HEPU Pumpen und Maschinen GmbH

Horizontal slurry pump for heavy requirements


Range of application

For pumping highly-abrasive suspensions with a high ratio of solids.

Chemical industry, mining of coal and metal ores, steel and smelting works, porous concrete works, gravel and sand industry, quartz mines, limestone, gypsum and laitance, etc.


The heaviest construction of the overall pump structure. The wall strengths of all pump parts like casing and wear plates – suction and pressure side and of the impeller – are strongly over dimensioned. All fitting surfaces are mechanically-processed.
Thus the pump achieves high efficiency and high performance with low operating costs. Through the simple and well thought-out conceptual design, all wear parts are interchanged in the shortest amount of time and thereby achieve minimal periods of standstill.

Operating data

Q = bis 2800 m3h ( ~ 700 l/s)
H = bis 95 m Fl. S.

Pressure sockets

DN 50 up to DN 250


The strongly-dimensioned pump shaft and the lubricated cylindrical and spherical roller bearings are theoretically constructed for approx. 100,000 hours of operation. The entire bearing housing with shaft can be completely interchanged as a unit. The bearing mount can be adjusted axially with the shaft and impeller, and thus an optimisation of the suction-side opening can be achieved.

Stuffing box seal

The specially-conceived HEPU shaft seal guarantees a very high durability.

Floating seal

The floating gasket is used wherever only low quantities of sealing water may enter the medium to be pumped.

Mechanical seal

Here both simple and double-action mechanical seals of all brands are available.

Abrasion materials

  • Nihard 4 - Special
  • Chromium steel 1.4138
  • Cr-Ni-Stahl 1.4410
  • GGG 40 bis GGG 100
  • GG 25
  • Polyurethane PU
  • Other materials on request


Finish-coat according to RAL 3000

Performance diagram


Date: March 2007, technical changes reserved.

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HEPU GmbH • Hohewardstrasse 353 • D-45699 Herten • Phone: +049 (0) 23 66 / 3 60 57 -59 • Fax: +049 (0) 23 66 / 8 79 19