Brand

NASH Liquid Ring Vacuum Pumps

Liquid ring vacuum pumps and compressors for wet, hot and contaminated process gases.

About the brand

About NASH

NASH liquid ring vacuum pumps handle the gases that destroy a dry pump. The liquid ring absorbs condensate, dust and solvent vapour instead of trapping them in the compression space, and because there is no metal-to-metal contact in that space, soft solids, sludge and chemicals pass through and are washed out with the discharge.

Compression is close to isothermal, so discharge temperatures stay low and the machine is not damaged by hot gas carry-over. The pump runs cool and quiet, not above 85 dBA, and it can run continuously at any vacuum level from 29 inches of mercury to atmospheric pressure.

The single moving part is the rotor, carried on a shaft supported by bearings designed for a long continuous service life. There is no oil change, no filter, no sump and no condenser, which keeps the machine room clean and removes the oil disposal route entirely.

Product ranges

NASH models we supply

Every range below is held with selection support and spare parts. Send us the duty point and we will confirm the model.

2BV2

Direct coupled, gas capacity up to 120 m3/h, working fluid saving up to 50%.

2BV3

Process vacuum where the gas is wet, hot or contaminated.

2BV5

Integrated unit for continuous process vacuum on contaminated streams.

2BV7

Larger direct coupled frame for higher vacuum demand.