Degassing Vacuum Pumps & Systems to Optimize Production

Lean on Us for Your Vacuum Degassing Process Requirements

Our systems provide a variety of eco-friendly and reliable solutions that optimize production in degassing vacuum applications. Do you want to find the vacuum technology that will help you optimize your process? Then click the cards below to explore our product offering.

Our Offering of Degassing Vacuum Pumps & Systems

Dry Vacuum Pumps & Systems

What is Vacuum Degassing?

Degassing is an important chemical and pharmaceutical application. A vacuum is required for removing dissolved or trapped gasses from liquids and solutions in preparation for further processing such as distillation, deodorization and extrusion. Degassing helps to prevent cross contamination, improves product physical characteristics, reduce or prevent corrosion, shortens processing cycles and reduce capital cost for low pressure processes.

It is a process carried out on liquids to:

  • Preparation for further processing, (distillation, deodorization); CDP and industrial pump applications
  • Avoid cross contamination, (solvents); CDP application if solvents flammable
  • Improve a physical characteristics, (transformer oil, steel); Mostly industrial pumps but some CDP applications
  • Remove air from polymers or resins, (before extruding or casting); CDP and industrial pump applications
  • Reduce or avoid corrosion, (boiler feed water); industrial pump application
  • Remove oxygen from pastes; mostly industrial application; a few CDP applications

Proven Performance

NASH systems are the premier choice for degassing vacuum applications in drug production. Our safe and reliable pumps help eliminate gas bubbles that can interfere with heat transfer and cause corrosion.  Equipped with cool running liquid ring technology, they can handle moist and explosive gas streams.

How Degassing Vacuum Pump Work

  • Degassing of a liquid is achieved by exposing the largest possible surface area of the liquid to a vacuum or low pressure environment.
  • Typical CDP vacuum ranges are 50 to 0.01 mbar, (40 – 0.0075 Torr)
  • Vacuum degassing can greatly reduce capital costs in low pressure processes. For example, degassing 1 kg h-1 of air at 50 mbar and 50 oC, say, requires only 19 m3h-1 of pumping capacity to pump the air alone. The same 1 kg h-1 of air at 0.1 mbar and 50 oC requires 9,264 m3h-1. This is without considering that the air will also be saturated with the condensable vapours which is an additional load to the vacuum system. This is one reason that there is always a degassing step at relatively high pressures before the main deodorization process at low pressures in fatty acid deodorization and other low pressure processes such as molecular and short path distillation.


Benefits of Liquid Ring Pumps

  • Process compatible seal liquid 
  • Low maintenance, high reliability 
  • Wear-free performance - no metal to metal contact 
  • Handle carryover and moist gas streams 
  • ATEX versions available 

Learn More About Our Liquid Ring Technology

Degassing Vacuum Pump Solutions from Nash
NASH Vectra XL Liquid Ring Vacuum Pump & Compressor for Degassing Vacuum Applications

Clean & Oil-Free Vacuum Systems

NASH dry systems deliver dry, clean, flexible, and safe vacuum solutions. They are engineered for rigorous, non-stop demands of the harsh industrial environments of the pharmaceutical and fine chemicals industries. Our dry vacuum pumps & systems are some of the most reliable and efficient solutions on the market.

The dry and contact-free operation requires no lubrication in the pumping chamber. This allows dry pumps to operate at high temperatures. Without condensation inside a dry pump, there is no corrosion, polymerization or contamination.

Dry operation eliminates the risk of the process gas reacting with any liquids or lubricants. It also ensures that corrosion does not occur inside the process chamber. 


Benefits of Dry Technology

  No contamination of process streams
  Deep vacuum, (to 10-3 mbarA with mechanical boosters), and flexible operation
  Capacities not limited by cooling water temperatures
•  No effluent or pollution generation
  Pump explosive gases safely with ATEX-certified systems
  Immediate solvent recovery at the pump exhaust
  Easy service
•  Lower total cost of ownership from lower utility, service & maintenance costs 



Learn More About Our Dry Technology

Dry Vacuum for Degassing Vacuum Pump Solutions from Nash
NASH Dry-Vacuum Pumps for Degassing Vacuum Applications

Optimum Efficiency

Our steam and air jet ejectors are engineered for optimum efficiency. They maintain their ability to handle large volumes at very high vacuum levels. With no moving parts, steam and air ejectors deliver reliable performance, simple operation with a low capital cost.

Benefits of Booster Pump & Ejector Systems

  • Low capital investment
  • Rapid payback
  • Simple operation
  • Reliable performance
  • Customizable system configuration that reduces greenhouse gas emissions and steam consumption

Learn More About Our Ejector Technology

Degassing Vacuum Pump Solutions from Nash
NASH Vacuum Booster Pump & Ejector Systems for Degassing Vacuum Applications

Degassing Vacuum Applications

Our product portfolio consists of a complete range of engineered systems centred around reliable vacuum technologies. NASH provides tailor-made solutions for the following degassing applications:

  • The removal of CO2 and other impurities in the production of purified water
  • The removal of unwanted gasses to improve drugs and fine chemicals quality.
  • The removal of gasses in the production of gelatin capsules, plastics, resins, glues, adhesives and pastes.

Degassing is not the most common application for chemical dry pumps, (CDP), although there are some important niche applications, including degassing of:

  • Extruders (for production & fabrication of plastics)
  • Fatty acid deodorization
  • Resins
  • Paints and polymers
  • Glues and adhesives
  • Glycols and glycol mixtures
  • Synthetic fluids such as ester amides and other esters, silicone oils, fluorocarbon oils, (Fomblin)
  • Transformer and switchgear oils
  • Turbine lubrication and seal oils
  • Hydrocarbon oils in general
Discover more about degassing vacuum applications by clicking the cards below.

Proficient & Economical Systems

Each degassing vacuum pump & system is designed to meet our customer's specific requirements.

For over 100 years, NASH systems have been providing efficient and economically sound solutions. We offer our customers total peace of mind and cost savings.

To design system that meets your degassing vacuum process requirements, you will need the following information: 

NASH Systems for Pharmaceutical Applications
NASH systems for Pharmaceutical applications

  Gases and vapours to be removed

  Mass or volumetric flow rate of gases and vapours to be removed

  Required system pressure 

  Operating temperature

  Pumpdown time to reach the desired pressure

  System volume

  Utility specifications and unit costs


Quality & Sustainable Solutions 

Nash is committed to providing sustainable solutions. We help your company comply with environmental regulations while lowering the total cost of ownership. Our products & systems reduce resource consumption and emissions while operating reliably with minimal maintenance requirements. Together we build more sustainable and profitable plants..

ISO Certification

To provide quality, sustainable solutions, our manufacturing & service facilities are ISO 9001, ISO 14001, and OHSAS 18001 certified.