many other type of valves.

VALVES

There are an increasing number of pinch valves being supplied for high pressure slurry applications. Corflex believe that in the interest of safety Engineers should be made as fully aware as possible of the forces required to not only close pinch valves but to ensure that they do not leak when closed.

Fig. 1: Two cutaway sections of the Corflex Pinch Valve Sleeves.

Pinch Valve Sleeve The strength of a pinch valve sleeve is dependent on the reinforcement used in its construction. The most suitable type flange is what is known as a cuff flange as opposed to a full face flange. In Fig. 1. is a photograph of two cutaway sections of the Corflex Pinch Valve Sleeves. The one on the right is for relative high pressure applications, it is reinforced with 2 or 4 ply of steel wire depending on pressure required. The one on the left has 4 ply of much larger size wire, which is used for very much higher pressure applications.

Fig. 2: Pinch Valve Sleeves when closed take a shape.

A pinch valve sleeve is basically a rubber hose and similar standards to those in quality hose manufacture should apply. The industry standard is 4:1 burst pressure to working pressure with a test pressure of 2:1. High pressure pinch valves have enclosed bodies so the ratio can be reduced to 3:1 with a test pressure of 2:1. This should be the minimum standard for safe working pressures. Pinch Valve Sleeves when closed take a shape similar to the image in Fig. 2. With other valves such as plug, ball or gate there is little or no force trying to open the valve. With Pinch Valves apart from pressure trying to move the rubber out of the way, there is also an all round force trying to open the valve. Pinch Valves when closed may look shut but when pipeline pressure is applied they will leak unless there is sufficient force on the sleeve.

Pinch Valve Bodies And Closing Mechanisms Pinch Valve enclosed bodies should not only be strong enough to support the pincher mechanism but strong

Fig. 3: These two nuts take the full force of the closing mechanism or the force trying to open the valve.

Pipes, Pumps and Valves Africa - Sept/Oct 2017

enough to contain the valve sleeve test pressure in the event of a sleeve failure. The forces required to close and seal pinch valves are very high and increases greatly with size and pressure. The only practical way to operate them is hydraulically. Traditionally pinch valves usually have rising actuators as this is less expensive than alternative methods. With this type of actuation the pincher mechanisms are usually bolted together using nuts or other fasteners.

VALVES

These two nuts take the full force of the closing mechanism or the force trying to open the valve (See Fig. 3.).

Fig. 4: The sealing tests that Corflex conducted are to API 598.

The high forces required to close pinch valves will generally greatly exceed the safe working load of the nuts.

Forces to close and seal The sealing tests that Corflex conducted are to API 598 as per Fig. 4. Force required to close and seal pinch valves with no added safety factor. These tests were conducted on different standard sizes

SIZE

10 BAR

16 BAR

25BAR

40 BAR

250MM

13 TONS

18 TONS

27 TONS

39 TONS

300MM

17 TONS

24 TONS

38 TONS

51 TONS

350MM

23 TONS

34 TONS

49 TONS

73 TONS

450MM

35 TONS

51 TONS

77 TONS

115 TONS

500MM

41 TONS

61 TONS

88 TONS

Fig. 5: The valve is closed from both sides with the hydraulic cylinders firmly attached to the valve body using 4 x large diameter Hi-Tensile Bolts.

from zero pressure upwards in one Bar increments. From this Corflex were able to draw curves for each size valve for all pressures.

In Fig. 5. it shows the valve is closed from both sides with the hydraulic cylinders firmly attached to the valve body using 4 x large diameter Hi-Tensile Bolts.

Some of the tests were done on different sleeves of the same size with similar results.

With the high forces involved, Pinch Valves must be built to ensure the safety of personnel as well as efficient operation.

We found that the force to close each size was in direct relation to the ratio of the square of the diameter. This meant that once you knew one it was easy to calculate the force required for other sizes, which have not been tested.

