HEPU Pumpen und Maschinen GmbH

Vertical slurry pump for heavy requirements, without packing


Range of application

Sump pump without packing for application with highly-abrasive suspensions with a high ratio of solids.

Chemical industry, sewage and waste water, water for cleaning in coal and ore preparation, sand and gravel extraction, sintered water, coke breeze water, concrete, brick, and clay industries, etc.


Heavy-weight pump construction, vertical construction, in dry and wet application, with open and closed impellers. Bearing support, bearing and E-motor are set up dry. The impeller can be optimally positioned by the adjustment equipment on the bearing mount. Two-piece housing made of GG-25 with the PU and Nihard construction.

All wear parts are individually changeable and interchangeable.

Operating data

Q = up to 1700 m3h
H = up to 70 m Fl. S.

Pressure sockets

DN 50 up to DN 250


Robust and over dimensioned standard shafts. Lubricated cylindrical and spherical roller bearings constructed for a life of 60,000 hours of operation. By dismantling the bearing shell on the bearing mount the entire unit, bearing with shaft, can be interchanged quickly and problem-free.

Shaft seal

The sump pump is constructed without packing seal. Shaft protection sleeve, packing gland, and sealing and lubrication water are omitted so that considerable costs for maintenance, repairs, and personnel are limited.

Abrasion materials

  • Nihard 4 - Special
  • Chromium steel 1.4138
  • Cr-Ni Steel 1.4410
  • GGG 40 to 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 | -58 | -59 • Fax: +049 (0) 23 66 / 8 79 19