Liquid ring vacuum pump 904 series

lubricatedsingle-stagefor the chemical industry

Liquid Ring Vacuum Pump Large Capacity, 904 The NASH 904 replaced the popular NASH CL pump in the 1980's, and can still be found operating in plants around the globe today. Capacities of the 904 pumps range upward from about 2,700 ACFM at vacuum. These durable pumps can handle excess liquid carryover without any difficulty, even if it arrives as massive slugs. 904 pumps are found in many industries including paper, chemical, and mining. Engineered for Demanding Industrial Environments The NASH 904 series offers medium to large capacity, single stage vacuum pumps that are ideally matched to demanding industrial applications and harsh environments. These durable pumps handle excess liquid carryover, including massive slugs, with difficulty and are engineered to withstand demanding industrial applications. Reliable and Efficient with conical porting and rotor configuration Patented in 1932, Nash’s conical porting design allows the force of compression to counter the weight of the rotor and shaft to help minimize load on bearings during operation. With constant innovation, Nash’s patented design features: Option for lobe purge to minimize damage from erosion in duties with solids present High liquid carryover tolerance Side discharge to minimize the chance of flooded start Removable bearing brackets Performance test for all pumps