It is possible to build pinch valve sleeves for much higher pressures but the force required to seal would damage the sleeve.

To ensure the valves do not leak a minimum of 10% should be added to the forces and preferably more.

Corflex has found from practical experience that the maximum force that should be applied to their sleeves is 120 Tons on large diameter valves. Corflex has tests which were witnessed by Engineers which are available.

Corflex had to design their valve to handle these forces. This meant that the valve could not have a rising actuator as it could be considered unsafe.

Contact David Webber, Corflex Engineering, Tel +27 (0) 11 866-1932, dave@corflex.co.za, www.corflex.co.za

Pipes, Pumps and Valves Africa - Sept/Oct 2017

The importance of valve selection in slurry applications The trend to pump slurries over longer distances at higher solids concentrations is putting slurry valves to the test, as these severe applications have high pressures and are very abrasive, according to AR Controls Director Julien van Niekerk.

The most abrasive media found in the mining industry are slurries resulting from hard ore types and ferrosilicon. The media and process properties vary in different parts of the extraction process. In metal-extraction mines and plants, for example, abrasive slurries are found in the milling, cyclone, and DMS circuits, again in concentration feed and tailings, and to a lesser degree in flotation and thickener areas. Particle size, shape, hardness, and density all play an important role, as well as the angle of impact on the wear surface. Pumping the media at a high solids concentration, pressure, or velocity also leads to elevated levels of abrasion. These wear effects are exacerbated when throttling abrasive media.

â&#x20AC;&#x153;If the media transported is abrasive, it is best not to install valves on the bend of a pipe, or on a Y-joint,â&#x20AC;? van Niekerk cautions. It is also important to consider whether the application is bidirectional or unidirectional, and to ensure that valves are installed in accordance with the installation instructions provided.

VALVES

nother factor to be taken into consideration is that the media conveyed is often corrosive. In general, engineers designing for process efficiency find that material and equipment capabilities pose the most serious limitations on allowable process conditions.

Rubber-lined flanges may be convenient to use, but can pose problems for certain gasket-free or integrated-gasket valve designs. It is best to investigate the gasket valve requirements in the early project phase to ensure that rubber lining is not applied on the mating pipe flange faces. When carrying out a valve selection, it is important to not only look at the process conditions, but also to consider the general installation environment. For example, the media might not be corrosive, but the environment may very well be. â&#x20AC;&#x153;It is always best to use full port valves in slurry applications. Valves with a torturous flow path or with an element directly in the flow path, such as butterfly, globe and weir-type diaphragm valves, will

Fig. 1: Three DN750 ANSI CL300 rated DeZurik KSV severe-service knife gate valves installed on tailings lines.

Pipes, Pumps and Valves Africa - Sept/Oct 2017

wear prematurely in slurry applications. This refers back again to the importance of valve selection,” van Niekerk elaborates.

VALVES

AR Controls offers unique products for when there is a requirement for the throttling of abrasive media. For example, DeZURIK RCV rotary control valves have been engineered specifically for high-precision throttling control in severeservice applications where high-pressure media contains entrained water vapour or suspended abrasive particles.

and downtime,” van Niekerk elaborates. It is also important to inspect valves regularly in order to detect signs of wear and failure early enough, so that valves can be maintained or repaired before they become irreparable. Contact Julien van Niekerk, AR Controls, Tel +27 (0) 16 981-4551, julien@arcontrols.com, www.arcontrols.com

