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Cylinder Connector
DIN 477 No.1
Stainless Steel – Flat Face and Stem and Washer

£49.50 Ex. VAT

W21.8mm X 1 m LH x 1/4″ NPTm x 100mm stem length + PTFE washer. For Flammable Gases.

5 in stock (can be backordered)

SKU CC.DIN1.SS Category Tag


W21.8mm X 1 m LH x 1/4″ NPTm x 100mm stem length + PTFE washer. For Flammable Gases.

Additional information

Weight 0.5 kg


Frequently Asked Questions:

How do I choose the right cylinder connector for my equipment?

It’s important to match the type of cylinder connector with the specific gas and equipment being used, taking into account factors such as thread type, size, and pressure rating. Consult the equipment manufacturer’s specifications or a knowledgeable supplier to ensure that you choose the correct cylinder connector.

What is the proper way to connect a cylinder connector to a gas cylinder?

Make sure that the cylinder valve is closed before attaching the cylinder connector. Thread the connector onto the cylinder valve by hand, making sure that it is snug but not over-tightened. Use a wrench to tighten it 1/4 to 1/2 turn more, but do not over-tighten, which can damage the valve or cause leaks.

How often should cylinder connectors be inspected and replaced?

Cylinder connectors should be visually inspected regularly for signs of damage or wear, and periodically pressure tested to ensure that they remain leak-tight. Follow the equipment manufacturer’s recommendations for inspection and replacement intervals, or consult a knowledgeable supplier for guidance.

Where can I seek advice about cylinder connectors?

If you need advice about a cylinder connector, we are able to support.  There are several other sources you can turn to:

The Equipment Manufacturer: The manufacturer of the equipment that the cylinder connector will be used with is a good source of information about choosing the right cylinder connector. They can provide guidance on the specific type, size, and specifications needed for your equipment.

Your Gas Supplier: Your gas supplier can also provide advice on cylinder connectors, as they have expertise in the types of gases being used and the equipment needed to handle them safely.

The Cylinder Connector Manufacturer: The manufacturer of the cylinder connector may also be able to provide advice on choosing the right product for your application and ensuring proper installation and use.

Industry Organisations: British Compressed Gas Association (BCGA) can provide guidance on cylinder connectors and related equipment standards and practices.

It’s important to make sure that the advice you receive is from a reputable source and is specific to your application and needs. Improper selection or use of a cylinder connector can lead to safety hazards, so it’s crucial to take care when choosing and using these components. Contact us here for any advice required.

Selection Information

*Please confirm connection with Cylinder Valve stamp/manufacturer – specific gas, purity and pressure required as these do vary the information of the below table.

Acetylene 4 510
Air 3 6 590
Ammonia 10 8 240
Argon 3 10 580
Arsine 4 5 350
Butane 4 1 510
Carbon Dioxide 8 6 320
Carbon Monoxide 4 5 350
Chlorine 6 8 660
Deuterium 4 1 350
Ethane 4 1 350
Ethylene 4 1 350
Ethylene Oxide 7 1 510
Halocarbon-14 6 6 580
Halocarbon-22 6 6 660
Helium 3 10 580
Hydrogen 4 1 350
Hydrogen Bromide 8 330
Hydrogen Chloride 6 8 330
Hydrogen Sulphide 15 5 330
Iso-Butane 4 1 510
Iso-Butylene 4 1 510
Krypton 3 10 580
Methane 4 1 350
Methyl Chloride 7 5 660
Natural Gas 4 1 350
Neon 3 10 580
Nitrogen 3 10 580
Nitrogen Dioxide 14 8 660
Nitrous Oxide 13 6 326
Oxygen 3 540
Phosgene 6 8 660
Phosphine 4 5 350
Propane 4 1 510
Propylene 4 1 510
Silane 5 350
Silicon Tetrafluoride 8 330
Sulphur Dioxide 12 8 660
Sulphur Hexafluoride 6 6 590
Xenon 3 10 580

Technical Drawing