Pumps and Valves Africa Q1 - 2016

Pumps and Valves Africa - Q4 - 2016 1

TBA

TBA

ENDORSED By SAPMA (South African Pump Manufacturers’ Association) and VAMCOSA (The Valve and Actuator Manufacturers Cluster of South Africa)

Q 1 -2016

Pumps General Cover.indd 2 4/7/2016 9:51:09 AM

2 Pumps and Valves Africa - Q1 - 2016

Providing

INNOVATIVE

&

RELIABLE

flow control solutions

for more than

SIX DECADES

KIRLOSKAR VALVES

Pumps | Valves | Hydro Turbines | Turnkey Projects

Water Resource Management | Irrigation | Power | Industry | Oil & Gas | Marine & Defence | Building & Construction| | Distribution (Small

Pumps) | Valves | Customer Service & Spares

BRAYBAR PUMPS (PTY) LIMITEDA Kirloskar Group Company

Corner of Horn & Brine Street, Chloorkop - Kempton Park, Gauteng, 1620, South Africa Tel : +27 (0) 11 393 2841, +27 (0) 11 393 7177/81/82 � Fax : +27 (0)11 421 6793, [email protected]

mailto:[email protected]


DisclaimerOpinions 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.

Contents

Pumps & Valves AfricaSales Manager: Helen Benetts

Tel: (011) 047-2400

Cell: 083 281 5761

Email: [email protected]

www.pumpsandvalves.co.za

Production: Jackie Nene

Contributors: Ronel Kotze,

Tony Stone

ASSOCIATION NEWSFrom The Chairman’s Desk 4Introduction to VAMCOSA 5Second to None Water Pump Solutions from Goscor Power Products 6PVS Range Vortex Pumps 7BMG Butterfly Valves Efficient Flow Control 8Another Disaster Looming? 10Borehole – An Alternative Water Supply - A Backyard Borehole Drilling Project In Progress 12Old Technology - New Heart 14Modern-Day Sewerage Systems Require Expertise and Reliability 16Innovation in Detail: The New Generation of Elastomer Bellows Seals Emg1 and Emg 18100% Commitment to Growth in Southern Africa 20New Pump Range from Metso 21HFT appointed Fleetguard® Super Dealer for Southern Africa 22Process Pump Delivery Contract 24The 750mm / 30” Dual Valve (DFV) 26Premier Valves Adds Metal Seated Butterfly Valves to its Range 27Viable Solution to Replace Bucket System In Rural Areas 28Enough Power for Mars Lander’ NASA Tests First 3D-printed Space Engine 30Efficient Engineering’s Diversified Strategy Delivers Solid Value 32A Survival Guide in Times of A Water Crisis 33Tectra Automation Gains Entry to Oil & Gas Valve Process Market 34

VALVE GUIDEAir Valves 35

Ball Valve 35

Butterfly Valves 36

Check Valves 37

Control Valves 37

Diaphragm Valves 38

Fire Hydrants 39

Gate Valves 39

Knife Gate Valves 40

Manual Actuator 41

Plug Valves 41

Pinch Valves 42

Pneumatic Actuators - Double acting 43

Pneumatic Actuators - Spring return 43

Pressure Reducing Valve (PRV) 44

Safety Valve 45

Sleeve Valve 45

Taps, Cocks 46

Index to Advertisers

AESSEAL 31Ainsworth 38APE Pumps 26, 36Becker 7BMG 24Dual Valves 40, 42EagleBurgmann 19Franklin IBCGrundfos 13, 44Gunric Valves 46In-Quest 11Kirloskar Valves IFCKSB OBCMetso 25SAM Engineering 9SAPMA OFCUnique Engineering 23VAMCOSA OFC


Q 1 -2016



http://www.pumpsandvalves.co.za


From The

Chairman’s

Desk

A Grundfos Pump Audit evaluates pump efficiency and the potential for saving energy at a site. A Pump Audit results in an overview of pump performance and suggestions for improvement.

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Pumps are among the industrialised world’s biggest energy consumers, responsible for 10% of global electrical energy use. At the same time, most pumps waste energy due to incorrect sizing, lack of intelli-

gent control, operation in an inefficient duty point or out-dated technology.

Pump Audits are one of our initiatives to help companies seize massive energy-saving opportunities,” says Michael Laustsen, Application Manager at Grundfos.

Onsite and in-depthDuring a Pump Audit a Grundfos sales and service engineer work in close cooperation with the pump operator.

The audit involves an onsite inspection, measurement and diagnosis of the pumps installed. The sales engineer produc-es a report after the data is analysed. Among other factors, the report shows current annual energy consumption of the pumps along with a forecast of savings and payback time for any recommended new pumps and their control systems, explains Michael Laustsen.

Save up to 60 percent Pump audits have produced tangible results for all types of customers. Many types of industries and water supply com-panies have cut their energy consumption by 40-60%. Their new pumps pay for themselves in little time.

“German brewery Pfungstädter reduced its pump oper-ating costs by nearly two-thirds after a Grundfos Pump Audit revealed inefficiencies in its process cooling pumps. Hansol Paper, the biggest paper manufacturer in Korea, cut its annual pump operation costs by 40%. And Unilever Ice Cream UK has saved between 20-40% in operational costs

after replacing its supply system pumps; payback time for the changeover ranged between three and 12 months,“ says Michael Laustsen.

Any companies or individuals who wish to join SAMPA can contact either SAPMA or SEIFSA [email protected] or [email protected]


http://www.grundfos.com


From The

Chairman’s

Desk

Introduction to VAMCOSA

The Valve and Actuator Manufacturers Cluster of South Africa (VAMCOSA) was formed in July 2011 and works within the Department of Trade and Industry (the dti) designated cluster parameters. VAMCOSA’s focus is to bring local valve and actuator manufacturers together in order to create a common focus and goal for the respective industries. VAMCOSA provides an effective platform for its members to Lobby Government through designated channels of the dti and operates under the auspices of the South African Capital Equipment Export Council

(SACEEC) with regard to industry specific concerns.

Procurement of locally manufactured valves and actuators strengthenedThe Valve and Actuator Manufacturers Cluster of South Afri-ca (VAMCOSA) is pleased to announce that on 11 February 2016, National Treasury published the updated Instruction Note stipulating the minimum threshold for local produc-tion and content for valve products and actuators.

The updated Instruction Note provides clarity on topics such as how local content should be calculated and what constitutes local content, whilst at the same time provides

some protection for major suppliers such as foundries, forge shops, and steel/stainless steel suppliers.

Clarification regarding how the 70% local content is made up includes the use of locally produced and certified cast-ings, forging and fabrication as well as verifiable manufac-turing activities such as machining, drilling, coating, assem-bly and testing.

Further, the averaging-out of local content either across any number of valves and gearboxes / actuator combinations or locally made and imported valves or other items is not permitted. Each individual valve, manual actuator or pneu-matic actuator is subject to the minimum 70% local content threshold.

In addition, the valve type list has been updated to include the “also known as” names of valves. For example a check valve is also known as a non-return valve or reflux valve or tilting disk valve and so on. This to curb the number of state-owned-entities, departments, including municipalities as well as contractors working with state-spend, assuming that by changing the name of the valve in the tender or request for information process, that designation does not apply.

To find out more about VAMCOSA :Mark Wilson – current Cluster Champion 082 892 5719, www.vamcosa.co.za

Mark Wilson

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http://www.vamcosa.co.za


Second to None Water Pump Solutions from Goscor Power

Products Goscor Power Products supplies an exceptionally wide range of compact, reliable and efficient water pumps to meet virtually any pump application in the agricultural and

construction industries.

“A farmer’s water pump requirements are as diverse as the agricultural industry itself,” says Mark Bester, Man-aging Director for Goscor Power Products. “Whether a farmer needs a water pump to irrigate or fertilize his

crops or to pump water to or from storage tanks, we have ensured that we stock a range of petrol and diesel water pumps that is wide enough to meet practically any water pump requirement and budget.”

The comprehensive water pump offering from Goscor Pow-er Products includes clear water, chemical (fertilizer and salt water), slurry, semi- and trash pumps as well as high volume units. “To ensure that we meet our customers’ requirements spot on, we have gone a step further; we have extended our range to be able to offer high quality, world leading pre-mium brand water pumps to more affordable options,” ex-plains Bester.

The PTX320 water pump is the company’s flagship. Driven by the highly advanced, economical and easy to maintain

Robin EX engine, this powerful pump delivers up to 1000 l/minute and boasts a 32m pump lift capacity and a suction height of 8m, making this unit ideally suited for heavy duty applications that require large pumping capacity.

The LT20XC water pump is a more affordable solution for light duty applications. While lighter on the pocket, the LT20XC certainly does not compromise on quality, perfor-mance and reliability; with a 20m pump lift capacity and a suction height of 7m, this pumps has a delivery capacity of up to 360 l/minute.

Goscor Power Products’ water pump technology boasts a number of additional features for economical and trou-ble-free operation:

• A durable and tough construction - the impeller and in-ner-casing manufactured from cast iron while the pump-ing casing is manufactured from aluminium die casting;

• Self-priming: no water is required for subsequent pump-ing operation once initial pumping is done;

• Water-resisting properties: mechanical seal

The complete water pump range is available and supported by Goscor Power Products’ dealer network which is strategically located across South and southern Africa including Botswa-na, Mozambique, Namibia, Zambia and Zimbabwe.

Goscor Power Products has over 30 years’ experience in the supply of a holistic spectrum of power equipment including pumps, generators, welders, firefighters, engines, rammers, rollers and compactors, backed by quality parts and reliable technical teams.

Goscor Power ProductsTel: +27 (0) 11 230 2600

Email:[email protected] Web: www.goscor-power-products.co.za


http://www.goscor-power-products.co.za


PVS Range Vortex Pumps

Becker Mining South Africa’s PVS range of vortex pumps has been designed to efficiently pump sludge and slurries

containing large abrasive solids and fibrous materials in light, medium and heavy service industries.

