Series NPK

Heavy-duty pumps made of highly wear-resistant casting material

areas of application

  • Chemical Industry

    Aggressive chemicals, Fertilisers, PO4, Foaming suspensions, Pigments, Sediments, soda, Separation, SO4, chloride, Waste recycling
  • Sugar industry

    Animal waste, Beet pulp, Biogas, fertiliser, Washing plants, Wastewater treatment plants
  • Tunnel construction and civil engineering

    Bentonite, cement batching, Chalk slurries, Cyclone feed, Excavator works (ports, rivers), Kaolin, clay, Micro-tunnel construction, Sand & gravel, Sand industry, Slate, marble, granite, Transport concrete, Vertical bores (land and sea)
  • Steel industry

    Blast furnaces, Hot rolling mills, Sinter and scale deposits
  • Processing & Mining

    Ceramic, glass cut-outs, Chamber filter press loading, Coal/ ore / phosphates / potash/ bauxite, Fe, Zn, Cu, Ti, Salt, Al, etc., Fibrous slurry, Filter press loading, Flotation and foam medium, Heavy mining slurries, Iron oxide production, Mill discharge and separation, Ore slurries, Slurry and sump pumps, Thickener underflows, Waste recycling
  • Energy Management

    Coal and coke processing, Condensate, Flue gas desulphurisation
  • Sand & Gravel

    Mineral processing, Water retention, Wet processing

The main applications for the metallic centrifugal pumps of the NPK series are cases with medium to high wear load.

By using selected material qualities, this type of pump can also be used for corrosive and abrasive medium with particles size of up to 100 mm.

Impeller, wear plates and pump housing are dimensioned according to the requirements and optimised to achieve the best possible service lives.

Even under the most difficult operating conditions, the NPK model series achieves the lowest lifecycle costs.

The NPK model series is comprised of single-stage centrifugal pumps with easily replaceable wear parts and adjustable suction gap. The pump housing and wear plates are braced across the case covers by means of tension rods.

The wear-resistant and corrosion-resistant HBN materials are a result of our continuous research and development activities.

  • HBN 440 – wear-resistant casting, Ni-Hard IV follower
  • HBN 450 – highly wear-resistant casting, hardness up to 650 HB
  • HBN 480 – corrosion-resistant casting, hardness up to 650 HB

Technical data

up to 4.600 m3/h
Förderhöhe, einstufig
up to 95 m.FI.S
up to 2.950 min-1
DN32 - DN500
Maximaler Betriebsdruck
10 - 16 Bar
Temperatur der Flüssigkeit
Korrosionsbeständigkeit bei PH
3 - 14