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Liquid Ring Vacuum Pump 

Small Capacity, 2BV5

Capacity 65 to 350 ACFM (110 to 600 m3/h)

The NASH 2BV5 liquid ring vacuum pump series has been designed to provide superior performance for a wide array of applications. Innovative and economical, the high vacuum capability, extra water handling ability, and compact size combine to make an ideal machine for industries like plastics manufacturing and medical technologies.


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Combining quality construction with reliability

The simple construction and quality materials of the 2BV5 combine for an extremely reliable machine. Featuring a corrosion-free compression chamber that includes a stainless-steel body, shaft, and port plate, these pumps provide excellent resistance to corrosive and erosive media. What’s more, with the corrosion free materials, the one moving part (the rotor) is ensured to turn freely even after long periods of inactivity. 

Available for quick delivery worldwide

The 2BV5 is equipped with a very versatile motor that is ready to be installed nearly anywhere throughout the world. The motor includes wide voltage range capability, an IP55 enclosure and is suitable for 50/60 Hz service. It also conforms to international standards, including UL and CSA. 

Key Features

  • Compact, light integral pump and motor design

  • Corrosion resistant

  • Quiet operation

  • No need for additional baseplates, couplings or guards, which add to cost, complexity and overall size of the installation

  • Design conforms to ATEX 94/9 EC

  • Available in stock from most distribution centers and primary manufacturing locations


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: 65 to 350 ACFM (110 to 600 m3/h)

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

  • Discharge Pressure Range: to 33.3 psia (to 2.3 bar abs.)

  • Differential Pressure: to 19 psi (to 1.3 bar)

  • Shaft Seals: Single acting Mechanical Seal

  • Materials of Construction: Cast Iron/ Bronze, Stainless Steel

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