top of page


The Munro series provides flexibility to match your system requirements. 

Designed for the Mass Spectrometry market, the Munro Nitrogen Generator range is an extension of the Nevis range. The system is economical to run, producing nitrogen only when needed.


The Apex Munro is a discrete, efficient, modular system that produces high purity nitrogen only when you need it. The Munro uses PSA technology for superior performance and reliability. A range of models, including options for built-in compressors, is available to cover a wide range of applications. The larger units are fitted with castors to allow them to be manoeuvred easily into position. Most models in the series will fit under a workbench.

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

Munro Series-30.png
Features and Benefits
  • ​Standard flow rates of up to 60litres/min

  • Output pressure 7 Barg / 100psig

  • Certified purity level >95%

  • Medical grade tubing as standard

  • Stand-by mode

  • PSA technology

  • Easy installation

  • Simple and low cost maintenance

  • Integrated air compressor available

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] 

PSA Diagram Brochure_edited.png

The Munro series of high flow rate Nitrogen generators which is a range of discrete, efficient and modular Nitrogen generators that produce dry nitrogen only when you need it. The Nevis series uses Pressure Swing Adsorption (PSA) technology for superior performance and reliability. The series includes a range of models to cover most applications. When selecting a system, consideration should be given to the required flow rate, purity and delivery pressure. Additionally Apex will be happy to consult with you as to which specific model would suit you. 

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 parts being easily accessible, for peace of mind we offer a service package. Currently, this is only available to UK customers but if you are elsewhere, we have a wide 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.


  • Mass Spectrometry (LCMS instruments)

  • Drying Gas & Shield Gas

  • Fibre Optics

  • Blanket gas for Ovens

  • Special Coatings

  • Wave Soldering

  • Packaging



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.

bottom of page