The PVS (pumpmor vertical spindle) range, which can handle solids to 72 mm (3 inches) and S.G’s (specific grav-ities) to 1,5, achieves up to 87 m heads at speeds of 2 950 rpm. These units are available in two and three inch models, with a 0,7 m spindle length and single motor drive.

“The most important feature of these vertical pumps is the recessed, non-clog impeller design that prevents binding and clogging problems. Since the impeller is clear of the pump cas-ing, any solids and fibrous materials that enter the suction inlet will be ex-pelled through the pump discharge, without damaging the impeller,” says Theo Cambanis, Becker Mining South Africa. “Another advantage of Becker’s pumps design is that spares are com-pletely interchangeable. This reduc-es inventory management costs and simplifies on-site repairs. Because all components are locally manufactured, these pumps are readily available and a large stock holding of spares and raw materials ensures swift delivery throughout the country.”

The PVS series, with a robust one piece casing, has been designed to efficient-ly cope with all types of solids and fi-brous materials. A locknut that fastens the impeller to the shaft prevents the

impeller from turning off if the motor is started in the wrong rotation direction.

These pumps have a sleeve stuffing box clearance that minimises blow-back of materials being pumped around the shaft sleeve, without requiring sealing contact. A high strength pipe column

maintains alignment be-tween the bearing frame and its casing. There are no submerged bearings on the cantilevered shaft.

Bearings have been se-lected for a minimum ser-vice life of 24 000 hours when operating at any point on the hydraulic coverage curve with 1,0 S.G. Grease lubrication is standard.

These pumps have a heavy duty construction,

with chrome iron CR28% material, which has been hardened to withstand abrasive materials and for increased service life. When in its annealed state, it is 280-400 BHN, after undergoing heat treatment, it is 650-700 BHN. Other materials include cast iron and SS316.

Becker Mining South Africa employs a fully integrated ISO quality manage-ment system as part of a dedicated design, manufacturing, testing and re-pair facility. The company is also able to adjust its extensive range of pumps to suit specific requirements.

Becker Mining South Africa

Theo Cambanis

Tel: 057 396 2704

E [email protected]

Web: www.za-becker-mining.com

Becker Mining South Africa’s PVS range of vortex pumps has been designed to efficiently pump sludge and slurries containing large abrasive solids and fibrous materials in light, medium and heavy service industries


http://www.za-becker-mining.com

www.za.becker-mining.com



BMG Butterfly Valves Efficient Flow Control

BMG’s strategy to enhance its fluid technology services to meet growing market demand, encompasses the introduction of new products, with the latest developments

in design technologies, materials and coatings.

The company’s expansion programme in the fluid technology sector also involves increasing stock-holdings through more than 140 BMG branches and a wide distribution network in South Africa and

across borders into Swaziland, Zambia, Botswana, Mozam-bique, Namibia and Tanzania.

“BMG boosts its fluid technology services with dependable technical support to ensure optimum safety, efficiency and extended service life of every system, even in corrosive en-vironments. With broad technical capabilities, the team is able to solve problems, in applications where conventional components have failed after short periods of service,” says Wayne Holton, fluid technology manager, BMG – Bearing Man Group.

“BMG’s fluid technology services also cover project engi-neering and consulting, cylinder design and manufacture, training, repair and testing, as well as onsite container ser-vices.”

The company’s extensive range of components for fluid technology systems and general industrial applications, in-cludes valves, hydraulic hoses and fittings, accumulators, cylinders, heat exchangers, hydraulic motors and hydraulic

plumbing, as well as pumps and reservoir accessories.

“Compact butterfly valves, with good flow char-acteristics and low maintenance requirements,

are important components in BMG’s extensive range of valves for industrial flow control,” says Willie Lamprecht, national product man-ager valves, BMG.

An advantage of using quarter turn butterfly valves rather than any other type of valve, is the simple, wafer shaped de-sign, with fewer parts, for easy repair and minimal mainte-nance.

Although butterfly valves and ball valves are both quarter turn, the benefit of butterfly valves is when they are actu-ated pneumatically, they open and close very quickly. The rotational disc in butterfly valves is lighter than a ball and these valves requires less structural support than a ball valve of the same diameter.

Unlike a ball valve, the disc of butterfly valves is always pres-ent in the passageway within the flow. This means a pressure drop is induced in the flow, regardless of the position of the valve. Ball valves should only be used for isolation, whereas butterfly valves can be safely used for isolation and control of flow.

BMG’s Desponia centric butterfly valves (DN 25 -1600) with

Bianca centric butterfly valves have a durable plastomer liner suitable for aggressive and cor-rosive fluids

An advantage of using quarter turn butterfly valves rather than any other type of valve, is the simple,

wafer shaped design, with fewer parts, for easy repair

and minimal maintenance


an elastomer liner, are designed for safe and reliable regula-tion of liquids and gases in diverse industries. This range has a maximum working pressure of 16 bar and an operating temperature range of between -20C and +140C accord-ing to the material.

Bianca centric butterfly valves (DN 32 -900) with an on/off and control service, have a durable plastomer liner suitable for aggressive and corrosive fluids. These high performance valves have a 16 bar maximum working pressure and an op-erating temperature range of between -20C and +200C depending on working conditions.

Special ATEX valves in this range are suitable for use in ex-plosive atmospheres.

Other valves available from BMG include seated, knife and wedge gate valves, as well as ball type check valves, thermo-plastic, diaphragm, pinch and angle seat valves.

This range is suitable for reliable performance in diverse in-dustries, including mining, refining, power generation, iron and steel, materials handling, food and beverage, pharma-ceutical, paper and pulp, chemical, sugar and automotive.

BMG – Bearing Man Group Wayne HoltonTel: (011) 620 1500Email: [email protected]: www.bmgworld.net

Desponia centric butterfly valves with an elastomer liner, are designed for safe and reliable regulation of liquids and gases in diverse indus-tries

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

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

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

Our range of pumpproducts include:

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Providing customised pump solutions to various industries

Pump design techniques that ensure our pumps are manufactured to last

High performance - high quality products, excellent service

Alloys to suit all applicationsProud Manufacturers of SAMCO® Pumps

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Another Disaster Looming?By Tony Stone

It’s not the disaster that has already hit Barberton’s Lily Mine but the potential disaster which looms ahead that should be of concern.

For the community of Louw’s Creek, a small town midway between Barberton and Kaapmuiden, the 5 February

2016 will always be remembered. Since the huge sinkhole first ap-peared at the entrance of the Lily Mine and swallowed three mine employees working in a shipping container being used as a lamp room, there have been three more slope collapses into the hole.

In the latest incident, a large con-crete structure at the entrance of the mine tunnel, and soil from a hill next to the sinkhole, broke off and fell into the same hole where the container is buried. Rescue op-erations were called of due to the high risks involved and imminent danger to rescue personnel. As tragic as this story is, another po-tential disaster is looming, from a clear and ever-present danger.

As invasive as it can be, water flows into a mine whenever a mine is operated at depths, which is always the case, and even in dry areas. The Louw’s Creek area receives an average of 672 mm of rain per year, with most of this rain occurring during the summer months.

A recent Department of Water and Sanitation study into groundwater showed that, in an evaluation of the structur-al geology and the hydrogeological conditions of the area, together with a suitable geophysical method for the envi-

ronment, borehole drilling success rates reached 89%. And, besides this success rate, a high median yield was achieved.

According to geohydrologists, groundwater constitutes roughly 60 times that of surface water, which means that the flow of surface water to underground resources (aqui-fers, fissures, lakes etc) is significant.

Kim Ncube-Hein, a professor of mining geology at WITS University, said, “When a mine collapses, geologically, it’s because the rock strength, meaning the ability of rock to support weight, is overcome by the force of gravity and it collapses. In the case of Lily Mine, where a sinkhole formed, Ncube-Hein expended this was technically not a mine fail-ure but gravity. A sink occurs because the underlying sub-strata are eaten away by groundwater, such as carbonate, leaving a hole.”

Mining operations at the Lily mine, which is well below the water table, places the mine operators in a potentially seri-ous situation. Water, caused by the amount and pressure of groundwater, which can and does flow into the mine, needs to be pumped out at a constant rate. Now that there is an 80 m deep open pit, the effect of pore water pressure on the stability of the high pit wall creates more instability.

This means that an emergency water management plan needs to be implemented – if the mine is to continue op-erations. Given that it has mineral resources of 1.9 million ounces (21.86 Mt @ 2.70 g/t) and ore reserves of 0.35 mil-lion ounces (4.27 Mt @ 2.60 g/t) in an ore body which ex-

The massive sinkhole that formed at the entrance to the Lily mine

A Google view of the Lily mine’s location


tends for at least 2,000 m along the strike and remains open-ended at depths to and in excess of 700 m below surface. Up until the trag-edy, the mine was producing 32 000 tons per month, at 2.7 grams per ton.

Adding to the complexity of the Lily mine equation, the mine is located in the Barberton Greenstone Belt. Its 2 m to 15 m wide ore body is con-tained within a prominent shear zone situated along, and struc-turally controlled by, the Lily Fault which defines a major structural break along the northern flank of the Archaean Barberton Greenstone Belt.

DewateringMine dewatering is achieved by pumping continuously from a series of dewatering wells around the mine and by install-ing pumps in special sumps on the mine floor to remove wa-ter in mine shafts and tunnels. No doubt Lily engineers un-derstand all the hydrogeological properties of the mine and are in a good position to design an effective and efficient emergency dewatering system that meets all the statutory and mine requirements.

Evens so, mine dewatering operations must optimize the locations and pumping rates of these dewatering wells, as well as to control regional “drawdown”, which, depending on geologic conditions and min-ing practices, cones of depression (groundwater drawdown areas) can be as small as the mine itself or as large as 25 km2. The Lily mine is on the edge of a major, natural water drawdown area.

