Liquid ring vacuum pumps
Medium air volume, 2BE1
Gas volumes from 60 to 12,300 ACFM (100 to 21,000 m3/h)
The NASH 2BE1 liquid ring vacuum pump and compressor series covers a wide range of suction volume, vacuum and pressure. Based on the proven, reliable flat disk liquid ring vacuum pump design, the 2BE1 is available in 23 models with high differential pressure capability and is ATEX certified. As a result, the 2BE1 is one of the world's more popular liquid ring pumps and can be used in virtually all industrial vacuum applications, including the chemical, pulp and paper and power generation industries.
Description
With decades of reliable performance, the 2BE1 liquid ring vacuum pump and compressor range continues to provide cost-effective, reliable vacuum solutions for virtually all industrial vacuum applications.The 2BE1 product line is available in 23 models covering a wide range of capacity sizes, and in materials of construction ranging from cast iron to stainless steel, as well as a combination of both.  
Rugged and low-maintenance based on the proven flat disk 2BE design
Patented in Germany in the early 1900s, Nash's flat disk liquid ring vacuum pump/compressor design has been supplied to thousands of plants worldwide, providing you with proven performance, reliability and peace of mind. With continuous innovation, Nash's patented design features the following:
-Discs with variable ports so pump performance is optimized over the entire operating range.
-Large differential pressure capability
-High liquid residue tolerance
-Large inspection ports for easy internal inspection
-Orifice allows complete pump evacuation when closed
Discharge pressure range of 50 psia (3.5 bar abs) when operating as a vacuum pump and compressor
Some applications require vacuum and compression in a process. Our liquid ring vacuum pumps and compressors can handle the gases in one pump instead of two separate machines - reducing costs and simplifying installation.
NASH Classic Model Pumps
With more than 110 years of experience building liquid ring vacuum pumps and compressors, we know how to design products that last. That's why we still manufacture classic liquid ring vacuum pumps and compressors such as the 2BE1, and they are still in operation at our factories around the world. Only the true classics made by UNIC are * performance tested and come with a factory warranty.
Technical Data
2BE1 Small Series

 Suction Flow: 60 to 1,800 ACFM (100 to 3,100 m3/h)
 vacuum range: to 1 inHgA (to 33 mbar abs.)
 Exhaust pressure range: 50 psia (3.5 bars abs.)
 Differential pressure: to 37.7 psi (to 2.1 bar)
 Shaft seal: stuffing box (standard)
Mechanical seals on request (single phase/double ended)
 Materials of construction: cast iron, stainless steel, combination of both
2BE1 Large Pump Series

 Suction Flow: 1,200 to 12,300 ACFM (2,000 to 21,000 m3/h)
 vacuum range: to 1 inHgA (to 33 mbar abs.)
 Exhaust pressure range: 30.5 psia (2.1 bars abs)
 Differential pressure: to 16 psi (to 1.1 bar)
 Shaft seal: stuffing box (standard)
Mechanical seals on request (single/double ended)
Materials of construction: cast iron, stainless steel, combination of both