Netzsch Pumps set new industry standards

Progressive cavity pumps, an industry staple for several years, have been subject to a design and performance make-over by NETZSCH. Their new-technology NEMO M.Champ range has a unique construction with only nine major components, a reduction of over 70% compared to conventional pumps of this type. New features include a built-in reserve stator and maintenance-free drive chain, helping to set new standards for long-life and reliability.

Five pumps are available in the range, suitable for use with low to highly viscous fluids, even with solids inclusion, providing capacities up to 85m3/h (360 gpm), at pressures up to six bar (85 psi). With their ability to handle treated and untreated sludge, grease and oil emulsions, industrial effluent and even processed food products, the pumps are extremely versatile. As well as environmental and wastewater treatment applications, their liquids handling capabilities make them suitable for chemical, general engineering, processing, mining and quarrying uses, with many other applications as diverse as vegetable washing plants.

The NEMO M.Champ is a progressing cavity pump which offers good performance within a compact package. Pump capacity is proportional to rotational speed, with reversible flow direction. High suction and pressure capacities are combined with continuous low pulsation conveyance, independent of media pressure or viscosity. Maintenance and wear-free operation, with low life-cycle costs and ease of service also form part of the specification for these innovative products.

A robust and space-saving bevel geared drive is used to power the chromium plated rotor connected via a corrosion resistant flexible-rod drive chain. This rotating mechanism is devoid of rotary joints or wear parts and does not require lubrication. It can also be easily removed if required. The compact pump housing helps to prevent solids sedimentation and has diametrically opposed horizontal flanged ports for pipeline connection. One port is fitted with a blanking plate, and used for inspection or cleaning access. A wide range of electric motor speed, power and supply voltage variations can be specified to suit application requirements.

The patented stator section of the pump has a bonded elastomer lining of Nemolast which provides the progressing cavity movement of the conveyed media under the action of the rotor. These stators are also reversible, using a quick clamping system, to provide an integrated reserve stator for extended operational life. Optional elastomer linings are also available to suit a wide range of chemical or other aggressive media. Integrated gaskets and flow tapers at both ends ensure low NPSH values in both pumping directions. The stator clamping device also carries an information plate for pump maintenance and operational safety.

The pumps are designed for economy and maximum performance even with difficult fluids. Further information is available on request from: NETZSCH Pumps Limited, Unit 3 Middlemore Business Park, Middlemore Lane West, Aldridge, Walsall, West Midlands WS9 8BG

Telephone: 01922 453 433 Fax: 01922 458404

e-mail: sales@npu.netzsch.com

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