To fight fire with fire, so to speak, a key strategy would be to lower the groundwater level over a wide area around the mine using the deep well borehole system, which comprises an array of boreholes pumped by submersible pumps. This will lower the groundwater level and create a cone of de-pression or drawdown around each borehole. Several boreholes acting in combination can lower groundwater level over a wide area around the mine. And, be-cause the technique does not op-erate on a suction principle, large drawdowns can be achieved, lim-ited only by the depth of the bore-holes, and the hydrogeological conditions.

If nothing is done, or an ineffective system is put in place, the mine will be lost. It will be interesting to see what decisions are taken.

Reference:

• “Prediction of groundwater inflow and height of the seepage face in a deep open pit mine using numerical finite element model and analytical solutions”, Ahmad Aryafar et al, 2007.

• “The anatomy of a tragedy”, The Star, 23 February 2016.

A range of Hydroyech indus-trial pumps


Borehole – An Alternative Water SupplyA Backyard Borehole Drilling Project In Progress

Johannesburg Water has

embarked on a city-wide

campaign to promote the

value of backyard boreholes on properties in

the City. Water usage in some of Johannesburg’s more affluent

suburbs is way above average and, within the

context of South Africa’s crippling

drought and water shortages,

this has to change.

Guided by govern-ment policy, the MMC of the Department of Envi-ronmental and Infrastructure Services in Gauteng,

Matshidiso Mfikoe, launched a borehole campaign on 3 Feb-ruary 2016 at the Bryanston Country Club in Johannesburg.

“Today, there are more reasons than ever for drilling a water borehole, it is an excellent way to access pure and natural

underground water. Although initial costs of drilling and install-ing pipes and pumps may be high there are many long-term ben-efits in getting your water straight from the ground,” Lungile Dhlamini, Managing director of Joburg Wa-ter, said.

The average depth at which water is struck in Johannesburg is 65 metres, but this varies in different parts of the city. Water depth and rock formations determine the ultimate costs of drilling the borehole.

A quality borehole that is well-maintained is an asset that can last for up to 15 years. It also increases significantly the value of the prop-erty. There are very little ongoing costs as-sociated with the bore-hole – provided it is sunk well and properly

maintained.

Their guidelines are:• Determine if there are other boreholes in your area. This

will give you a good indication whether there is ade-quate ground water available and at what depths,

• Use a professional and registered borehole company that offers a complete service and ask for at least two references, especially clients who their borehole for a couple of years as it would provide proof of workman-ship and after sales service,

Backyard borehole dtrilling

A quality borehole that is well-maintained is an asset that can last for up to 15 years

By Tony Stone


• Acquaint your-self with the mu-nicipal by-laws and regulations and take environmental factors into consideration,

• Check that there are no water or sewerage pipes or electric cables under the ground where the drilling will take place,

• Ensure the borehole conforms to safety regulations and do maintenance on a regular basis

• Remember whether there is water or not , the client car-ries the cost, so be prepared for any scenario.

• Benefits of drilling a water borehole

• Saves cost – borehole water costs less than the average of municipal water.

• Perfect pressure – a borehole can achieve the water pressure for its purpose.

• Avoid price hikes – with a borehole system you will not

MMC Matshidiso Mfikoe

Managing director of Joburg Water Lungile Dhlamini

be affected by future increases in water prices.

• Improved quality – water derived from a borehole is of-ten of high quality.

• Locally sourced – it comes from underneath your prop-erty and no energy is wasted on transportation;

• Saves water – with Borehole water you will be able to save directly because you are going to source pure wa-ter from your land rather than from your normal tap.

For more information and professional advice on technical issues, contact the Borehole Water Association of Southern Africa. If not registered with the Association, do so now to take advantage of this opportunity.

OPTIMISED FOR ENERGY EFFICIENT PUMPING

GRUNDFOS (Pty) LTD16 Lascelles RoadMeadowbrook Ext 13. Germiston 1609Phone: (+27) 10 248 6000www.grundfos.co.za

General advert Pump and Valves 15.indd 1 2015-12-03 04:25:12 PM

http://www.grundfos.co.za


Old Technology - New HeartDense media separation technology is not new. It’s been around since the 1960s and

1970s. But, what has leapfrogged the technology is that it has gone modular, and even mobile, with slurry pumps at the heart of it all.

By Tony Stone

Dense Media Separation (DMS) works on the principal that, if a ‘liquid’ media has a specific gravity (SG) of 2.5, every mineral with a SG greater than 2.5 will sink and

those lighter than 2.5 will rise to the top and float. To get the optimal ‘liquid’ media, a mixture of fine media material, such as magnetite (SG 5.1) or ferrosilicon (SG 6.8) is suspended in water, which, when mixed with a mineral, forms a slurry - with a specific gravity that will allow low density material(s) to float, and other high density material(s) to sink.

The SG of separation is the SG of the media slurry. This can range from 1.45 (for coal), to around 2.8 (for diamonds). Magnetite, as a fine media material, is favoured for coal and ferrosilicon for dia-monds. However, other min-erals can also be harvested us-

ing the DMS method, such as iron, lead, zinc, chromite, manganese, fluorspar and spodu-mene, a pyroxene mineral consisting of lithium aluminium inosilicate.

Modular and mobile plantsToday, the design and construct of a DMS plant is totally mod-ular, whether stat-ic or mobile, which, either way, means the entire structure can be moved. Af-ter construction, a plant’s component fit and quality can be checked, prior to transportation to its

operational site. With the civils in place, the modular plant can be reconstructed, or mobile plant positioned. Fully com-puterised, using turnkey PLC software, and running typically off a Microsoft platform, all pumps and valves, fitted alarm triggers, can be remotely controlled. If any component of the plant does not perform to tightly defined parameters in

specific zones, which can loosely be de-scribed as washing, mixing and separa-tion, the plant can be shut down.

To use coal as the example, and while washing may read as a simple process, there is nothing simple about it. The initial washing process is exactly that, washing, but it also removes the fines and small coal pieces which fall through a sizing and dewatering vibrating sieve during the washing process. This piece of equipment

is built to exacting standards of reliability and efficiency.

After washing, the coal moves to a miner, a conical tank where clean water and finely ground magnetite is added in preparation

Peabody obviously got it right. A lesson learned.

A Bond modular DMS system

A cross-section of a slurry pump, the heart of a DMS system


for the separation process. At the end of the entire process, the mag-netite is recovered for reuse, in or-der to reduce operating costs. After separation and final washing, the medium is pumped to a magnetic drum that captures the magnetite. It is then scraped off and collected for reuse.

Coal, once mixed in the con-ical tank with clean water and magnetite, is pumped to two-ended cone shaped cyclones that utilise fluid pressure energy to create a rotational fluid motion. This rotational motion c a u s e s the relative movement of the materials suspended in the medium, thus permitting separation of the lights (good coal) and the heavies (bad coal and other material) from one another.

The rotational motion of the fluid is created by the tangen-tial injection of the medium into the cyclone. The discard portion, the heavies, sinks downward and leaves the cyclone at the spigot, while the lights exit upwards via the vortex finder. By extending the cylindrical section of the cyclone and introducing a barrel section, the residence time within the cyclone is effectively increased. This improves the sharp-ness of separation between the good coal and the discard.

After separation, the good and bad coal are washed to re-cover the magnetite and then conveyed to the relevant stockpiles. The bad heavies can be used for ground fill in an opencast mine for rehabilitation purposes.

Energy optimisationAs we learned from Russian engineer and innovator, Ge-inrich Altshuller, much can be learned by looking at what other folk have done to address a particular problem – and energy is everybody’s problem. Peabody Holding Company completed a project to improve the performance of a coal slurry pumping system at its Randolph Coal Preparation plant.

Separation takes place in the DMS’ hydrocyclone

The initial washing process is exactly that, washing, but it also removes the fines and small coal pieces which fall through a sizing and dewatering vibrating sieve during the washing process

Changes to their coal washing process resulted in cyclone pump systems being larger than necessary to meet system requirements. The performance optimization project con-ducted on one of the six classifying cyclone pumps identi-fied three energy-saving opportunities, inter alia the motor, belt drive, and pump components of the pumping system. The modifications saved 87,184 kWh of electricity in annual energy savings, and the overall energy consumption of the pumping system decreased by approximately 15 percent.

According to Peabody, many design engineers purposely oversize pumps, taking into account factors such as safety margins, potential corrosion build up, and the possibility of increased flow requirements in the future. This often leads to throttling the system with a control valve because the pump delivers more flow than the system requires. The result is a pump that is not running at its Best Efficiency Point (BEP). Possible consequences of this include noise and vibration, excessive bearing loads, cavitation, and excessive power consumption. Pumps that are being throttled and are oper-ating far off their BEP should be considered for retrofit. Possi-ble changes to consider are retrofitting with a smaller pump, using an impeller with a smaller diameter, or slowing the operating speed of the pump. In many cases, these changes will not only save energy, but also increase the reliability of the system.

Peabody obviously got it right. A lesson learned.

To Read All our Magazines Online

www.pumpsandvalves.co.za


Q 1 -2016




Modern-Day Sewerage Systems Require Expertise and Reliability

Rapid urbanization is resulting in an urgent requirement for upgraded sewerage systems in cities throughout Africa where authorities are realizing the importance of

reliable and efficient pumps to cope with ever-higher volumes on an around-the clock basis.

In addition, authorities are increasingly calling on techni-cal expertise to assist in the design and optimisation of pumping systems in order to design sewerage works that are robust enough to deal with daily peaks and troughs,

as well as meeting challenges as a result of weather anoma-lies, storm water ingress and even drought conditions.

At the forefront of sewerage pumping technology is local manufacturer KSB Pumps and Valves with a full range of products designed and manufactured especially to meet the

industry’s requirements, as well as being rugged enough to handle African conditions. Technical expertise is also avail-able to design and manufacture bespoke systems where required or to lend technical assistance and advice to local authorities.

