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.

• 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.

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

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: 

•  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