These combine the control accuracy of globe valves with the strength of severe-service ball valves. The valves are available with a tungsten carbide or heat-treated nickel overlay plug. Various other valves are available for abrasion isolation applications. “We also offer customers the option of using remote-mount electro-pneumatic positioners, rather than having the positioner mounted directly on the valve,” van Niekerk highlights. The positioner and its complementing air-preparation equipment are supplied in a plug-and-play stainless steel pneumatic enclosure that can be custom-made according to individual requirements. Mounting the positioners remotely in enclosures helps protect the positioner from environmental damage, and is ideal when valves are in hazardous or hard-to-reach installations. This also prevents tampering and unauthorised entry to the equipment. “Materials technology has a direct impact on the valve industry,” van Niekerk comments. Advanced materials and coatings are being developed continuously. However, even though innovation can be rapid, market readiness is important, as resistance to change can be a large obstacle to advancement. Valve specialists can identify suitability issues early on, and hence it is best for them to become involved from the outset. “They will be able to offer the best solution for the most challenging applications. Working closely with a specialist valve supplier will certainly help to reduce cost of ownership

Fig. 3: 24 DeZurik KGC knife gate valves nstalled on a cyclone cluster.

Pipes, Pumps and Valves Africa - Sept/Oct 2017

Fig. 2: A DN900 DeZurik KSV severe-service knife gate valve installed on a tailings line.

Bosch Ulwazi and Transnet Pipelines celebrate ISO certification of ESDs A milestone of Bosch Ulwazi’s ‘Enterprise and Supplier Development’ (ESD) program for Transnet Pipelines, which commenced in 2015, was the presentation of ISO certificates to nine emerging enterprises.

PIPES

he Transnet Pipelines ‘Business Breakthrough Initiative’ supports enterprise development initiatives that create and expand opportunities for black owned enterprises, with a turnover of less than R35-million. “ISO certification - an internationally acclaimed Quality Management System – forms part of this ‘Business Breakthrough Initiative’ to give emerging enterprises the competitive edge in their highly competitive fields of business,” says Balan Govender, managing director, Bosch Ulwazi, part of Bosch Holdings (Pty) Limited. “Through the guidance and training of Bosch Ulwazi and an external facilitator, these small, medium and micro-sized enterprises (SMME’s) now have ISO 9001: 2008 accreditation. “ISO certification also demonstrates a commitment from these emerging enterprises that their products and services consistently meet customers’ requirements and that quality will be consistently improved.”

Back row from left: Portio Dlamini, Emakheni Cleaning Services; Mike Gibbon, Bosch Holdings; Raj Ramchuran, Bosch Projects; Mhlonishwa Ngidi, Ayama Group; Balan Govender Bosch Ulwazi; Alan Govender, CA Engineering; Welcome Mpungose, Transnet Pipelines Middle row from left: Daya Naidoo, Awesome Signs and Norma Jali, Anchor Petroleum

Apart from obtaining ISO accreditation, Bosch Ulwazi has assisted these SMME’s with project and operations management, skills development and the planning and implementation of expansion strategies, in compliance with corporate governance.

Front row from left: Charlene Paruss, Stanmore Projects; Mlungisi Zwane, Siyazenzela Trailers; Mthandeni Ngidi, Hlobane Waste Management; Zameka Cain, Bosch Holdings; Kitumetsi Ntombela, Transnet Pipelines

Recipients of ISO certificates are Emakheni Cleaning Services, Awesome Signs, Anchor Petroleum, Ayama Group, CA Engineering, Stanmore Projects, Siyazenzela Trailers, Hlobane Waste Management and Give Ziyawa.

Contact Balan Govender, Bosch Ulwazi, Bosch Holdings, Tel: +27 (0) 31 535-6000, govenderb@boschulwazi.co.za, www.boschulwazi.co.za

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PIPES

Usuthu Water Purification Plant expands for increased output Zululand District Municipality is currently in the process of expanding its Usuthu Water Purification Plant to increase output by 20 mega-litres per day. Plasti-Tech Piping Systems, supplier of world class thermoplastic piping systems and related products to industry in southern and sub-Saharan Africa, has been commissioned to supply the expansion project with a range of piping, custom fittings and flanges.

