DUAL DIAMETER WELDING SLEEVE — two bore sizes, one flexible gas line
A dual diameter welding sleeve is a flexible gas hose that combines two different bore sizes in one run, so a torch can be fed from a larger supply line while the working end stays light and easy to handle.
REAL GAZ selects the rubber compound, reinforcement braid and bore combination to suit oxygen and fuel gas duty, and checks every length before it leaves the warehouse.
REAL GAZ selects the rubber compound, reinforcement braid and bore combination to suit oxygen and fuel gas duty, and checks every length before it leaves the warehouse.
Typical bore pairs include 6,3 mm and 9,0 mm, and the sleeve is cut and supplied in whole metres. Tell our team the torch, regulator and gas you use and we will confirm the correct configuration before you order, so there is no need to adapt the hose on site.
Because the transition between the two diameters is the most stressed point of the hose, we inspect it closely for bonding quality. A dual diameter welding sleeve should always be clamped with ferrules sized to each bore, never with a single universal clip.
REAL GAZ supplies this product according to EN ISO 3821, EN 559 and related standards, suitable for industrial and workshop use.
🏭 Where Dual Diameter Sleeves Are Used
- ⚙️ Oxy-fuel cutting sets — a wider bore near the regulator keeps flow steady over a long run, while the narrower end gives the operator better control and lighter handling at the torch;
- 🔬 Plant maintenance — maintenance crews connect one long supply line to different torches without having to change the whole hose assembly each time the job changes;
- 🏥 Shipyard repair — steel plate cutting and heating work benefits from a hose that stays flexible at the torch yet still delivers enough gas along the full length;
- 🚀 Training workshops — technical colleges use mixed-bore hose to show students how bore size affects gas flow, pressure drop and everyday handling.
💡 Why Choose REAL GAZ
- ✅ Matched to your torch — we confirm both bore sizes against your torch, regulator and nozzle before supply;
- 🧪 Colour-coded options — blue for oxygen and red for fuel gas, following common workshop practice and national safety rules;
- 🎯 Cut to length — sleeves are supplied in whole metres, so there is very little offcut waste or leftover stock;
- 🔒 Pressure rated — the working pressure class is marked on the hose and checked again at dispatch;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- visual inspection of bore, cover and reinforcement braid;
- hydrostatic proof pressure testing of sample lengths;
- bore diameter measurement at both ends and at the transition;
- ends sealed against dust and moisture before dispatch.
Cylinders and gas equipment comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ supplies the sleeve to fabricators, plant maintenance teams and gas distributors in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. Alongside the hose we provide regulators, flashback arrestors, clamps and connectors, so one order covers the whole torch line.
REAL GAZ — Two bores, one reliable line.