Products by Type

Related Links

Nitrogen (Oxygen-Free)


Features

Nitrogen cylinder
  • Odourless and colourless
  • Non-toxic
  • Does not support combustion
  • An asphyxiant (does not support life)
  • Non-reactive except at very high temperatures
  • Does not react with oxygen at low temperatures
  • Inert, dry and slightly soluble
  • Available in 300-bar MCPs

Benefits

  • Inert to nearly all substances at ambient temperatures and moderate conditions
  • Nitrogen keeps laser-cut faces oxide-free due to the chemical inertness to react with the atmosphere
  • At higher temperatures, nitrogen can react to form metal nitrides
  • Nitrogen gas is only slightly soluble in a wide range of liquids and is therefore used to flush unwanted gases from solutions
  • Reduces internal degradation of the rubber in tyres due to oxidisation
  • As a cryogenic liquid, nitrogen can be used to thermally contract metals

Applications and Uses

  • Used for blanketing and purging applications to displace or dilute all unwanted gas or vapour
  • Widely used for reasons of safety and the prevention of product degradation in the chemicals and petroleum industry 

                   Inerting reactors and storage tanks
                   Purging vessels and pipelines
                   Sparging
                   Pressure-transfer of liquids

  • Shielding or assist gas for plasma-cutting aluminium and stainless steel, and as an assist gas for laser-cutting stainless steel TIG-welding of tough-pitch copper
  • Heat-treatment processes to protect some of the most reactive metals
  • In electrochemical analysis, can be bubbled through to displace any oxygen
  • Pressure-transfer, where the movement of liquids or slurries from one piece of process plant to another is effected using gas pressure
  • Tyre inflation: helps to extend tyre life and prevent tyre bursts
  • Pressurising accumulators for batch-testing applications
  • Can be used for shrink-fitting. The intense cold of liquid nitrogen (-196°C), reduces the physical dimensions of a component placed in the liquid. Once cooled, the component is connected to a mating component before swelling to its original size as it reaches room temperature, thereby securing itself in place

Material Compatibility

Nitrogen is a non-corrosive, inert gas and is compatible with any common metals provided the equipment is designed to with stand the process pressure of a compressed gas cylinder.
For more information on equipment please refer to the left hand navigation bar and click on equipment.

Product Finder
How to Buy