ased in Nongoma in KwaZulu-Natal, the water purification plant, along with reservoir and access road, was first commissioned in 2015 as part of a long-term project established by the Zululand District Municipality to address the water and sanitation needs of the community. According to a report by the Vryheid Herald, as quoted in an article by Infrastructurene.ws & Service Delivery, the municipality’s then Mayor Mpiyakhe Hlatshwayo commented, “This (project) forms part of our programmes to deliver water services to our communities which has been suffering for some time. The situation was aggravated by the severe drought that continues to affect the whole district and the province of KwaZulu-Natal. We hope the construction of the purification plant will help resolve water challenges within the Nongoma area.” “The Usuthu Water Purification Project in Nongoma, KwaZulu-Natal has called for a plant expansion to increase

Pipes, Pumps and Valves Africa - Sept/Oct 2017

water purification and supply output by 20 mega-litres per day,” says Bradley Chamont, Plasti-Tech Managing Member, who adds, “This has necessitated the involvement of civils, mechanical and electrical services and supply, overseen by project stakeholders, Isimo Project Engineers, Stefanutti Stocks and Water Purification Chemical & Plant (WPCP), who have been in the water treatment works business for 15 years.” Plasti-Tech is mandated to supply HDPE (High Density Polyethylene) pipes in diameters of 500 mm, 710 mm, 800 mm and 900 mm PN8; HDPE fabricated fittings in diameters of 500 mm, 710 mm, 800 mm and 900 mm; and galvanised flanges of 500 mm, 710 mm and 900 mm in diameter, comprising in total a R1.8 M supply of piping and ancillaries to the R19 M project. “Plasti-Tech has been in the business of supplying HDPE locally produced SANS / ISO 4427 SAPPMA approved piping

PIPES

and importing HDPE fittings and welding equipment for the past seven years. With extensive expertise in this field coupled with excellent pricing and lead times on delivery, it made sense that we were chosen to supply the HDPE piping and fittings to this project,” remarks Chamont, concluding, “We are proud to have played a role in a project that has not only enhanced the current water supply infrastructure to the people of Nongoma, but whose legacy will serve this community for many years to come.” The Usuthu Water Purification Plant expansion project, which created employment for 10 WPCP employees and a thermoplastic butt-welding specialist, commenced in January 2017 and is due for completion in September 2017.

Reference: Frankson, Liesl. ‘Contractors Raring to go on Usuthu Water Purification project’. Infrastructurene.ws &Service Delivery. www.infrastructurene.ws/2016/02/09/contractors-raringto-go-on-usuthu-water-purification-project/# Posted: 9 February 2016. Accessed: 19 May 2017. Contact: Plasti-Tech Piping Systems Brad Chamont Tel: +27 (0) 11 609 5511 Cell: +27 (0) 82 471 5757 brad@plasti.co.za www.plastitech.co.za Pipes, Pumps and Valves Africa - Sept/Oct 2017

ADVERTISE YOUR BUSINESS IN THE

MARKET PLACE The Market Place is divided into easy to read colour coded sections to help you quickly find what you need

VACANCY OPPORTUNITIES DEALER LOCATOR PRODUCTS, PARTS AND ACCESSORIES RENTALS SAFETY, TRAINING AND INDUSTRY SERVICES MAINTENANCE & REFURBISHMENT FOUNDRIES Tel: +27 (0) 11 475-0010 Cell: +27 (0) 83 281-5761

Pipes, Pumps and Valves Africa - Sept/Oct 2017

SIZE A4 (262mm x 185mm) 1/2 Vertical (262mm x 90mm) 1/2 Horizontal (185mm x 129mm) 1/4 Page (129mm x 90mm)

info@pumpsandvalves.co.za www.pumpsandvalves.co.za

PUMPS ANSI PROCESS PUMPS

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

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

T: +27 (0) 11 907-8845 C: +27 (0) 83 702-6589 E: albpumps@worldonline.co.za W: www.albertonpumpsandequip.co.za

