OXYGEN FUEL FLASHBACK PREVENTER — a matched pair that guards both sides of the torch
An Oxygen Fuel Flashback Preventer from REAL GAZ protects both lines of an oxy-fuel torch. One unit stops oxygen entering the fuel hose, and the other stops fuel entering the oxygen hose, which is the usual route to a dangerous mixture.
We supply matched sets, with the correct thread direction and colour coding for each gas, so installers cannot easily mix them up.
We supply matched sets, with the correct thread direction and colour coding for each gas, so installers cannot easily mix them up.
Sets conform to ISO 5175-1, EN 561 and EN 1089-3, aimed at fabrication and repair shops.
🏭 Where Oxygen and Fuel Flashback Preventers Are Used
- ⚙️ Torch handles — fit compact valves at the handle to keep mixing within safe limits;
- 🔬 Regulator outlets — add a second layer where hoses connect to regulators;
- 🏥 Teaching workshops — use a clearly marked set to demonstrate correct set-up;
- 🚀 Field repair kits — carry preventers in toolboxes for jobs away from base.
💡 Why Choose REAL GAZ
- ✅ Paired design — each set is ready for oxygen and fuel use;
- 🧪 Colour coding — blue and red or black markings help avoid mistakes;
- 🎯 Low resistance — flow loss is minimal during normal operation;
- 🔒 Robust seals — long cycle life reduces replacement frequency;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- reverse-flow testing of each valve;
- oxygen-clean preparation for oxygen units;
- leak tests with helium or soap film;
- set matching and labelling checks.
Replace all preventers after any flashback, and test the set every six months. Cylinders follow ADR / UN rules and relevant EN/ISO standards.
Using the set correctly: a preventer set does the most good when it is fitted consistently. Make the oxygen preventer part of the oxygen line and the fuel preventer part of the fuel line, both close to the torch, and confirm that the gas names printed on the housings match the hoses. Before every shift, purge each line for a few seconds, check for leaks and look at the hose ends. Replace the entire set if the valve seat is contaminated or the housing is dented. A simple tag recording the fitting date helps supervisors see at a glance which sets are due for inspection. Supervisors can add the preventer check to a daily start-up sheet, so any missing or damaged unit is found before work begins. We also offer replacement seals and gaskets that match the original design, so that repairs remain consistent with the tested product and its marking.
⚙️ Trusted Gas Solutions
REAL GAZ provides the Oxygen Fuel Flashback Preventer as a single set or in bulk. We deliver to contractors and workshops in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA.
REAL GAZ — two lines, two guards, one safe flame.