Oxygen Flashback Arrestor — standard torch-side and regulator-side protection
The Oxygen Flashback Arrestor is the basic safety fitting for any oxy-fuel set. REAL GAZ supplies regulator-mounted and torch-mounted arrestors with a flame-quenching element, a non-return valve and a cut-off that closes when heat or pressure shock is detected.
Left-hand and right-hand threads are available so oxygen and fuel gas parts cannot be swapped.
Left-hand and right-hand threads are available so oxygen and fuel gas parts cannot be swapped.
Our range is specified to EN ISO 5175-1, with gas-welding hose and coupling sizes according to EN ISO 3821, suitable for professional and trade welders.
Many incidents begin with a small fault: a loose hose clamp, a worn torch nozzle or a blocked tip that allows gas to flow back. The arrestor is the last barrier before the flame reaches the regulator and cylinder, which is why it should be considered a safety component rather than an optional accessory. Always check that the arrestor is marked for the gas used, that the flow arrow points toward the torch and that the connection nuts are tight but not over-tightened. Ask us about handy sets that include two arrestors, hoses, clamps and a leak-test fluid in a single carton.
🏭 Where Oxygen Flashback Arrestors Are Used
- ⚙️ Plumbing and HVAC brazing — copper joints are brazed with compact oxygen sets on site;
- 🔬 Glassblowing — fine-flame burners need reliable protection at low flows;
- 🔧 Vehicle and agricultural repair — heating of seized bolts and straightening of panels;
- 🚀 Jewellery and goldsmithing — small oxygen torches with narrow hoses on a workbench.
💡 Why Choose REAL GAZ
- ✅ Standard fittings — common G 1/4 and 9/16 inch connections suit most regulators;
- 🧪 Clean from the factory — each unit is bagged after oxygen cleaning;
- 🎯 Compact bodies — slim designs reduce hose strain and fit crowded gas trolleys;
- 🔒 Colour coding — blue oxygen and red fuel-gas markings reduce connection errors;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- flow resistance testing at rated pressure;
- non-return valve opening and sealing checks;
- thread gauge verification;
- leak testing under water or detection fluid.
Cylinders and gas equipment comply with ADR / UN transport rules and relevant EN/ISO standards.
📦 Everyday Good Practice
- test the non-return valve at the start of each working period;
- open cylinder valves slowly and keep your body clear of the regulator face;
- retire any unit after a flashback or visible heat damage;
- keep spare arrestors on the trolley so protection is never skipped.
⚙️ Trusted Gas Solutions
REAL GAZ delivers the oxygen flashback arrestor together with cylinders, regulators, hoses and torches to trade customers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA.
REAL GAZ — basic protection done properly.