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Liquid Ring Vacuum Pump 

Small Capacity, 2AV1

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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Space-saving installation

When compared to conventional pumps, the 2AV1's monoblock design delivers the benefits of a simple, compact and economical installation. Since the pump and motor are integral and self supporting, there is no need for additional baseplates, couplings or guards, which add to the cost, complexity and overall size of the installation.

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 2AV1 can provide up to 20,000 hours of maintenance free operation.

Quiet operation

The NASH 2AV1 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: 15 to 340 ACFM (25 to 580 m3/h)

  • Vacuum Range: to 2.4 inHgA (to 80 mbar abs.)

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

  • Differential Pressure: 116 psi (8 bar abs.)

  • Shaft Seals: Mechanical Seals

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