A multi-phase pump is a pump system created by combining a standard centrifugal pump and a liquid ring pump, mounting them on the same motor and shaft.

A centrifugal pump derives its essential performance from pumping the main fluid. When a gas bubble begins to form in the center of the centrifugal impeller, this bubble is expelled by the liquid ring impeller.

The pump has one suction line and two discharge lines: one main outlet for the centrifugal pump and the other for the air and foam discharge outlet of the liquid ring pump. The air/foam discharge outlet is usually reconnected to the suction chamber.

Technical Information

Flow Rate Q: Max. 400 m³/h
Pressing Height: Max. 30 m
Temperature: Max. 140°C
Inlet pressure: Max. 10 bars
Fluid viscosity: Max. 10 cP
Parts in contact with liquid: 316L stainless steel, etc.

Features

  • Electro-polished stainless steel AISI316 and better: high corrosion resistance.
  • High pump efficiency resulting in lower energy consumption.
  • Low NPSH levels: less risk of cavitation.
  • Monoblock construction: less floor space, easy installation and maintenance (no alignment required)
  • Self-regulating vacuum

Related Applications

  • GFP multi-phase pumps are typically used in the food industry for foamy liquids and gaseous (viscous) liquids.
  • It offers a solution for liquids that are difficult to pump with standard centrifugal pumps. For example, starch slurries, proteins.