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Hi Lo DG91N UA 3/8″ Flashback Arrestor

  • Safeguards against dangerous and potentially explosive situations
  • Protects you and your surroundings
  • Allows you to focus on the job at hand with confidence
  • Built to last for long-term use
  • Seamless integration into your existing welding setup
  • Ensures adherence to safety regulations


Worldwide Delivery
Rated excellent on Google
Over 50 years welding expertise
Free delivery over £85 inc. VAT

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Forge a Safer Welding Path with the Hi-Lo DG91N UA Flashback Arrestor

Experience unparalleled safety and peace of mind during your next welding project with the Hi-Lo DG91N UA Flashback Arrestor. This industry-standard safety device acts as your unwavering guardian against a potentially catastrophic event – a flashback.

A flashback occurs when a combustible mixture of fuel gas and oxygen travels backward from the torch tip into the hoses and regulators. The Hi-Lo DG91N UA Flashback Arrestor effectively halts this dangerous situation in its tracks, safeguarding you, your equipment, and your workspace.


  • Triple Safety Protection: Flame arrestor, non-return valve, and thermal shut-off valve for ultimate safety
  • Fuel Gas & Oxygen Compatible: Available in models for both fuel gas and oxygen lines
  • EN730-1 ISO 5175-1 Compliant: Meets stringent industry safety standards
  • Regularly Tested: Ensures optimal performance and reliability


Part No. Description
HL070320 Fuel Gas
HL070319 Oxygen
Additional information
Free Delivery

Free Delivery


Hi Lo

Fuel Type

Fuel , Oxygen


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.

Machine Servicing

We can repair all makes and model welding machines using genuine manufacturer parts.


Successfully calibrated welding equipment can maximise performance through high quality welds. A certified calibration by us will ensure that your welding machine runs to its best capabilities.

Hi Lo DG91N UA Flashback Arrestor

Hi Lo DG91N UA 3/8″ Flashback Arrestor

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