Centrifugal cryogenic pumps GBS

Centrifugal stationary cryogenic pumps GBS are designed for liquid products pumping under a pressure of up to 28 bar. The design of the pumps provides protection from heat inleak.

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Peculiarities of GBS cryogenic pumps:

  1. Front opening of housing: easy and reliable replacement of mechanical seal without the need for readjustment of the run-out.
  2. Composite mechanical seal (4 times longer life time than carbon seals). For CO2 application: special high pressure mechanical seal; for a long life application - gas tight seal.
  3. Нigh hydraulic efficiency of pump impeller.
  4. Helical inducer allows low required NPSH. 
  5. Splash lubricated gearbox with oxygen compatible oil 
  6. Helicoidal gearwheels for low noise level.
  7. Pump support with 3 bearings: 2 for radial thrust and 1 for radial and axial thrust.

Heat inleak protection:

  • pump volute is connected to the electric motor by means of a spacer with four hollow connecting links;
  • hollow shaft minimizes heat transfer to the shaft;
  • thick plate with low thermal conductivity.

Optional equipment:

  • switch for differential pressure (protection against "dry" mode);
  • temperature probe during cooling;
  • leakage temperature detector;
  • gear and sealing purging;
  • fully assembled unit.
Applications stationary pump for liquid transfer
Liquids pumped oxygen, nitrogen, argon, carbon dioxide, liquefied natural gas (LNG), nitrous oxide, ethylene
Drive type gearbox
Design pressure up to 28 bar, up to 40 bar for carbon dioxide
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