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Liquid Ring Vacuum Pump 

Small Capacity, 2AV2

Capacity 15 to 340 ACFM (25 to 580 m3/h)

NASH 2AV1 Liquid Ring Vacuum Pumps are single stage units designed for continuous operation and used for generating vacuums or excess pressure. With capacity ranging from 15 to 340 ACFM (25 to 580 m3/h), the 2AV1 vacuum pump series is ideal for the extraction of dry and moist gases, mainly air and air/vapor mixtures in chemical, plastics, medical, food & beverage, and other general industrial processes.


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Material and motor choices 

If your application demands all stainless steel construction for added corrosion resistance and/or special motor requirements such as enclosures, voltage, and frequency the 2AV2 is the right choice for your application. The 2AV2 pumps are available in both cast iron and 316 stainless steel construction and the pedestal design accepts most C-Faced motors. 

Rugged and reliable 

We focused on durability and dependability when we developed these liquid-ring pumps. With a reinforced stainless steel shaft and sealed bearings, the 2AV2 can provide up to 20,000 hours of maintenance-free operation. 

Quiet operation 

The NASH 2AV2 is expertly designed and manufactured to be quiet and vibration free. With sound pressure levels of less than 75 dBA, it complies with the strictest noise standards, eliminating the need for additional sound attenuating devices.


Factory Service

Strategically located to provide support where and when you need it.



Built to our legendary standards using current designs and specifications. Fit and performance guaranteed.

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Field Service

Our team of NASH Certified Technicians are available to supplement your in-house maintenance operations.

Technical Data

  • Suction Capacity: 95 to 340 ACFM (160 to 580 m3/h)

  • Vacuum Range: to 1 inHgA (to 33 mbar abs.)

  • Discharge Pressure Range: to 19 psia (to 1.3 bar abs.)

  • Differential Pressure: 87 psi (6 bar abs.)

  • Shaft Seals: Single-acting self flushing or externally flushed mechanical seals, or double-acting mechanical seals with external flushing

  • Materials of Construction: Cast Iron, 316 Stainless Steel

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