Future-proof systemsKSB water and waste water projects and applications man-ager, Hendrik Enslin, says that nowadays technical advice and support is equally as critical as choosing the right sys-tem and design in the first place. He adds that with the right system sewerage works should be able to cope with almost any eventuality and remain reliable for more than 20 years.

“In recent times municipalities and water authorities across Africa have moved away from a purely cost-based procure-ment model to rather focus on procuring systems and ex-pertise from local manufacturers with a long and reliable track record of quality products backed-up by efficient and reliable service and support.

“We have been in this industry for more than 50 years and are still standing-by and supporting some of the original old pumps that remain in operation today. That says a lot about our commitment to support our products in the field, as well as the quality of the pumps that we produce. That is the main reason why water authorities are turning to us to maintain and install systems around Africa,” Hendrik says.

Ease of maintenanceHe explains that the requirement nowadays is for long-life pumps with ease-of-maintenance and interchangeability in case of problems. Due to economic constraints it is no lon-ger viable to simply replace pumps and the trend is rather to install serviceable pumps that can be maintained quickly without major disruption to the system.

The systems themselves are being designed with multiple KSB Pumps and Valves water and waste water projects and applica-tions manager, Hendrik Enslin

Technical advice and support is equally as critical as choos-ing the right system and design


Some large scale pumps destined for large works in South Africa

“making a plan” with the next most suitable solution.

“That is the benefit of dealing with KSB and utilizing the enormous range of pumps valves and relat-ed equipment, as well as having the ability to design and manufac-ture bespoke pumps right here in South Africa,” Hendrik adds.

Range of pumpsKSB Pumps and Valves has a wide range of fit-for-purpose pumps in a variety of different materials to suit conditions. The headline sewer range includes Sewatec pur-pose-built sewerage and waste water pumps with run-dry capabil-ity and double mechanical sealed system for reliable long duration pumping without maintenance.

The KRT range of wet and dry ap-plication pumps are sophisticated pumps designed to work in sub-mersible, semi-submersible and dry conditions allowing adaptabil-ity in varying applications. They are designed for sludge and water applications with non-clogging impellers. All pumps can be manu-factured using a variety of materi-als and have different impellers to suit the application. In addition the company has vast range of related pumps and products that have applications in varied applications and that may be suitable for sewer applications as well.

“To discuss the entire range is dif-ficult because of the huge range that we carry locally and abroad at KSB manufacturing facilities glob-ally. Suffice to say we have the right pump for almost every application and as a result municipalities, wa-ter authorities and engineers can call upon our expertise to assist in the refurbishment of old plants, maintenance and replacement of existing pumps, as well as the de-sign of new pumping systems that will be capable of meeting future demands.

KSB Pumps and Valves Annett Kriel

Tel: (011) 876 5600Email: [email protected]: www.ksbpumps.co.za

KSB Pumps and Valves KRT pumps installed and ready to be put into operation at a local sewage plant

layers of redundancy with standby pump and circuits avail-able when necessary. Simultaneously there is a move to using appropriate technology in the right application that equipment is designed for application rather than simply


http://www.ksbpumps.co.za


Innovation in Detail: The New Generation of Elastomer Bellows

Seals Emg1 and EmgWith the latest generation of pump seals, eMG1 and eMG, EagleBurgmann has

launched a further development of the million-fold proven MG1 on the market which can be used to seal, among other things, chemical pumps, water and waste water pumps, circulating pumps and submersible motor pumps in numerous industrial

sectors.

The eMG1 is 100 % compatible with the well-known MG1 standard seal. It has been innovat-ed in detail and functionally expanded. The opti-mized geometry of the eMG1 elastomer bellows

was tested in long-term applications on EagleBurgmann test facilities and in practical use. A vastly reduced outer diameter of the bellows support now allows direct sup-port by a retaining ring or with the use of much smaller spacer rings.

The optimized bellows shape improves the automatic alignment of the bellows on the shaft and minimizes stick-slip effects. The characteristic innovative element is the profiled PEEK-PTFE disk which ensures consistent centering across the entire pressure operating range, exhibits outstanding sliding properties and safeguards the automatic alignment of the elastomer bellows in operation through continuous self-cleaning. The eMG1 is available in numerous material combinations. The

This provides manufacturers with new opportunities in pump construction

eMG: 20% shorter installation length

eMG1:100%: competable with MG1

program now includes the new face ma-terial eSiC-Q7, a powerful silicon carbide optimized towards friction and wear with hydrodynamic properties.

The eMG is identical in construction with the eMG1, but has a 20 % shorter installa-tion length. This provides manufacturers with new opportunities in pump con-struction: e.g., a more compact design due to shorter shafts with the associated material savings and increased efficiency. The rotating unit is extremely space-sav-ing. The computed pre-modelled bellows design and the spring assembly have no excess lengths and the outer diameter of the bellows support was reduced to a minimum. The standard stationary seat of the eMG is also the short-installation type

G6 ring. Synthetic resin impregnated carbon graph-ite) (B) and the optimized silicon carbide eSIC-Q7 are the standard materials.


Features of the eMG1 and eMG:• for plain shafts, unbalanced, elastomer bel-

lows rotating, bi-directional, can be used as single and double seal.

Advantages at a glance:• 100 % compatible with MG1 (eMG1)

• 20 % shorter installation length (eMG)

• Smaller outer diameter of bellows support enables direct retaining ring support, or smaller spacer rings

• Optimal alignment characteristic through self-cleaning of disk/shaft

• Improved centering across entire pressure operating range

• Special bellows design protects the shaft across the entire seal length and the seal face during assembly

• Dimensional adjustments and additional stationary seat geometries possible

Operating range• Shaft diameter: d1 = 15 … 100 mm (0.59"

... 3.94")

• Pressure: p1 = 16 bar (230 PSI), vacuum ... 0.5 bar (7.25 PSI), up to 1 bar (14.5 PSI) with seat locking

• Temperature: t = -20 °C … +140 °C (-4 °F … +284 °F)

• Sliding velocity: vg = 10 m/s (33 ft/s)

• Admissible axial movement: ±2.0 mm

EagleBurgmannTel: (011) 457-9000www.eagleburgmann.com

http://www.eagleburgmann.com


www.eagleburgmann.com


100% Commitment toGrowth in Southern AfricaPamodzi Unique Engineering, established

in 1971, has recently become a proud member of the Pamodzi Group.

The company will now be named as Pamodzi Unique Engineering and will draw its primary strength from its diverse engineering expertise. Locally designed, engineered and manufactured products, reaching

almost every sector of industry, forms the foundation of its operations. Market areas range from mining and rail to chemical, hygienic and agricultural.

Established brands are Eco and Wilflo Pumps, Unique Blast Barricades and BES Pantographs, which are distributed through an extensive network of local and international dis-tributors.

The company is renowned for its pump range and one of the mining industry’s work-horse is the DD 25 and DD 50 Wilflo double diaphragm range, which are locally designed and manufactured. The units have been successfully pumping sludge, slurry, water and sewage for more than 35 years and are easy to operate.

‘Lube free’ units are a big feature, making it environmentally friendly, non-hazardous and suitable for general industry in numerous applications.

Another accomplishment is the ECO range of ‘PD’ positive displacement, helical rotor pumps, which are 100% South African manufactured to ISO 9001:2008 quality standards. They are used for various applications such as gold mining, explosive, chemical, pulp, paper and hygienic food transfer applications.

The Eco positive displacement pump replacement compo-nents were introduced to the mining and general industry in 2007. Since inception, it has proven its worth.

The locally manufactured generic spares perform equally well and in some instances, better than imported products, thus bringing about enormous savings to the market.

In line with the company’s local manufacture policy, it has been servicing the Southern African rail industry and open cast mines with a specialist range of pantographs for more than 25 years.

The local production aspect makes the BES pantograph highly cost effective, from installation and through to main-tenance. All components are manufactured at Pamodzi Unique Engineering’s facility, which is ISO 9001:2008 accred-ited. The range comprises of railway, high speed railway and off-road pantographs.

A full complement of spares is available, thus keeping South-ern Africa on track at all times.

To complete the company’s product portfolio, durable and cost effective blast barricades are manufactured from high-density natural virgin white polyethylene (HDPE), to ensure a far longer life than reground material.

The Pamodzi Group, is a black owned enterprise that sup-ports an entrepreneurial approach. It is the Group’s respon-sibility to ensure that its companies comply or exceed all relevant employment, training and financial statutory re-quirements.

Their essence is to locally design, engineer, manufacture and supply a diverse range of branded products.

Pamodzi Unique Engineering acquired its ISO 9001:2008 accreditation in 1992 and has continued to manufacture in strict accordance with the specifications, thus achieving ex-cellence and quality for its customer base. They would wel-come enquires from established and experienced agencies in African countries.

Pamodzi Unique Engineering, Tel: +27 (11) 826 6111, E: [email protected]: www.uniqueeng.co.za

The Eco pump range of generic replacement components used for dosing applications on the mines


http://www.uniqueeng.co.za


New Pump Range from Metso

Metso has launched its range of MDM and MDR series of hard metal Mill Discharge slurry pumps are designed from the ground up specifically for the most arduous of mill

circuit applications.

The range further enhances the company’s world renowned offer-ing of pumps, some of which have been around for many decades.

Offering sustained performance with max-imum time between mill shutdowns, each pump in the series has been developed with consistent ‘state of the art’ hydrau-lics, limiting inlet velocity at design BEP thus ensuring impact damage from coarse heavy solids is kept to an absolute mini-mum.

The large diameter high aspect ratio im-pellers provide for excellent hydraulic effi-ciency with minimum turbulence at min-imum rotational speed, thereby reducing rate of wear.

