ISO NIPPLE FOR FUEL GAS — left-hand threaded hose tails for flammable gas service
The ISO Nipple for Fuel Gas from REAL GAZ is a hose tail made for acetylene, propane, LPG, natural gas and hydrogen supply lines that feed torches, burners and furnaces.
Fuel gas fittings use a left-hand thread with a notch on the nut, and our nipples follow that convention so they cannot be fitted to an oxygen outlet.
Fuel gas fittings use a left-hand thread with a notch on the nut, and our nipples follow that convention so they cannot be fitted to an oxygen outlet.
REAL GAZ supplies this product according to ISO 3821, EN 560 and ISO 14114 for acetylene equipment, for cutting, brazing and heating work.
🏭 Where Fuel Gas ISO Nipples Are Used
- 🔥 Flame cutting — oxy-fuel cutting torches receive acetylene or propane through a left-hand nipple with a leak-free seat;
- 🏺 Glass and ceramics — burners on glass-working lathes are fed through small-bore nipples with tight tolerance;
- 🧰 Brazing and soldering — HVAC and plumbing crews connect propane torches to hoses via fuel-gas nipples;
- 🌾 Agricultural heating — LPG heaters and flame weeders depend on secure hose tails and sealed joints.
💡 Why Choose REAL GAZ
- ✅ Left-hand threads — the handing and nut notch identify the fitting as fuel gas at a glance;
- 🧪 Copper-limited alloys — acetylene-contact parts are made from brass with copper content kept below the accepted limit;
- 🎯 Bore options — 6.3, 8 and 10 mm hose sizes are supplied to match torch and regulator flow;
- 🔒 Pressure tested — each batch is checked for leaks before packing;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
📐 Selection Guide
- for acetylene, avoid alloys with more than 70 % copper to prevent acetylide formation;
- fit with red fuel-gas hose and a flashback arrestor at the regulator;
- keep threads clean and free of oil or grease.
📦 Supply and Handling
Because mixing up fuel and oxygen fittings is one of the classic causes of welding accidents, every fuel gas nipple is marked and packed apart from oxygen items. We can supply sets that combine a left-hand nut, nipple and gasket for each regulator outlet, so the whole connection is ordered in one line. For hydrogen or natural gas service, please state the gas and working pressure so we can check material suitability. Documentation covers material batch, dimensional report and test results, which is useful for site safety files and insurance audits.
🔬 Quality Control & Safety
- material verification for acetylene-safe alloys;
- thread gauging of the left-hand form;
- degreasing and particle checks;
- leak testing and pressure integrity checks.
Check connections with a leak-detection fluid, never with a naked flame. Products and cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ supplies Fuel Gas ISO Nipples to workshops, installers and industrial users in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. If you need an ISO nipple for fuel gas, we can confirm gas, thread and bore before dispatch.
REAL GAZ — Fuel-gas fittings, fitted right.