Welding, Cutting & Safety Solutions

Tech Master GPS421 Inert Gas Regulator Panel Mounted 0 – 250 Bar (3960043582)


£396.19 ex VAT £475.43 inc VAT

Brand: Gas Arc
Product Model:
In Stock

Single Stage Piston Cylinder Regulator, FKM Seal.

4.5 Purity Single Stage Brass Barstock Piston Cylinder Regulators.

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Tech Master GPS421 Inert Gas Regulator Panel Mounted 0 – 250 Bar (3960043582)

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.


  • Tech Master Single Stage Inert Gas Regulator
  • Designed for Panel Mounting
  • FKM Seal
  • Inlet: 300 Bar 1/4″ NPT Female
  • Outlet: 0-250 Bar 1/4″ NPT Female
  • Option: L


  • Five port configuration
  • Front and rear panel mounting capabilities
  • Encapsulated seat design
  • Low wetted surface area
  • Full range of inlet and outlet fittings
  • Base and side entry


Body Brass Barstock
Bonnet Brass Barstock
Piston Brass
Seat Nylon
Filter 10 Micron 316L Stainless Steel


Maximum Inlet Pressure 60 bar (870 PSI) / 300 bar (4350 PSI)*
Delivery Pressure Range 0-20 bar (300 PSI) / 50 bar (725 PSI) / 100 bar (1450 PSI) / 200 bar (2900 PSI) / 250 bar (3630 PSI)
Gauges 50mm (2”) Diameter
Ports 1/4” NPT Female
Temperature Range -20°C to +60°C (-4°F to +140°F)
Flow Coefficient (Cv) 0.088
Weight 1.5 kg (3.3 lb)**

* Subject to cylinder connection. ** Cylinder connection not included.

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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