The MDM range features a conventional single stage, end suction overhung cen-trifugal design, extra thick casing, a high efficiency solids handling impeller, adjust-able suction side liner and gland side liner, whereas the MDR range has a double cas-ing with gland side rubber liners housed in stiff cast iron outer casing halves. Both pumps are all manufactured from High Chrome iron alloy with a minimum guar-anteed hardness of 650BHN.

The impeller is screwed to an oversized steel pump shaft running in an oil or grease lubricated, axially adjustable taper roller bearing cartridge. An impeller re-lease mechanism ensures safe and simple impeller removal even after long periods of operation.

Careful design provides a reduced impeller overhang re-stricting shaft deflection across a wide range of flows, and in so doing so maximising shaft seal and radial bearing life.

A design feature is a 'double adjustment', enabling both front and back impeller clearances to be reset after components eventually wear. This adjustment is achieved by the adjust-able suction side liner and the axially adjustable cartridge.

The shaft seal is housed in a split stuffing box and gland pro-tected by suitable gland guard which is also split for ease of maintenance. Type of seal used is dictated by application.

Standard options include water flushed, mechanical and the unique Metso EnviroSet TM All seals run on a renewable shaft sleeve.

Pump connections are made with loose steel flanges drilled as required.

Metso, Graham van der BoschTel: 011 961 4000Web: www.metso.com

Metso’s double casing MDR Discharge Pump

http://www.metso.com


HFT appointed Fleetguard® Super Dealer for Southern Africa

Hytec Fluid Technology (HFT) has been appointed ‘Super Dealer’ for Cummins Filtration’s range of Fleetguard® engine protection products for southern Africa, as part

of a recent distribution agreement. This collaboration means that HFT, the hydraulic fluid specialists in the Hytec Group, now offers complete engine protection in addition

to its total hydraulic fluid management offering across the sub-continent.

Coinciding with this collaboration was the recent opening of Cummins Filtration’s new filtration and coolant manufacturing plant at its new regional dis-tribution centre for Southern Africa in Woodmead,

Johannesburg. The premises incorporates Cummins Filtra-tion’s component warehousing and local manufacturing fa-cility, which produces Fleetguard fuel and air filters, and the modern Fleetguard Organic Acid Technology (OAT) engine coolant.

“Fleetguard is ranked as the top two global brands in the international filtration market,” points out HFT General Man-ager Sandor Bottyan. “Cummins Filtration’s manufacturing investment in South Africa, along with their technical skills and stockholding, means our collaboration is mutually beneficial.” These benefits mean HFT can work closely with Cummins Filtration in South Africa, and Hytec’s African ex-perience and tailored hydraulic products, including Bosch Rexroth products, add to the filtration specialist’s market penetration feasibility.”

Bottyan and Cummins’ Components Director for Africa Feroze Chowdary, refer to the synergies between the two companies. “Bosch Rexroth, as a hydraulics OEM and part

of the Hytec Group, and whose hydraulic product range for mobile equipment we support in the region, has a vested interest in delivering high-quality protection for its hydraulic systems,” says Bottyan. “Cummins is the only engine manu-facturer that has invested in its own filtration manufacturing capabilities,” Chowdary adds. “Fleetguard is the only filtra-tion and engine protection OEM in the world that belongs to a high-tech engine manufacturer. We are at the forefront of new emission-regulated diesel engine development, which depend on very high cleanliness levels.”

Both companies’ representatives cite African expansion as one of the collaboration drivers. “Africa is home to some of the fastest developing countries in the world, and there-fore holds massive potential in terms of our African expan-sion ambitions,” says Chowdary. “This complements Hytec Group’s African expansion vision,” adds Bottyan, and Hytec Group product distribution is already active in many coun-tries north of South Africa’s borders through Hytec Services Africa (HSA)”. HSA has comprehensive distribution and oper-ation centres in Botswana, DRC Ghana, Kenya Mozambique, Namibia, Swaziland, Tanzania, Zambia and Zimbabwe.”

There are other similarities that demonstrate compara-ble ideologies. “Underpinning our collaboration with HFT,” Chowdary concludes, “are our overlapping company cul-tures. Cummins Filtration values integrity and investment in

the local community as core overarching principles. We are strong believers in corporate responsi-bility, so as well as promoting local manufac-

turing to create jobs locally, we also sponsor schools and promote skills transfer

into the region.”

HFT will market and distribute the entire Fleetguard range, in-cluding NanoNet® – a recently engineered synthetic fuel filter media designed to extend en-gine life. “When used in one of our diesel filters on an off-road vehicle,” says Bottyan, “the par-ticulate in the diesel is removed to meet the 12/9/6 ISO cleanli-ness class.” Included in the fil-

As Super Dealer for Cummins Filtration’s range of Fleetguard® engine protection products in southern Africa, HFT will market and distribute the entire Fleetguard range, including NanoNet®


ter distribution range is Cummins newly-developed Nano-Force® technology air filters. These are made using the same synthetic Nano media as NanoNet, as well as cellulose media layers for use in conjunction with NanoNet fuel filtration.

“NanoNet fuel filtration extends the life of an engine and the service intervals, without increasing the breakdown risks. A typical mining vehicle has fuel and oil filters changed every 250 hours, with the air filter changed every 500 hours. Fleet-guard filters are now designed to be changed every 1 000 hours, resulting in less vehicle maintenance downtime, im-proving productivity,” Bottyan, points out. “In addition,” con-cludes Chowdary, “environmental impact from disposing of traditional coolants is greatly reduced when our OAT lifelong coolant is used. This is because it need only be changed during or after midlife rebuild, compared to other coolants which are drained every 4 000 to 6 000 hours.”

HFT is the Hytec Group Company responsible for fluid man-agement services within the group. It is the leading hydrau-lic filtration solutions specialist in southern Africa, distribut-ing an extensive product range of pressure, spin on, return and suction filters, as well as exclusive fluid maintenance equipment and decontamination services.

Hytec Fluid Technology, Sandor BottyanTel: +27 (0) 11 976 7300Email: [email protected] Website: www.hytecgroup.co.za

The HY-PRO diesel coalescing filter unit, an offline fuel filtration system with the ability to rapidly remove water from diesel fuel in storage and fuel tanks, forms part of HFT’s exclusive fluid mainte-nance equipment and decontamination services. This HY-PRO unit was showcased at numerous trade exhibitions across the southern African region during 2015


http://www.hytecgroup.co.za


www.uniqueeng.co.za


Process Pump Delivery Contracty

Sulzer has been granted an order for the delivery of an extensive process pump

package to Metsä Group’s next-generation bio product mill in Äänekoski, Finland. The construction work of the mill is scheduled to be completed during the third quarter

of 2017.

Metsä Fibre, part of Metsä Group, is building a new bio product mill in Äänekoski. This invest-ment of EUR 1.2 billion is the largest ever in the wood-processing industry in Finland. The mill’s

annual pulp production will be 1.3 million tons, of which 800,000 tons will be softwood pulp and 500,000 tons hard-wood pulp. Besides pulp, the mill will produce a broad range of bio products, such as tall oil, turpentine, lignin products, bioelectricity and wood fuel.

Sulzer will deliver highly efficient AHLSTAR process pumps, the latest generation of Sulzer MCE medium consistency pumps as well as agitators and vacuum pumps to the bio product mill. The equipment is designed for high reliability and energy efficiency as well as for low operating costs.

The contract includes the manufacturing, testing, packag-ing, and installation inspection of the equipment.

Energy efficiency and low emissions were the central de-sign criteria for the green field bio product mill. Sulzer has substantial expertise in providing energy-efficient solutions and also systematically aims to reduce its own environmen-tal footprint.

The ability to offer complete, reliable, and high-efficient solutions for overall pumping and mixing needs makes Sul-zer a key full-line supplier for the pulp and paper industry, including wastewater applications.

Sulzer Pumps Finland Oy, Tel: +358 10 234 [email protected], www.sulzer.com


http://www.sulzer.com


Why do you need it?– because the new Metso series of Mill Discharge slurry pumps encompass all the experience coupled with an understanding of today’s market needs and demands for improved sustained performance and lower cost. Specifically designed from its inception for mill circuit applications, the MDM hard metal and MDR rubber lined double adjusted slurry pumps offer sustained performance with maximum time between mill shutdowns.

Get in touch, and find out how we can help!

Metso is a leading process performance provider, with customers in the mining, oil and gas, and aggregates industries. Discover more at www.metso.com/pumps.

BEE Ownership Compliant

metso.com – email: [email protected]

Newmill dischargepump range!

QR code for smartphones

http://www.metso.com/pumps



The 750mm / 30” Dual Valve (DFV)

These valves were manufactures in our factory in Be-noni, South Africa. These valve took approximately 15 Weeks to manufacture from the start to the end. These valves will be used for a slurry application on

Capstone (Pinto Valley Copper mine) in America.

The steps leading up till the day of upliftment had to be pre-cise from the organizing of the 40 ft open top container, due to the size of the valves – down to the expected time of ar-rival at the Durban Harbor (South Africa) and everything in between.

On the day of upliftment there was a sense of excitement traveling through the factory and for all involved with this project. We stood with proud as our near to perfect valves where being lifted into the container. The long haul, the pre-cision and accurate details to the valves and the workman-ship all coming together as one, as we bid farewell to the valves.

The container will be at sea for 6 more Weeks before reach-ing its destination in the USA and hopefully reach the client before year end.

