Liquid ring vacuum pumps
In a liquid ring vacuum pump, an impeller rotates eccentrically in a housing partially filled with liquid. Centrifugal force forms the liquid into a rotating ring that seals the spaces between the blades. Because the impeller sits off-centre, these spaces become larger and smaller again with every revolution: the gas is drawn in, compressed and discharged together with part of the liquid.
The operating fluid, usually water, absorbs the heat of compression and makes the pump insensitive to humid, dusty or condensing gases. This explains its widespread use in the chemical industry, in food and beverage production, in paper mills, power plants and in plastics extrusion. The ultimate pressure depends on the temperature of the operating fluid.
The shop lists 17 series of this type from Atlas Copco, Busch, Edwards and Elmo Rietschle. The tiles below lead to the individual series with their models and key data; matching spare parts and consumables can be requested directly.
Series: Liquid ring vacuum pumps
- Atlas CopcoAWC A series8 models · 25–350 m³/h
- Atlas CopcoAWC series9 models · 27–500 m³/h
- Atlas CopcoAWD A series8 models · 89–656 m³/h
- Atlas CopcoAWD series14 models · 106–4,500 m³/h
- Atlas CopcoAWL series11 models · 4,290–36,600 m³/h
- Atlas CopcoAWS series22 models · 168–26,000 m³/h
Atlas CopcoLRP VSD+ series3 models · 740–1,050 m³/h- BuschDOLPHIN series70 models · 25–16,160 m³/h
- EdwardsEHR/SHR series9 models · 190.8–4,500 m³/h
- EdwardsLR1A series12 models · 601.2–8,100 m³/h
- EdwardsLR1C series9 models · 27–500.4 m³/h
- EdwardsLR1D series12 models · 20–1,340 m³/h
Elmo RietschleL-BL2 series7 models- Elmo RietschleL-BV2 series4 models
- Elmo RietschleL-BV3 series1 model
- Elmo RietschleL-BV5 series5 models
- Elmo RietschleL-BV7 series3 models