T: +27 (0) 11 618-3860 F: +27 (0) 11 614-0021 E: sales@monitorpumps.co.za W: www.monitorpumps.co.za HORIZONTAL SPLIT CASE PUMPS

BOREHOLE PUMPS

Alberton Pumps & Equipment

MOBILE PUMPS

DIAPHRAGM PUMPS

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

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

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

T: +27 (0) 13 690-2597 F: +27 (0) 13 690-2269 E: rocktuffpump@lantic.net W: www.rocktuff.co.za MULTISTAGE PUMPS

Agrico 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

CENTRIFUGAL PUMPS

SAM Engineering

Rocktuff Pumps and Mining Supplies

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

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

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

Hawk High Pressure Pumps SPP Pumps SA (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

T: +27 (0) 11 393-7179 F: +27 (0) 86 425-7595 E: sales@spppumps.co.za W: www.spppumps.com FLEXIBLE IMPELLER 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

PLUNGER PUMPS METERING PUMPS

CHICK HENDERSON Chick Henderson

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) 11 640-1400 F: +27 (0) 624-1432 E: rob@chickhenderson.co.za W: www.chickhenderson.co.za HIGH PRESSURE PUMPS

Hawk High Pressure Pumps 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

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

Hawk High Pressure Pumps

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

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

CHICK HENDERSON

Seko (Pty) Ltd T: +27 (0) 11 704-6589 F: +27 (0) 11 704-6588 E: m.varkevisser@seko.com W: www.seko.com

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

Pipes, Pumps and Valves Africa - Sept/Oct 2017

PUMPS TRASH PUMPS

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

Ukuthela Foundry Projects

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

Hizonex T: +27 (0) 87 550-1984 F: +27 (0) 86 723-5429 E: maritzrenee@gmail.com W: www.hizonex.co.za

T: +27 (0) 12 719-8860 F: +27 (0) 86 239-2597 E: ukuthela@live.co.za PUMP PONTOONS / FLOATING WALKWAYS

DOCKPRO (Pty) Ltd. T: +27 (0) 11 966-8009 F: +27 (0) 86 542-2215 E: rob@dockpro.co.za W: www.dockpro.co.za SELF-PRIMING PUMPS

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

Horma Pumps Pump and Abrasion Technologies T: +27 (0) 12 666-0904/5 E: sales@pumpab.co.za W: www.pumpandabrasion.co.za

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

SUBMERSIBLE PUMPS

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

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

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

SAM Engineering

T: +27 (0) 11 393-7179 F: +27 (0) 86 425-7595 E: sales@spppumps.co.za W: www.spppumps.com VERTICAL SUMP PUMPS

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

SLURRY PUMPS

VERTICAL TURBINE PUMPS

APE Pumps

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

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

KSB (Pty) Ltd

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

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

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 Bovu Pumps T: +27 (0) 16 362-2571 F: +27 (0) 16 362-0635 E: bovugroup@telkomsa.net W: www.bovu-pumps.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

RNE Pumps (Pty) Ltd

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

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

KSB (Pty) Ltd 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 44

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

Pipes, Pumps and Valves Africa - Sept/Oct 2017

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

VALVES CHECK VALVES

AIR VALVES

Mine Track & Tools (Pty) Ltd Agrico T: +27 (0) 21 950 4111 F: +27 (0) 21 950 4208 E: alfred.andrag@agrico.co.za W: www.agrico.co.za

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

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

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

Invincible Valves (Pty) Ltd 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

KayTar Valves T: +27 (0) 21 987-8292 E: clinton@kaytarvalves.co.za W: www.kaytarvalves.co.za

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

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

BALL VALVES

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

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

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

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

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

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 BUTTERFLY VALVES

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

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

CONTROL VALVES

Pleix-Quip Africa Mine Track & Tools (Pty) Ltd

Aintsworth Valves

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

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

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

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

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

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

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

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

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

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

Aintsworth Valves

VAG-Valves South Africa Klamflex Pipe Couplings

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) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com

