Proven Liquid Ring Vacuum Pump Performance in Demanding Processes
NASH liquid ring vacuum pumps are a reliable, durable choice when your process is hard on equipment. Nash pioneered this liquid ring vacuum pump design at the turn of the 20th century—and it’s remained an industry benchmark ever since.
When you’re buying a Vacuum Pump, you’re not just buying hardware—you’re buying uptime. Through ongoing innovation, product research, and development, Nash continues to deliver liquid ring pumps and upgrades that stand up to demanding applications while helping reduce total cost of ownership.
Not sure which liquid ring vacuum pump fits your process conditions, gas load, and operating pressure?
Explore the NASH portfolio below to find the right match for your application.
Small Capacity
Liquid Ring Vacuum Pump Small Capacity, 2BV5 Monoblock
The 2BV5 is expertly designed to deliver benefits of an economical installation for plastics manufacturing and medical technologies.
Mag Drive Liquid Ring Vacuum Pump Small Capacity, 2BM5
NASH 2BM5 Mag Drive pumps and compressors provide reliable leak free performance for applications needing highest levels of safety.
Medium Capacity
Liquid Ring Vacuum Pump Medium Capacity, SC
Our SC pump and compressor series delivers proven performance with flexible installation options & reduced maintenance requirements
Liquid Ring Vacuum Pump Medium Capacity, 2BE1
NASH 2BE1 vacuum pump and compressor series offer cost-effective reliable solutions for almost all industrial vacuum applications.
Liquid Ring Vacuum Pump Medium Capacity, Vectra GL
NASH Vectra GL liquid ring vacuum pump and compressor series delivers optimum performance with unprecedented production efficiencies
Liquid Ring Vacuum Pump Medium Capacity, Vectra XL
NASH Vectra XL liquid ring vacuum pump & compressor series delivers optimum performance with unprecedented production efficiencies
Large Capacity
Liquid Ring Vacuum Pump Large Capacity, CL
Our CL liquid ring vacuum pump and compressor series delivers classic Nash performance with a broad range of suction volume vacuum & pressure.
Liquid Ring Vacuum Pump Large Capacity, 905
The NASH 905 series of liquid ring vacuum pumps and compressors provides superior reliability and performance in harsh applications.
Liquid Ring Vacuum Pump Large Capacity, 2BE4
NASH 2BE4 pump and compressor series is optimized to deliver a 6-8% efficiency improvement over the previous models. Request a quote.
Liquid Ring Vacuum Pump Large Capacity, P2620
The NASH P2620 liquid ring vacuum pump operates in demanding environments like paper, power, mining & chemical process.
Two Stage
Liquid Ring Vacuum Pump Two Stage, AT
Our popular NASH AT two stage liquid ring vacuum pump series provides reliable high vacuum performance for the power industry.
Liquid Ring Vacuum Pump Two Stage, TC
NASH TC two stage vacuum pumps offer highly reliable and efficient solutions for power chemical and petrochemical applications.
How Liquid Ring Vacuum Pump Technology Works
The working principle of a liquid ring pump is based around a pump body and an eccentric rotor. As the rotor spins, the seal liquid inside the pump forms a rotating "liquid ring" on the inner surface of the body. NASH liquid ring vacuum pumps feature three product sizes including small capacity, medium capacity, and large capacity liquid ring pumps.
Discover Related Documents
Discover our liquid ring vacuum pumps and download our latest case study below.
Frequently Asked Questions
A liquid ring vacuum pump is an industrial vacuum pump that uses a rotating liquid (typically water or another seal fluid) to create compression and vacuum.Inside the pump:
- An eccentric rotor spins within a casing
- The seal liquid forms a rotating ring
- This creates sealed compression chambers that move gas and generate vacuum