SINGLE HOSE ACETYLENE (RED) ISO 3821 — colour-coded single-line hose to ISO 3821
The Single Hose Acetylene (Red) ISO 3821 from REAL GAZ is a flexible rubber hose for acetylene and other fuel gases, coloured red to meet the international code for flammable gas.
It has a smooth inner tube, a textile reinforcement and a weather-resistant red cover, built to bend without kinking at the torch.
It has a smooth inner tube, a textile reinforcement and a weather-resistant red cover, built to bend without kinking at the torch.
REAL GAZ supplies this product according to ISO 3821, EN 559 and ISO 14113, for welding, cutting and heating applications.
🏭 Where Single Acetylene Hoses Are Used
- 🔥 Oxy-acetylene cutting — a single hose delivers acetylene from the regulator to the cutting torch in steel fabrication;
- 🛠️ Welding and brazing — portable kits use the red hose for acetylene while a blue hose carries oxygen;
- 🏭 Heat treatment — small furnaces and preheating burners are fed through short red hose runs;
- 🚧 Demolition and repair — light, flexible hose is easy to drag across uneven ground.
💡 Why Choose REAL GAZ
- ✅ International colour — red signals fuel gas and helps avoid mix-ups with oxygen hose;
- 🧪 Acetylene-compatible lining — the inner tube resists acetylene and acetone carried over from cylinders;
- 🎯 Several bores — 6.3, 8 and 10 mm sizes cover typical torch demands;
- 🔒 Abrasion and flame resistance — the cover resists abrasion, oil and brief heat contact;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
📐 Selection Guide
- select the bore according to the torch consumption and hose length;
- confirm the working pressure class marked on the hose;
- order hose as coil lengths or cut and assembled with nipples and nuts.
📦 Supply and Handling
The hose is available on coils of 20, 40 and 50 metres, as well as in cut lengths with fittings crimped on at our workshop. Each coil is wrapped in protective film and marked with the standard, bore, colour and pressure class. Welders who work from a trolley often select 6.3 mm bore for light torches; machine cutters choose 8 mm or 10 mm. We can supply hose reels, hose guards and spare clamps with the same order. Please tell us the torch model and the length of run so we can advise on bore and pressure drop.
🔬 Quality Control & Safety
- dimensional and wall-thickness checks;
- hydrostatic proof testing of sample lengths;
- adhesion testing of tube to reinforcement;
- leak testing and pressure integrity checks.
Replace any hose that shows cracks, blisters or burn damage, and never repair it with tape. Products and cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ supplies Single Acetylene Hoses to welders and fabricators in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. A single hose acetylene (red) ISO 3821 line is simple to specify and quick to supply.
REAL GAZ — Red for fuel, right for the job.