Duel Valves, Tel: +27 11 422 4326/7Email: [email protected]: www.dualvalves.com

The Valve Specs:Fabricated Carbon Steel Body

Rubber Lined

Urethane Ball

Roc- Tuff Seat

Pressure Rating: 310 PSI

Flanged & Drilled: ANSI300

APE pumps - Pumps at the

heart of Africa

26 Nagington Road, WadevilleGermiston 1400, South Africa

Tel +27 11 824 4810 | Fax +27 11 824 2770PO Box 14733, Wadeville 1422, South Africa

Email: [email protected] Website: www.apepumps.co.za

Manufacturers of:Vertical industrial turbine pumpsMulti-stage high pressure pumps

Split casing pumpsEnd suction pumps

Vertical sump pumpsAPI 610 pumps

Mining

Power Generation

Waste Water processing

Petrochemicals

APE 267x90 ad.indd 1 2015/12/02 10:28 AM


http://www.dualvalves.com


http://www.apepumps.co.za


Premier Valves Adds Metal Seated Butterfly Valves to its Range

Premier have over the years had some involvement with Triple Eccentric Metal Seated Butterfly valves and manufactured a range under license some years ago, but because

of the popularity of its range of Boving and other Butterfly valves which have been market leaders in the Water Industry for over 30 years, the need did not exist to pursue

this range of valves.

Because the Water industry has become interested in Met-al Seated Butterfly valves in recent years and also because Premier Valves have entered other markets such as the Pet-rochemical industry where this type of valve has been popu-lar for many years, a high quality range of Metal Seated But-terfly valves have been acquired. The Titan Triple Eccentric Metal Seated Butterfly valve is of the highest quality and has all the approvals necessary to be used in the demanding Pe-troleum industry.

Available in sizes up to 2000mm and pressure ratings up to 150bar and temperatures up to 7000 C the Titan can be used to replace many traditional valves such as Gate, Globe and Ball valves and perform the functions better with longer life expectancy. The Titan Butterfly valve is truly a valve for all seasons!

Because of the special machining required to achieve the right angles and tolerances on the seats of a Triple Eccentric Butterfly valve, general importers of this type of valve have to send the valve back to the factory for repair. Because of its extensive in-house capability and co-operation agreements with other facilities in South Africa, Premier offers a compre-hensive repair and back-up service with a fast “turn-around” time for repair of these valves during plant shutdowns. Even though the life expectancy of the Titan Butterfly valve is lon-ger than traditional valves, it is still a comfort to the client to know that full back-up is available when required.

The Triple Eccentric Metal Seated Butterfly valve has been used extensively in High Pressure Mine applications such as Pump Control Valve on 100bar Dewatering Pumps. Where-as traditional valves last for a few years in this arduous ap-plication, these valves have an impressive life span of over 10 years service before reconditioning is required. With the benefits of compactness, ease of operation and “bubble tight” shut-off, the Titan Butterfly valve is set to become a major player in the South African Valve industry.

Premier Valves, Tel: +27(011) 908-3760Fax: +27(011) 908-1268www.premiervalves.com

Advertise in Pumps And Valves Africa Magazine

Contact Helen on Tel: (011) 047-2400

Email; [email protected]

http://www.premiervalves.com




Viable Solution To Replace Bucket System In Rural Areas

A pumping system designed to separate solids and pump waste water over longer distances holds the key to providing acceptable sanitation to rural villages and sparsely

inhabited areas where until recently the bucket system and pit latrines were the only alternative.

Designed and developed by KSB Pumps and Valves, the Ama DS allows treatment of waste water to be undertaken further from treatment plants and makes it viable to collect waste water from larger

collection areas for treatment at centralised plants.

According to Hendrik Enslin, KSB waste water projects and applications manager, the Ama DS system enables wider and more cost effective collection of waste water and paves the way for the development of sanitation systems in rural areas or areas where sanitation was not deemed possible due to unsuitable geographical location or where gravita-tional systems were not possible.

Large area coverage“The genius of the system is the ability to immediately re-move solids from the system and separate it from the water. This enables pumps with smaller free passages to be used and as a result allows the system to pump the water over much longer distances than previously possible.

“In addition, with the solids removed, there is nothing to impede or block the impellers etc and this allows for a far more reliable system and cleaner more hygienic pumps for ease of serviceability. Once solids build-up to a pre-determined level some of the processed waste water is then used to bypass the pumps and flush the solids to the treatment plant.

“This effectively frees municipalities or commu-nities to pump waste to more distant treatment plants or to establish centralised plants that can be

shared by many different communities in a region. We are hoping that this will play a significant role in bringing sanita-tion to all parts of the country,” says Hendrik.

Technological solutionIn typical KSB fashion the company has used technology to overcome an age-old problem and provide configurable s o l u t i o n s that can be tailor-made to suit ap-

plications. Using smart level meters and trending technology the

entire system can be man-aged to ensure the sys-tem is able to cope with

varying demands throughout daily,

Ama DS pumping system developed to separate solids and pump liquids over lon-ger distances

The genius of the system is the ability to immediately remove solids from the system and separate it from the water

We are Bringing out a Buyers Guide in our next issue to Advertise in it Contact Jackie on Tel: +27 11 047-2400Email: [email protected]



weekly and even seasonal fluctuations.

Both water and solids levels are constantly monitored and purged as and when required. Inflow and outlet pumps are only operational when required and as a result the system uses less energy which is an important consideration in far-flung areas. In addition, the Ama DS system is also well suit-ed for applications in municipal and industrial waste water

A typical rural collection system

transport, drainage of hotels, hospitals, campgrounds, low density housing projects etc. Systems are available to handle anything from 6-200 cubic me-tres per hour.

Besides the obvious benefit of provid-ing sanitation in far flung and rural ar-eas, the system also provides a solution that is more efficient than traditional pumping systems, is more reliable as a result of solids being removed before entering the pumps, less downtime as a result of less wear and blockages, clean-er and safer operation and less mainte-nance.

How it worksHendrik explains that the patented sol-

ids separation system removes solids and temporarily stores it in separators. Only pre-treated waste water not con-taining coarse solids flows through the pumps. The pre-treated waste water is pumped through the solids separators in the opposite direction and carries the solids out of the separators and into the discharge line. Through this process the solids separators and pumps are cleaned and ready for the next inflow phase.

“During the design stages our experts also paid great attention to maximising operating reliability in order to keep fu-ture maintenance to a minimum, thus reducing the overall costs. Necessary servicing work can also be carried out while the equipment is in operation and service personnel work in hygienic

working conditions. Maintenance to the externally installed solids separators can be conducted very easily, quickly and without shutting down the system.

KSB Pumps and Valves, Annett KrielTel: (011) 876 5600, Email: [email protected]: www.ksbpumps.co.za

Using smart level meters and trending technology the entire system can be managed to ensure the system is able to cope with varying demands throughout daily, weekly and even seasonal fluctuations


http://www.ksbpumps.co.za


Enough Power for Mars Lander’ NASA Tests First 3D-printed Space Engine

The 3D-printed engine parts, all combined in a real space propulsion system, generated 20,000 pounds of thrust when they were test-fired with cryogenic liquid hydrogen and oxygen by a team from NASA’s

Marshall Space Flight Centre in Huntsville, Alabama.

“We manufactured and then tested about 75 percent of the parts needed to build a 3-D printed rocket engine,” Elizabeth Robertson, the project manager for the additively manufac-tured demonstrator engine at the Marshall Space Flight Cen-ter, said in a NASA press release.

“By testing the turbo pumps, injectors and valves together, we’ve shown that it would be possible to build a 3-D printed engine for multiple purposes such as landers, in-space pro-pulsion or rocket engine upper stages,” she added.

Seven tests were conducted by NASA specialists, with the longest lasting 10 seconds. During the experiments the en-gine experienced both extreme heat, as fuel was burned in the propulsion system at a temperature of more than 3,315C (5,999F), and extreme cold, with its turbo pump delivering liquid hydrogen cooled below -240C (-400F).

These tests allowed scientists to dismiss doubts con-cerning the possible higher delicacy of 3D-printed parts in comparison with traditionally manufac-tured space engine elements that could prevent them from being used in real rocket launches.

“These NASA tests drive down the costs and risks associated with using additive manufacturing, which is a relatively new process for making aero-space quality parts,” said Robertson.

Nick Case, the testing lead of the project, also commented on the issue: “What matters is that the parts work the same way as they do in a con-ventional engine and perform under the extreme temperatures and pressures found inside a rocket engine. The turbo pump got its ‘heartbeat’ racing at more than 90,000 revolutions per minute (rpm) and the end result is the flame you see coming out of the thrust chamber to produce over 20,000 pounds of thrust, and an engine like this could produce enough power for an upper stage of a rocket or a

Mars lander.”

NASA has been working on the 3D-printed engine project for more than three years in cooperation with various com-panies, and had already conducted separate tests for some of the 3D-printed parts in 2014.

The engine components are built by a 3D printer by layering metal powder and fusing it together in a process of ‘selective laser melting.’

The 3D-printing process allowed the sci-entists to build more complex pieces of the engine which would usually consist of several separate parts. As a result, the engine’s turbo pump had 45 percent few-er parts than its traditional analogues; the injector had over 200 fewer parts than a traditionally manufactured version and contained features that became possible only with 3D-printing.

Additionally, the parts such as valves that usually take more than a year to produce were created in a few months.

NASA’s future plans include adding new 3D-printed compo-nents to the engine such as a cooled combustion chamber, a nozzle and a turbo pump for liquid oxygen as well as con-ducting tests with liquid oxygen and methane, as these sub-stances could potentially be produced on Mars and become key propellants for the Martian landers.

NASA, www.nasa.gov

By testing the turbo pumps, injectors and valves together, we’ve shown that it would be possible to build a 3-D printed engine for multiple purposes such as landers, in-space propulsion or rocket engine upper stages

Liquid oxygen/gaseous hydrogen rocket injector assembly built using additive manufacturing technology is hot-fire tested at NASA Glenn Research Center’s Rocket Combustion Laboratory in Cleveland

http://www.nasa.gov


www.aesseal.co.za


Efficient Engineering’s Diversified Strategy Delivers Solid Value

At its open day, Efficient Engineering’s Managing Director, Graham Hartley, said that withstanding plunging commodity prices and resulting slowing demand, the company continues to be part of the solution within the steel industry which plays a critical role in mineral beneficiation and is a key enabler of every part of the

economy. The top five steel consuming industries include the automotive, mining, construction, energy, and infrastructure sectors and jointly contribute 15 percent of the total of South

Africa’s GDP and employ more than 8 million people.

