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Liquid Ring Compressor Range

Low Pressure

Medium Pressure

High Pressure

Proven Performance & Reliability

Nash liquid ring compressors have the greatest performance range worldwide. Our compressors work on discharge pressures up to 200 PSIG (15 bar abs.) with a suction capacity of 8,800 CFM (1,500 m³/h) or 9,400 CFM (16,000 m³/h). Thus, compressing gas to 30 PSIG (2 bar abs.) depending on the machine and application.

Compressor Performance Chart

Advantages Of Liquid Ring Compressors

NASH liquid ring compressors require minimal care and low maintenance. These compressors reduce power and operating costs by handling higher capacities with less energy. Our liquid ring compressors provide the following features and benefits:

  • Ability to handle carryover resulting in minimal process problems and an increase in uptime; intended for severe applications 
  • The long design life of 40+ years that offers the highest reliability 
  • No internal lubrication required, which means less maintenance and less downtime 
  • No metal-to-metal contact and constant wear-free performance 
  • Cool running, minimal temperature rise between inlet and discharge that is ideal for explosive gases and vapor recovery applications
  • Only one moving part for simple and reliable operation

Low Pressure Liquid Ring Compressors

(Up to 30 PSIG or 2 bar abs.)

Low pressure liquid ring compressors deliver reliable, proven performance for wastewater treatment, digester gas compression, aeration, and many other applications and industries. With a discharge pressure up to 30 PSIG (2 bar abs.), Nash provides efficient, low-pressure compressors that require low maintenance. Alternate seal liquids can be used when water is not compatible with the process gas. 

Our low-pressure liquid ring compressors are available in stainless steel, ductile iron, and other optional materials.

Medium Pressure Liquid Ring Compressors

(Up to 75 PSIG or 6 bar abs.) 

Medium pressure liquid ring compressors deliver reliable, proven performance for demanding process applications including recovery and compression of hydrocarbons and the compression of hydrogen, chlorine and other process gases. 

With a discharge pressure up to 75 PSIG (6 bar abs.), Nash offers efficient, medium-pressure compressors with low maintenance requirements. Alternate seal liquids can be used when water is not compatible with the process gas.

Our medium-pressure liquid ring compressors are available in stainless steel, ductile iron, and other optional materials.

High Pressure Liquid Ring Compressors

(Over 75 PSIG or 6 bar abs.)

High pressure liquid ring compressors deliver reliable, proven performance for toxic, explosive, and corrosive gases in oil & gas, petrochemical and chemical applications including flare-gas recovery and vinyl chloride monomer (VCM) recovery.

With a discharge pressure over 75 PSIG (6 bar abs.), Nash offers powerful, high-pressure compressors with low maintenance requirements. Alternate seal liquids can be used when water is not compatible with the process gas.

Our high-pressure liquid ring compressors are available in stainless steel, cast iron, and other optional materials.

Liquid Ring Compressor Applications

NASH liquid ring compressors are the preferred solution and designed for harsh and demanding processes or any other type of wet, corrosive, dirty, or explosive gas including:

  • Flare gas recovery
  • Flare gas compression
  • Vinyl chloride monomer recovery (VCM)
  • Vent gas recovery
  • Vapor recovery 
  • Hydrogen compression
  • Oxygen/ozone compression
  • Wastewater treatment methane compression
  • Carbon dioxide compression
  • Waste gas compression, power plants
 

Chemical Applications

Inside A NASH Liquid Ring Compressor

The NASH compressor is simple with only one moving part that is a rugged, balanced rotor requiring no internal lubrication. A rotating ring of liquid compressant does what sliding vanes or pistons do in other compressors.

The liquid compressant is represented in the below model by the grid-patterned area. Curved rotor blades, shown in section, transmit power to keep liquid rotating.

The ring of liquid follows the inside of the round-shaped body. Each revolution, every rotor chamber fills with liquid, then partly empties.

While a chamber is going past the inlet port, the liquid is moving out. Air or gas is drawn into the chamber. When a chamber arrives at the discharge port, compressed air or gas escapes to the compressor discharge.


Liquid Ring Compressor

Highest Standards 

Nash is committed to the highest standards in production and safety. We have many ISO certificates, issued to our facilities worldwide and continue to improve our quality by optimizing internal processes. 

NASH compressors are certified to ATEX and other global industrial standards.

Efficient Solutions

Our vast compressor product line covers the greatest performance range of liquid ring compressors worldwide and is available as single and two stage compressors. By handling higher capacities with less energy, our compressors reduce power and operating costs.

Nash has a global network of service and support is always available to keep your system running for years. Backed by over 100 years of experience, Nash will provide the right compressor to suit your application needs. Need performance plus proven reliability? You need Nash.

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