pompy i systemy pompowe  

WH multistage rotodynamic pumps

WHA horizontal multistage pumps are designed for pumping water at temperatures of up to 140°C as well as liquid fuels and other liquids within the resistance of materials used for their construction.


  • Power industry – boiler feedwater, hot water condensate,
  • Industrial, pressure boosting and extinguishing systems,
  • Utility, municipal and drinking water systems,
  • Distillate, solvents fuels (including LPG) pumping stations,
  • Irrigation and snow making systems,
  • Filtration and reverse osmosis systems,
  • High pressure washing stands and washers.

Technical data:

Capacity up to 160 m3/h
Delivery head up to 700 m
Pumped liquid temperature up to +140oC
Suction flange DN 50 ... DN 100 mm
Discharge flange DN 40 ... DN 80 mm

Pump size Suction flange Discharge flange Q Hmax
  mm mm m3/h m
WHA.2 DN 50 DN 40 15-40 540
WHA.3 DN 65 DN 50 35-70 685
WHA.4 DN 80 DN 65 55-95 700
WHA.5 DN 100 DN 80 80-160 690

Operation fields

Materials used in WH pumps

Pump parts Material execution "d"
1 2 3 4 5
Suction casing ZL250 B101 400-15 200-400 G-X5CrNiMo19112
Discharge casing
Bearing housing ZL250
Stator housing B101
Impeller B101
Shaft 45 1H18N9T 2H13 45 H17N13M2T
Sleeves 2H13 2H13


  • WHA pumps are horizontal, rotodynamic pumps with multistage construction,
  • Discharge flange directed upwards, suction flange can be installed in 90° angle steps,
  • The first pump stage is equipped with a special impeller with increased anti-cavitation properties,
  • Pump impellers are sealed with replaceable wear rings,
  • Pump shaft is protected with protection sleeves and sealed with packing cord or mechanical face seals,
  • Axial forces are reduced by pressure relief holes,
  • High pressure in the discharge gland is reduced by special system of pressure throttling, which significantly reduces the seal load,
  • Materials execution: cast iron, bronze, cast steel.

WHS multistage self-priming rotodynamic pumps

WHS horizontal multistage pumps with self-priming member, are designed for pumping water at temperatures up to 70°C as well as liquid fuels and other liquids within the resistance of the materials used in their construction.

WHS pumps are special extension of the WHA pump design, with an additional circulating-vacuum member after last stage. This solution allows for sucking out of gas from the working space of the pump and suction installation without necessity of application of additional water priming systems.

WHG multistage self-priming rotodynamic pumps

Pumps of WHG type are horizontal, multistage pumps designed for pumping liquid fuels and other liquids in range of resistance of materials used for their construction. Entry impeller and self-priming member with increased anti-cavitation properties allow for self-acting suction of liquid.


  • High efficiency,
  • Good anti-cavitation properties,
  • Simple design,
  • Possibility of changing the angle of the suction port,
  • Application of shaft protection sleeves and replaceable wear rings.

Hydro-Vacuum S.A.
ul. Droga Jeziorna 8
86-303 Grudziądz
tel. 56 45 07 415
fax. 56 46 25 955
Copyright © Hydro-Vacuum S.A.

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