Through developing their own intellectual property in the areas of custom engineer-ing mining solutions, pressure vessels and modular solutions, Efficient Engineering

continues to diversify its business even further. The company has gone from purely mechani-cal design and manufacture, to including electri-cal design, and full fit out and testing of modular power control, electro houses and generator sets. Efficient Power, which was launched 18 months ago, has since turned over more than R100 million.

“We offer first to market, tailor made solutions to our clients through the expertise of our management team which has more than 200 years’ cumulative experience, in harnessing contemporary machin-ery and industry leading manufacturing processes.

“This has led to our robust growth and has seen us evolve from a respected family business to becom-ing the preferred supplier for numerous blue chip original equipment manufacturers in the local and international mining, material handling, oil and gas, satellite communication and radio astronomy, petro-chemical as well as engineering industries. Further, we continue to add to our diverse portfolio through

acquisitions such as that of Trotech, a division re-cently gained through the business rescue process.”Trotech, now known as Efficient Trotech, offers spe-cialist services in the field of engineering, design, manufacture and installation of bulk storage tanks, pressure vessels, heat exchangers, reactors, air receivers and fired heaters to the petrochemical, mining and minerals industry, as well as to the pulp and paper sectors. It is an exciting addition to Efficient Engineer-ing’s site which currently boasts a total manufacturing surface area of 21,600m2, fully equipped to undertake any engineering job, regardless of its size or complexity. At Efficient Engineering, equipment is fabricated to world class standards by a hand-picked team of production staff, many of whom are highly skilled artisans and metalworkers. This is essen-tial to maintaining the requirements that allow the company to retain its ISO 9001:2008 certifica-tion year after year. The company is also ISO 3834 certified as well as OHSAS 1801:2007 compliant. A benchmark audit conducted by the United


Nations Industrial Development Organisation’s (UNIDO) Subcon-tracting Partnership Exchange (SPX) programme resulted in an outstanding outcome. Under the category of Overall Performance and Practices Matrix, Efficient En-gineering was placed in the “World Class” quadrant, along with only a few other international group com-panies operating in the same league. Also, the prestigious SAISC Steel Awards recognised Efficient Engineer-ing, its partners and client as Overall Winners this year for their work on the SKA Africa Radio Antenna Posi-tioner project. The judges said that this project ‘radiates excellence not only in the use of structural steel but in every aspect of its structure and purpose.’ “This is testament to our commit-ment to being a partner of choice to our clients as well as good corporate citizens by contributing towards the growth of the economy through world class solutions that bench-mark South Africa as the global in-dustry standard,” concludes Hartley. Efficient EngineeringGraham HartleyTel: (011) 928-4800www.efficient.co.za

A Survival Guide in Times of A Water CrisisThe South African agricultural industry, amongst many others world-wide, are in a state of panic. The recent draughts experienced in South Africa have been a scary reminder of just how dependent we are on our agricultural resources, and also highlighted how tremendously vulnerable these resources can be. Water shortages not only within South Africa, but on the continent at large have caused major detri-mental economic knock-on effects and this eventually impacts every citizen directly. One could blame it on bad resource Governance, in-efficient infrastructures, Global warming, etc. The truth remains that at the end of the day, you have to ensure that your farming business survives, and that is only possible with one liquid gold – WATER.

The recent draughts have had a harsh effect on our farmers, and they are in desperate need of securing better backup facilities for the fu-ture.

How are you optimizing on your water supply?

If you have a limited water supply, you need to optimize your usage. Getting through a drought is a combination of having enough water stored and utilizing your water supply in the most efficient and spar-ing way possible. Ensure that your irrigation system is not over-de-signed and that you are not overusing your water. Without a continu-ous water source, you need to consider storage. When planning your storage, ensure that you optimize its purpose. This may be to enlarge the storage volume, and where possible cover it to avoid excess evap-oration. Eradicating leakages is vital, as large volumes of water are lost over time. Once you have storage, optimize and extend the time of your water availability.

We at Elsumo, supply energy efficient water-supply equipment, com-bined with over 100 years of expertise. With our technical advice and guidance, you’ll soon be headed in the right direction of making the most of your valuable resource, and survive it through the worst of times.

“Reduction in energy consumption does not require us to spend more money, it requires a change in our perception on how we live with and use power” B.Geiger, Elsumo.

For any questions and/or advice on implementing a reliable and sustainable water system, please visit our website at www.elsumo.co or call us at one of our branches (Cpt) 021 875 5781 (Jhb) 021 452 4981

http://www.efficient.co.za

http://www.elsumo.co


The agreement gives Tectra Automation a foothold in the sub-Saharan Africa process market, and facil-itates the expansion of the company’s Pneumatics Division. Essentially, in addition to its pneumatic and

vacuum products, technology and solutions, the division adds process market products as a third leg to its offering. It also puts the company in a position to bring customers from the oil & gas industry into the fold.

“We have had our growth strategy in place for some time now,” explains Malan Bosman, Product Manager, Pneumat-ics, Tectra Automation. “When OMAL began the process of withdrawing its South African office from the country, we took the opportunity to enter into an agreement with the Italian head office. Their product range quality is in-line with Tectra Automation’s quality offering, and the addition of this range enhances our overall solution offering.”

The process industry valves and actuators, now a part of the Tectra Automation’s process market products, comprise pneumatic scotch yoke actuators, electrical actuators, co-ax-ial valves, angle seat valves, butterfly valves and ball valves.

“It is a win-win agreement for both parties,” he Bosman points out. “OMAL will benefit from Hytec’s South African

Tectra Automation Gains Entry To Oil & Gas Valve Process Market

Tectra Automation entered into a sole distribution agreement with Italy-based

process valve and actuator manufacturer OMAL® Automation. In terms of the

agreement, Tectra Automation stocks and distributes OMAL’s entire range of oil &

gas industry-certified valves and actuators throughout South Africa and sub-Saharan

Africa.

Shake on it! Pictured at the conclusion of the agreement with OMAL® in Italy are OMAL S.p.A Sales Director Piergiorgio Cittadini (left) and Tecra Automation’s Pneumatic Product Manager Malan Bosman

and sub-Saharan African footprint, as well the Group’s es-tablished African distribution channels.” While there are smaller established OMAL distributors in the country, Tectra Automation’s appointment as sole distributor for the region means each of them will now source their OMAL products from Tectra Automation. As Tectra Automation now holds comprehensive stock of all OMAL valves and actuators, the smaller distributors will benefit from fast order turn-around times.

Bosman and former OMAL South Africa sales representative Marno Gloy, who has taken up a similar position with Tectra Automation, underwent a week’s product training at OMAL offices in Italy. “The transition has been seamless,” Bosman concludes, “and for the smaller distributors and established South African and African OMAL customers there was no lapse in service or stock delivery.”

OMAL Automation is one of four OEMs internationally that have certification to manufacture valves and actuators for the oil & gas industry.

Tectra Automation, Malan BosmanTel: 011 974 9400, [email protected]

Effective 1 November 2015, Tectra Automation stocks and distributes OMAL’s entire range of oil & gas industry-certified valves and actu-ators throughout South Africa and sub-Saharan Africa. Pictured, a sample of OMAL process valves


http://www.hytecgroup.co.za


Air Valves

(Vacuum release valve)

Air valves in pipeline systems serve two primary func-tions. The first is the release of accumulated air that comes out of solution within a pressurized pipeline. This air will result in bubble formation, which will gather at localized high points along the pipeline profile. This air accumulation will occur when the bubble’s buoyancy is greater than the energy to convey the bubble with the liquid. The air valve used to release this free air is known as an air release valve.

Pressure Type Size Pressure Rating (or imperial Equivalent)

% Local Content per unit

Low Pressure 50 -300 mm PN10 - PN25 70%

High Pressure 50 -300 mm PN10 - PN40 70%

Ball Valves

(Spherical Valves, Rotary Valves)

A ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball (called a “floating ball”) to control flow through it. It is open when the ball’s hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle. The handle lies flat in alignment with the flow when open, and is perpendicular to it when closed, making for easy visual confirmation of the valve’s status.



Low Pressure 20mm - 300 mm PN10 - PN25 70%

High Pressure 20mm - 600 mm Class 150 - 4500 Matric PN25 - PN 450

70%

VALVE GUIDE


Butterfly Valves

Rotating Disk Valves, rotary Control Valve,

Quarter Turn Gate Valve)

A butterfly valve is a valve which can be used for iso-lating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe; passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, so apressure drop is always induced in the flow, regardless of valve position





70%

VALVE GUIDE


www.apepumps.co.za


Check Valves

(Non-Return Valve, reflux Valve, Tilting Disk Valve, Double Door, Mu.ti Door, Swing

Check)

A check valve, is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.





70%

Control Valves

(Globe Control Valve, Piston Type Control Valve)

Control valves are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a “set-point” to a “process variable” whose value is provided by sensors that monitor changes in such conditions. Control Valve is also termed as the Final Control Element.



Low Pressure 25 - 600 mm PN10 - PN25 70%

High Pressure 25 - 600 mm Class 150 - 4500Matric PN25 - PN750

70%

VALVE GUIDE


Diaphragm Valves

(Slurry Valve or Saunders Valve)

Diaphragm valves (or membrane valves) consists of a valve body with two or more ports, a diaphragm, and a “weir or saddle” or seat upon which the diaphragm closes the valve. The valve is constructed from either plastic or metal.




70YEARS

44 Harry Str., Robertsham, Johannesburg, South AfricaP.O. Box 1122, Southdale, 2135Tel. (011) 433 3968 Fax (011) 433 3623 UVC Fax (011) 433 9107Website: www.uvc.co.zae-mail: [email protected]

70YEARS

44 Harry Str., Robertsham, Johannesburg, South AfricaP.O. Box 1122, Southdale, 2135Tel. (011) 433 3968 Fax (011) 433 3623 UVC Fax (011) 433 9107Website: www.uvc.co.zae-mail: [email protected]

VALVE GUIDE

http://www.uvc.co.za

http://www.uvc.co.za



Fire Hydrants

(Underground) Fire deluge Valve

A fire hydrant is a connection point by which firefight-ers can tap into a water supply. It is a component of active fire protection.



