Hit enter to search


Search the full range of products and services available here at Glaston with our handy search bar.

Get in touch

If you can’t find what you’re looking for then please get in touch on +44 (0)1695 51010 or email and one of our advisers will be happy to discuss your requirements and offer a solution.

Phone lines - 8:30-5pm, Mon - Fri 01695 51010
get in touch

Glaston Compressor Services Ltd leads the way in supply of Nitrogen Generators

Lancashire based Glaston Compressor Services is a UK leading supplier of Compressed Air Systems and Nitrogen Generators.  They have been supplying high performance, energy efficient Air Compressors for over 30 years to a range of industries including – Power Stations, Recycling, Automotive, Food, Nuclear Power and Aerospace.

Glaston supplies bespoke total solutions from initial consultation through to full installation and lifetime compressor maintenance.  Experts in the design, supply and installation of energy saving applications, their products include Compressed Air Applications, Compressed Air Systems, Nitrogen Generators, Vacuum Pumps and Cooling Water Systems.  In addition, they also offer bespoke controls that are designed and manufactured as part of their Compressor Services.  Glaston is an authorised UK distributor of HPC Kaeser Compressors.

Glaston is also fast becoming the industry’s first choice for Nitrogen Generator selection and installation.  They have built an enviable portfolio of customers covering a broad range of industry sectors.  Glaston provides cost effective, energy saving methods of generating nitrogen on-site, working closely with their customers they can specify innovative bespoke solutions.

Due to its versatility, nitrogen use is becoming increasingly popular in a number of industries. These industries include chemical, food & beverage, plastic moulding, and packaging to name a few. The key benefit of generating nitrogen on-site is cost savings; up to 40% savings can be made when compared to buying nitrogen cylinders. Glaston engineers are highly qualified and have extensive experience in the installation and maintenance of nitrogen generators.

At Glaston, the team of service engineers can arrange an initial consultation to help determine the recommended solution for your on-site nitrogen requirements. They will then offer professional, practical advice to ensure you are confident in your choice of nitrogen generation system.

Which type of Nitrogen Generator is suitable for you?

Dependent on purity, flow rate and a number of other considerations, there are many options when supplying nitrogen. The indicative optimal supply options for nitrogen generators are shown below.

Membrane Nitrogen Generators

Optiminal purity range: 90% to 99.0%
Optimal flow rate: 1-600 Nm³/h
Cost advantage over vendor-supplied liquid: up to 50%

The diagram shows a Membrane Separation module with its fibre bundle, and the permeation rate of various gases.

Membrane nitrogen separation became commercially available in the early 1980s. It is the most robust of the nitrogen separation technologies. Compared to Pressure Swing Adsorption (PSA) technology, membranes use more energy, but have lower maintenance costs. Membranes are best suited for purities up to approx. 99%, and nitrogen demand of up to around 600 Nm³/hr.

Oxygen and nitrogen in compressed air are separated by the relative speed of permeation through the side wall of hollow polymer fibres. Oxygen molecules permeate through the fibres faster than nitrogen molecules, enabling them to be selectively exhausted. Nitrogen gas purity increases as the flow proceeds down the fibres. Depending on the residence time in the membrane, nitrogen purity of better than 99.99% can be achieved. If you require higher purity levels, other separation technologies are more cost effective.

PSA Nitrogen Generators

Range Purity: 99% to 99.995%
Flow rate: 1-1000 Nm³/h
Cost advantage over vendor-supplied liquid: up to 50%

Pressure Swing Adsorption (PSA) is cost effective for on-site nitrogen generation at purities higher than 99% (purities as high as 99.995% are possible), and in high energy cost regions for lower purities down to 97%.

The air is separated by compression on a bed of carbon molecular sieve (CMS), which preferentially adsorbs the oxygen. At the same time, in a second drum of CMS, the pressure is lowered, thus releasing the adsorbed oxygen which is exhausted. This bed of CMS now denuded of oxygen is again ready for a further compression cycle of adsorption.

At Glaston, the team of engineers have expertise in the design, supply, and maintenance of nitrogen generators. For more information about their range of products and services, or for a bespoke quote please call 01695 51010 or email



Got a question?