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ESAB GASARC Spec Master HPT620 Multi Stage Fuel Gas Regulator



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Over 50 years welding expertise
Free delivery over £85 inc. VAT

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6.0 Purity Two Stage Nickel Plated Brass Barstock Piston Fuel Gas Cylinder Regulator

The ESAB GASARC Spec Master HPT620 Series two stage piston fuel gas cylinder regulators are designed for primary pressure gas control of non-corrosive or toxic, high purity gases up to grade 6.0 purity (99.9999%), on applications where constant delivery pressure is required as the cylinder pressure decreases.



  • Six 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



  • Propane
  • Butane
  • LPG


What’s Included

  • Cylinder Connection
  • Cylinder Contents Gauge
  • Outlet Pressure Gauge



Model No. Part No. Description Gas
HPT621-04-07-01-01-012-00-A 3960002411 Spec-Master Two Stage 2 Gauge Cylinder Regulator 0-20bar BS 341 No.4 (Side Entry)1/4NPT Female Outlet Fuel
HPT621-04-10-01-01-012-00-A 3960006167 Spec-Master Two Stage 2 Gauge Cylinder Regulator 0-50bar BS 341 No.4 (Side Entry)1/4NPT Female Outlet Fuel


Additional information
Free Delivery

Free Delivery



Outlet Pressure






Fuel Type


Regulator Type

Multi Stage


Click and Collect:
Free Click and Collect with no minimum spend from our warehouse on the Empress Park, Southampton with on-site parking. Once your order has been processed, we will advise you when it is ready for pickup.  Just want advice?  No problem.  Feel free to call in to speak to one of our friendly experts.

EWS Fleet Coverage Areas: 
Southampton | Eastleigh | Winchester | Alton | Farnham | Petersfield | Havant | Hayling Island | Waterlooville | Fareham | Portsmouth | Gosport | Chichester | Arun | Worthing | New Forest | Christchurch | Salisbury | Wiltshire | Test Valley | Basingstoke and Deane | West Berkshire | Reading | Hart | Waverley | East Hampshire | East Dorset | Hampshire | Bournemouth | Poole | Lymington | Ringwood | Verwood | East Preston | Goring-by-Sea | Lancing | Shoreham-by-Sea | Steyning | Bramber | Horsham | Adur

Nationwide Delivery (all items excluding gas cylinders):
Free UK mainland (England, Scotland and Wales) delivery on orders over £85 inc. VAT.
UK mainland delivery is £7.50 inc. VAT on orders under £85 inc. VAT.
UK islands and Northern Ireland shipping costs may vary.

UK Delivery for Gas Cylinders:
Shipping costs for gas cylinders are calculated at checkout once the delivery postcode is entered.

International Delivery:
Please contact us for an accurate delivery quote.

Body Nickel Plated Brass Barstock
Bonnet Nickel Plated Brass Barstock
Piston Brass
Valve Seat PCTFE
Filter 10 Micron 316L Stainless Steel
Maximum Inlet Pressure 60 bar (870 PSI)
300 bar (4350 PSI) *
Delivery Pressure Range 20 bar (300 PSI)
50 bar (725 PSI)
Gauges 50mm (2”) Diameter
Ports 1/4” NPT Female
Temperature Range -20° C to +60° C (-4° F to +140° F)
Helium Leak Integrity 1 x 10-9 mbar l/s
Weight 2.0 kg (4.4 lb) **

*Subject to Cylinder Connection

**Cylinder connection not included

CP7 & CP47 Gas Inspections

Regular inspections are crucial for ensuring the safety and compliance of your gas systems. Our certified gas inspections ensure your systems are always up to HSE standards.

Gas Manifold Management

Gas manifolds are vital for distributing compressed gases safely and effectively. We provide complete solutions for the supply, installation, and maintenance of gas manifolds, ensuring your systems run optimally.

ESAB GASARC Spec Master Oxygen Regulator

ESAB GASARC Spec Master HPT620 Multi Stage Fuel Gas Regulator

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