Welding, Cutting & Safety Solutions

GPS421 (GA400) Oxygen Regulator RAN04001 – 3960000059


£263.93 ex VAT £316.72 inc VAT

Brand: Gas Arc
Product Model:
In Stock

Single Stage Piston Cylinder Regulator, FKM Seal.

Intended for primary pressure gas control of non-corrosive or toxic, technical grade gases up to grade 4.5 purity (99.995%), on applications where slight pressure variation from decreasing cylinder pressure is acceptable.

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GA400 Oxygen Regulator [BS341 No.3] RAN04001/3960000059

Product Number – GPS421-04-07-01-01-009-078-A


  • All brass construction
  • 300 bar service
  • Inlet and outlet pressure gauges to ISO 5171 for accurate gas pressure control
  • Encapsulated valve
  • Piston design for ease of pressure adjustment
  • Industrial and high purity gas options available
  • Designed and manufactured in Norfolk, UK.

Technical Data:

  • Type Single-stage
  • Inlet Pressure maximum 300 bar
  • Outlet Pressure 0-20 bar


Body Brass
Valve seat Nylon
Piston Brass
Filter 316L Stainless Steel
Inlet Connection BS341
Outlet Port 3/8 BSP
Temperature range -200°C to +600°C
Maximum flow 140 m³/hr @15°C in Air at 300 bar inlet
Weight 1.4 kg
Pressure Adjusting Screw White

Please note: If you require a test certificate with your regulator, it must be ordered at the same time. Our certification product can be found here: Gas Arc Regulator Test Certificate

Data Sheet can be found in Documents Section

A carriage charge is applied to orders, for standard 1-2 day shipments to mainland destinations within the United Kingdom. Other destinations and premium services are available but subject to additional freight charges.


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