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The Nevis-5

Apex's Range of Ultra High Purity Nitrogen Generators. 

The Nevis Range is a flexible and expandable state-of-the-art product that simply produces nitrogen when you want it. 


Utilising Pressure Swing Adsorption technology the Apex Nevis series provides ideal performance, efficiency and reliability. High purity nitrogen is delivered as and when required.


All models in the range are mobile to allow easy repositioning and installation. The Nevis series provides flexibility to match your system requirements. We can customise the purity, flow rate and delivery pressure to suit your specifications.

Features and Benefits
  • Standard flow rates of up to 10litres/min 

  • Output pressure 5.4 Barg / 80psig

  • High purity Nitrogen up to 99.9995%

  • Medical grade tubing as standard

  • Stand-by mode

  • PSA technology

  • Easy installation

  • Simple and low cost maintenance

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How it works:


Air from an external source enters the generator via a 0.01-micron filter [1] that removes contaminants and bulk moisture via an integrated auto drain. When the control system assesses that more nitrogen is required, the solenoid valve [2] is opened and pressure is allowed to build in the column [4] containing Carbon Molecular Sieve (CMS) and a residue moisture catcher [3].This sieve adsorbs the oxygen and leaves the dry nitrogen free to flow through the non-return valve into the direction of the variable reservoir capacity (VRC) [7] Following on from this the Nitrogen is allowed to flow to the application via another 0.01-micron filter [8] and pressure and flow regulators [9].The trapped oxygen is meanwhile filtered out through the exhaust valves [6] 

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The Nevis series of High Purity Nitrogen generator is a range of discrete, efficient and

modular Nitrogen generators that produce ultra-high purity nitrogen only when you need it.

Most models in the series will fit under a workbench. All of the units in the range are built

on a modular design to allow the capacity to be expanded upon if required. As with most

of our products, there is the option for bespoke models which better fix your laboratories

needs, flow rates, purity levels, connection ports, integrated compressors and more are all

to be customised to best suit your requirements. 


Each high purity nitrogen generator in the series can be run from an external source of

compressed air or can be built with an integral compressor. Using an external air source

air will provide almost silent operation. An integral compressor allows the system to run as a

complete stand-alone solution.

Maintenance of your Nevis Series High Purity Nitrogen Generator is simple with all regular maintenance your generator will continue to deliver the gas you need for years to come, for additional peace of mind we offer a service package. Currently, this is only available to UK customers but if you are elsewhere, we have a network of service companies which we trust.

An on-site nitrogen generator provides several benefits over bottled gas:

  • Save money: You never have to pay for bottled nitrogen again.

  • Save space: A nitrogen generator requires less space than storing gas cylinders.

  • Improve workplace safety: Employees don’t have to move heavy gas cylinders, nor do you have to store high-pressure tanks.

  • Reduce delays: You don’t have to wait for deliveries of bottled gas.


  • Vessel Leak Detection

  • Ionisation (API-ms)

  • GC-FID (Carrier gas)

  • GC-FID (Make-up gas)



All Apex units are supplied with our standard 1 year warranty. Accompanied with our on-going care and servicing facilities Apex provides the highest quality peace of mind.

Do you need a bespoke solution? We can supply a custom gas generator for any application. Choose your flow rate, purity and output pressure. Click "Request a Quote" to let us help you.

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