Low Pressure 65 mm inlet PN16 70%

Gate Valves

(RSVs, Wedge Gates, Slice Valves, Paral-lel Slides, Penstocks, Bonnet Gates, Scour

Valves)

A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel.




High Pressure 80mm - 1800 mm Matric PN25 - PN 100 70%

VALVE GUIDE


Knife Gate Valves


Knife gate valves were originally designed for the pulp and paper industry. Stringy pulp would impinge between the wedge and seat of a normal gate valve and prevent flow shut-off




VALVE GUIDE

KNIFE GATE VALVEDUAL‘s Knife Gate Valve is built with a cast SG Iron GR. 42 or fabricated body and features a heavy-duty stainless steel blade. Removable sleeves on either side of the blade provide a bi-directional bubble tight seal, with no metal parts in contact with the Dual’s Knife Gate Valves.

Tel : +27 11 422 4326/7Fax: +27 11 421-7842

Email: [email protected]: www.dualvalves.com

WE MANUFACTURE THE FOLLOWING KNIFE GATE

VALVES

Urethane Lined Slurry Knife Gate Valve (DULSKG)

Wafer Slurry Knife Gate Valve (DWSKG)

Slurry Knife Gate Valve (DSKG)

Dual High Pressure Slurry Knife Gate Valve (DHPSKG)

Untitled-2.indd 2 4/11/2016 1:16:22 PM




Manual Actuator

(Gearboxes)

Manual handwheel actuators are used in applications that require a throttling type of control valve that can be manually operated and set. Capable of giving precise manual throttling control, these actuators can be used on nearly all standard globe-style or angle-style valve body assemblies. A travel indicator on the actuator yoke can provide a visual indication of valve plug position.



Low Pressure -200 000nm torque N/A 70%

Plug Valves

(Excluding expanding plug valves) ( Double Block & Bleed Valve)

Plug valves are valves with cylindrical or conically tapered “plugs” which can be rotated inside the valve body to control flow through the valve. The plugs in plug valves have one or more hollow passageways going sideways through the plug, so that fluid can flow through the plug when the valve is open. Plug valves are simple and often economical.



Low Pressure 20-600mm PN10 - PN 26 70%

High Pressure 20-600mm pn25 - PN100 70%

VALVE GUIDE


Pinch Valves

(Slurry Valve)

Pinch valves are suitable for handling slurries and solids in suspension, avoiding contact with the valve mech-anism and any contamination towards or from the environment.



Low Pressure 50 - 800 mm PN10 - PN40 70%

VALVE GUIDE

DUAL‘s Pinch Valve consists of a tough, but flexible full bore sleeve, which forms part of the pipeline. The valve is closed mechanically via movement of the Pinch Bars located on opposite sides of the sleeve. The core of the Dual Pinch Valve is the sleeve — this sleeve is reinforced with high-strength fabric.The valves are well suited for on/off and throttling control applications where scale build up is a problem.We manufacture three types – Dual Straight Through Pinch Valve (DSTPV), Dual Pinch Valve Enclosed (DPVE), then the Dual Pinch Valve Open (DPVO).

DUAL‘s Pinch Valve

Tel : +27 11 422 4326/7 Fax: +27 11 421-7842Email: [email protected]

Web: www.dualvalves.com

Untitled-2.indd 1 4/11/2016 1:24:15 PM




Pneumatic Actuators - Spring return

(Vein type, Linear Type, Scotch Yolk Type, Rotary Type, Double Crank Type, Rack &

Pinion Type)

Pneumatic actuators utilize compressed air to gener-ate the operating energy. These actuators are quick to respond, but are not ideal for environments under high pressures, as gas is compressible. Pneumatic actuators can be either spring return or double acting.

Spring Return – Actuators in a spring return configu-ration have air/liquid supplied to only one side of the piston, and the energy to move the mechanisms comes from a spring on the opposite side. This configuration uses the air/liquid as energy to open or close the valve, while the spring acts to affect the opposite motion.



Low Pressure - 215 000nm torque N/A 70%

Pneumatic Actuators - Double acting

(Vein type, Linear Type, Scotch Yolk Type, Rotary Type, Double Crank Type, Rack &

Pinion Type)

Pneumatic actuators utilize compressed air to gener-ate the operating energy. These actuators are quick to respond, but are not ideal for environments under high pressures, as gas is compressible. Pneumatic actuators can be either spring return or double acting.

Double Acting – Actuators in a double acting configura-tion have air/liquid supplied to both sides of the piston, with one side being higher pressure which achieves the movement required to actuate the valve. This configura-tion uses the air/liquid as energy to both open and close the valve.



Low Pressure -392 000nm torque N/A 70%

VALVE GUIDE


Pressure Reducing Valve (PRV)

(Self-Regualting Valve)

Pressure Regulating Valve (PRV) automatically reduces a higher inlet pressure to a steady lower downstream pressure, regardless of changing flow rate and/or varying inlet pressure. PRVs are installed in water dis-tribution systems throughout the world and are know for their superior performance, reliability and long service life.



Low Pressure Full Range Full Range 70%

OPTIMISED FOR ENERGY EFFICIENT PUMPING

GRUNDFOS (Pty) LTD16 Lascelles RoadMeadowbrook Ext 13. Germiston 1609Phone: (+27) 10 248 6000www.grundfos.co.za

General advert Pump and Valves 15.indd 1 2015-12-03 04:25:12 PM

VALVE GUIDE

http://www.grundfos.co.za


Safety Valve

(Pressure Valve or Vacuum Valve)

A safety valve is a valve which has the function of increasing the safety of a thermal-hydraulics plant. An example of safety valve could be a pressure safety valve (PSV), i.e. a pressure relief valve (PRV) which automat-ically releases a substance from aboiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits. Also pilot-operated relief valves could have the function of safety valves.



Low Pressure 15mm - 32 mm PN16 70%

Sleeve Valve

(Fixed Cone Valves, Discharge Valves, Scour Valves, Howell Bunger Valves, Energy Dissi-

pating Valves)

The sleeve valve is a type of valve mechanism for piston engines, distinct from the usual poppet valve. Sleeve valve engines saw use in a number of pre-World War II luxury cars and in the United States in the Wil-lys-Knight car and light truck. They subsequently fell from use due to advances in poppet-valve technolo-gy, including sodium cooling, and the Knight system double sleeve engine’s tendency to burn a lot of lubricat-ing oil or to seize due to lack of it.



Low Pressure Full Range PN10 - PN25 70%

VALVE GUIDE


Taps, Cocks


Taps are normally connected to the water supply by means of a “swivel tap connector”, which is attached to the end of the water pipe using a soldered or com-pression fitting, and has a large nut to screw onto the threaded “tail” of the tap, which hangs down under-neath the bath, basin or sink. A fibre washer (which expands when wet, aiding the seal) is used between the connector and the tap tail. Tap tails are normally 1/2” in diameter for sinks and 3/4” for baths, although con-tinental Europe sometimes uses a 3/8” (still imperial) size. The same connection method is used for a ball-cock.

The term tap is widely used to describe the valve used to dispense draft beer from a keg, whether gravity feed or pressurized.



Low Pressure Full Range N/A 70%

Since 1989 Gunric Valves Manufacturing (Pty) Ltd, has been at the forefront of triple eccentric butterfly valve design. Our high quality valves are effectively used in the water, oil, process, mining, power generation, petrochemical, gas, sugar and steel refinery industries worldwide.

Engineered for strength and durability, Gunric Valves endure arduous conditions and operate under extreme pressures and temperatures.

Practical Expertise | Cutting Edge Technology | Service ExcellenceTel: +27 (0) 11 474 6180/4 www.gunric.com [email protected]

Untitled-1 1 2016/03/17 1:20 PM

13 Engwena Road, Sebenza, Edenvale, 1610, South Africa Tel: +27 11 [email protected] www.franklin-electric.com

Branches: Bloemfontein: +27 51 434-1565, Cape Town: +27 21 949-5458, Durban: +27 31 700-4160Depot: Port Elizabeth: +27 41 487-2866, Export Division: +27 11 723-6500

Franklin Electric Botswana (Pty) Ltd: +267 397-4926Franklin Electric Zambia: +260-966-014-144, +260-966-303-019

Franklin Electric is the leading manufacturer of world-class pumping system solutions providing the highest quality, availability, service, innovation and value-for-money in the industry. Backed by unsurpassed expertise throughout Africa, these leading brands are ideal for various pumping applications.

World-class pumping system solutions

corporate 297x210.indd 1 2014/07/29 3:10 PM

VALVE GUIDE

http://www.gunric.com



13 Engwena Road, Sebenza, Edenvale, 1610, South Africa Tel: +27 11 [email protected] www.franklin-electric.com

Branches: Bloemfontein: +27 51 434-1565, Cape Town: +27 21 949-5458, Durban: +27 31 700-4160Depot: Port Elizabeth: +27 41 487-2866, Export Division: +27 11 723-6500

Franklin Electric Botswana (Pty) Ltd: +267 397-4926Franklin Electric Zambia: +260-966-014-144, +260-966-303-019

Franklin Electric is the leading manufacturer of world-class pumping system solutions providing the highest quality, availability, service, innovation and value-for-money in the industry. Backed by unsurpassed expertise throughout Africa, these leading brands are ideal for various pumping applications.

World-class pumping system solutions

corporate 297x210.indd 1 2014/07/29 3:10 PM


http://www.franklin-electric.com


www.etanorm.com

www.ksbpumps.co.za

Documents

Pumps and Valves Africa Q1 - 2016