BS 341 British Standard Cylinder Connectors
Cylinder connector to BS 341, the UK outlet standard: No. 3 and No. 4 listed, other numbers to order, in chrome plated brass or 316L stainless steel.
Key features
- BS 341 No. 3 and No. 4 listed, other numbers to order
- Chrome plated brass or 316L stainless steel, wrench tightened
- 16 x 1.336 male or 1/4 NPT male outlet
- EPDM or metal gasket, LG75 or LG100 stem on NPT
- Food grade version to EC 1935/2004 available
Enquire about this product
Priced to your specification. Most enquiries are answered the same working day.
Request a quoteA gas cylinder connector to the British Standard BS 341, the fitting that joins a regulator, supply board or switchover board to the cylinder valve outlet, either directly or through a flexible hose or pigtail. The catalogue range covers the BS 341 number 3 and number 4 outlets in chrome plated brass or 316L stainless steel, with a 16 x 1.336 male or 1/4 NPT male outlet, wrench tightened, and an EPDM or metal gasket by version; LG75 and LG100 stem lengths are listed on the 1/4 NPT versions. Other BS 341 numbers are made to order, so state the gas and the outlet number when you enquire. A food grade version with material compatibility to EC 1935/2004 is available across the range.
Specification
| Standard | BS 341 |
|---|---|
| In/Out Connections | 16 x 1.336 male or 1/4 NPT male outlet |
| Material | Chrome plated brass or 316L stainless steel |
| Cylinder Connection | BS 341 No. 3 or No. 4, other numbers to order |
Downloads
No documents on file for this product yet.
Common questions
- What is the difference between a BS 341 No. 3 and a No. 4 connector?
- The thread direction. Both are the G 5/8 inch size, but the No. 3 is right hand and assigned to oxygen and the inert gases, while the No. 4 is left hand and assigned to acetylene and the flammable gases, so neither will go on the other's cylinder. On a welding set the oxygen side is the No. 3 and the fuel side is the No. 4. Both are listed in chrome plated brass and 316L stainless steel.
- What is on the equipment side of the connector?
- A 16 x 1.336 male outlet or a 1/4 inch NPT male outlet, so the connector goes straight onto a regulator, a supply board or a pigtail. The 16 x 1.336 versions seal with an EPDM gasket and the NPT versions seal metal to metal, with an LG75 or LG100 stem length. All are wrench tightened.
- Can you supply BS 341 numbers other than 3 and 4?
- Yes, to order. No. 8 is carbon dioxide, No. 13 nitrous oxide, and the 300 bar family runs No. 30 for inert gases, No. 31 for air, No. 32 for oxygen and No. 38, left hand, for flammable gases. Give us the gas and the outlet number stamped on the valve. A food grade version with materials to EC 1935/2004 is available across the range.
