FTI offers a full range of gas cylinder connectors conforming to British Standard BS341.
Our range is available in Brass, Nickel Plated Brass or Stainless Steel.
Further information on the range and a gas reference chart can be seen below and also in the product data sheet that can be downloaded here.
If you cannot see a bottle connector that suits your requirements or you are unsure of what you need please contact us.
FTI also specialise in the supply of Gas Regulators and High Pressure Hoses for use with the gas and cylinder connectors.
Lab Master (Gas Grade 99.999%)
Spec Master (Gas Grade 99.9999%)
Chem Master (Gas Grade 99.9999% – Full Stainless Steel For Toxic and Corrosive)
The following diagrams show the configuration of various BS341 cylinder connections.
| Gas | BS | Gas | BS |
| Acetylene | 4 | Hydrogen Chloride | 6 |
| Air | 3 | Hydrogen Sulphide | 15 |
| Allene | – | Iso-Butane | 4 |
| Ammonia | 10 | Iso-Butylene | 4 |
| Argon | 3 | Krypton | 3 |
| Arsine | 4 | Methane | 4 |
| 1,3-Butadiene | 4 | Methyl Chloride | 7 |
| Butane | 4 | Methyl Mercaptan | – |
| Butenes | 4 | Monoethylamine | 11 |
| Carbon Dioxide | 8 | Monomethylamine | 11 |
| Carbon Monoxide | 4 | Natural Gas | 4 |
| Carbonyl Fluoride | – | Neon | 3 |
| Carbonyl Sulphide | – | Nitric Acid | 14 |
| Chlorine | 6 | Nitrogen | 3 |
| Cyanogen | – | Nitrogen Dioxide | 14 |
| Deuterium | 4 | Nitrous Oxide | 13 |
| Dimethylamine | 11 | Oxygen | 3 |
| Dimethyl Ether | – | Phosgene | 6 |
| Ethane | 4 | Phosphine | 4 |
| Ethyl Acetylene | – | Propane | 4 |
| Ethyl Chloride | 7 | Propylene | 4 |
| Ethylene | 4 | Silane | – |
| Ethylene Oxide | 7 | Silicon Tetrafluoride | – |
| Halocarbon-14 | 6 | Sulphur Dioxide | 12 |
| Halocarbon-22 | 6 | Sulphur Hexafluoride | 6 |
| Helium | 3 | Trimethylamine | 11 |
| Hydrogen | 4 | Vinyl Chloride | 7 |
| Hydrogen Bromide | – | Xenon | 3 |