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Cylinder Connections

Maintaining gas purity and integrity

Compressed Gas Association (CGA) and Diameter Index Safety System (DISS) cylinder connections are necessary for safely connecting a gas pressure regulator to the compressed gas cylinder. CGA and DISS cylinder connections from Air Liquide are designed to help preserve gas purity and integrity while delivering specialty gas safely to your point of use. Both are in stock and available for next day shipping.

CGA fittings, which are used to attach to compressed gas cylinders containing specialty gases, are the gas industry standard and were developed through the combined efforts of more than 200 member companies worldwide. Air Liquide offers cylinder connections in a variety of configurations and materials. All gas pressure regulators from Air Liquide come equipped with a CGA fitting that matches its intended gas service.

DISS compressed gas cylinder connections are also available. They provide higher purity and leak integrity than standard service CGA cylinder connections. The connection design is unique in appearance and utilizes a more precise and sophisticated sealing mechanism than standard CGA connections.

For assistance with your CGA and DISS selection, please click here for our selection guide.

Available products

CGA Cylinder Connections 
Air Liquide offers cylinder connections in a variety of configurations and materials. CGA fittings come in brass, stainless steel or with chrome plating, and in a range of pressures and sizes.Air Liquide offers cylinder connections in a variety of configurations and materials. CGA fittings come in brass, stainless steel or with chrome plating, and in a range of pressures and sizes.

 

DISS Cylinder Connections 
Air Liquide also offers ultra-high integrity DISS connections. They are used for connecting various pieces of gas handling equipment, such as pressure regulators or pigtails, directly to the cylinder valve outlet of a semiconductor and/or high-purity specialty gas cylinder.