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Liquid Ring Vacuum Pump 
Large Capacity, P2620

Capacity 14,100 to 22,400 ACFM (24,000 to 38,000 m3/h)

The NASH P2620 liquid ring vacuum pump model allows efficient operation over the entire vacuum range without the need to change the pump's internals. With the largest capacity in our portfolio, ranging from 14,100 to 22,400 ACFM (24,000 to 38,000 m3/hr), the P2620 is designed to operate in demanding environments such as paper, power, mining, and chemical process industries.


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Split Vacuum Capability

When a NASH P2620 vacuum pump is equipped with a center shroud, split vacuum operation up to 10 inHg (340 millibar) differential can be achieved. The advantage of this is significant, allowing usage of fewer vacuum pumps - which saves space and installation costs. 

Flexible Installation & Quiet Operation

The unique inlet configuration allows for both top and side inlet arrangements to accommodate low headroom installations. Bottom and side discharge connections offer flexibility to address installation space constraints. Large inspection ports allow easy access to pump internals for inspection and maintenance. 

P2620 pumps are amazingly quiet during operation. Sound levels of 72 to 85 dB(A) (measured at a distance of 3.3 ft (1 meter) from the source) have been recorded for even the largest of the pump models. 


Designed to operate in demanding environments

Designed to operate in demanding environments like the paper, power, mining, sugar, and chemical process industries, these pumps offer durability and reliability at a low cost of operation. The standard polyisoprene lining on the P2620 vacuum pump body resists aggressive process gases and liquids to provide exceptional corrosion resistance. The polyisoprene lining also consumes less energy than the equivalent unlined pump.


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: 14,100 to 22,400 ACFM (24,000 to 38,000 m3/h)

  • Vacuum Range: to 4.7 inHgA (to 160 mbar abs.)

  • Differential Pressure: to 22 psi (to 1.5 bar)

  • Shaft Seals: Stuffing Box (standard), Mechanical Seals (single acting/ double acting) on request

  • Materials of Construction: Cast Iron, Stainless steel, Stainless steel clad and epoxy coated components are available

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