Pipes, Pumps and Valves Africa - Sept/Oct 2017

VALVES KNIFE GATE VALVES

ACCESSORIES

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

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

MECHANICAL PACKING

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 PIPES

Pleix-Quip Africa 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 PLUG VALVES

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

Rotork Africa Tel: +27 (0) 11 453-9741 (Jhb) Tel: +27 (0) 21 556-4677 (CT) Email: juan.oglesby@rotork.com Web: www.rotork.com

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

FOUNDRIES

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

KEW Foundries

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 ENGINEERED PLASTICS

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

Aintsworth 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 SLEEVE VALVES

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

PCS Foundries

Tectra Automation Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za

Aintsworth 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

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

T: +27 (0) 11 740-9814/5/6 F: +27 (0) 87 940-1627 C: +27 (0) 82 598-9298 E: connie@pcsfoundry.co.za

HOSES

Sinvac Castings T: +27 (0) 10 446-0874 F: +27 (0) 86 501-8556 E: wynand@sinvaccastings.co.za W: www.sinvaccastings.co.za

CHICK HENDERSON Chick Henderson

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com 46

Pipes, Pumps and Valves Africa - Sept/Oct 2017

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

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

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VAMCOSA

VALVE AND ACTUATOR MANUFACTURERS CLUSTER OF SOUTH AFRICA

Tel: +27 (0) 11 748-0200 Fax: +27 (0) 11 421-2749 Email: dfc@dfc.co.za www.dfc.co.za

Tel: +27 (0) 79 492-3043 +27 (0) 82 677-5374 Fax: +27 (0) 57 357-4217 Email: info@ariafrica.co.za Web: www.ariafrica.co.za

Tel: +27 (0) 11 951-5000 Fax: +27 (0)11 955-4389 Web: www.cobra.co.za

Tel: + 27 (0) 11 397-3665 Fax: + 27 (0) 11 397-3803 Email: info@az-armaturen.co.za Web: www.southafrica.az-armaturen.de

Tel : +27 (0) 11 422-4326/7 Fax: +27 (0) 11 421-7842 Email: sales@dualvalves.com web: www.dualvalves.com

Tel: +27 (0) 11 823-6620 Email: info@edart.co.za Web: www.edart.co.za

Tel: +27 (0) 11 864-2582 Fax: +27 (0) 11 864-2381 Email: sales@ithubavalves.co.za Web: www.ithubavalves.co.za

Tel: +27 (0) 11 474-6180/4 Fax: +27 (0) 11 474-6136/7 Email: sales@gunric.com Web: www.gunric.com

Tel: +27 (0) 11 433-3968 Fax: +27 (0)11 433-9107 Email: sales@uvc.co.za Website: www.ainsworth-valves.co.za

Tel +27 (0) 11 955-1119 Email: sales@klepvalves.co.za Web: www.klepvalves.co.za

Tel: +27 (0) 39 315-7093 Fax: +27(0) 39 315-7896 Email: info@lwtanks.co.za joanne@lwtanks.co.za james@lwtanks.co.za

Tel: +27 (0) 12 653-1156 Email: sales@paltech.co.za Web: www.paltech.co.za Tel: +27 (0) 11 927-4850 Fax: +27 (0) 11 927-4878 Email: enquiries@mitech.co.za Web: www.mitech.co.za

Tel : +27 (0) 11 882-8030 Fax : +27 (0) 11 882-8038 Email: nivenp@rgrtech.co.za Web: www.rgrtech.co.za

Tel: +27 (0) 21 556-1805 Email: info@valcogroup.co.za Web: www.valcogroup.co.za

Tel: +27 (0) 11 452-6826 Fax: +27 (0) 11 609-4223 Email: enq@floval.co.za Web: www.floval.co.za

Pipes, Pumps and Valves Africa - Sept/Oct 2017