scope:

This publication applies to quick-connect couplings with integral CGA E-1, Standard for Rubber Welding Hose and Hose Connections for Gas Welding, Cutting, and Allied Processes, or ISO/TR 28821, Gas welding equipment - Hose connections for equipment for welding, cutting and allied processes - Listing of connections which are either standardised or in common use, connections used between regulators, torches and/or other gas welding equipment, sometimes referred to as hose-type quick-connects, for pressures up to 200 psi (1380 kPa) [2, 3]. This publication covers requirements and considerations for design and maintenance of indexed pin-type noninterchangeable welding quick-action couplings. It is the intention of this publication to provide some guidance because of the various designs that exist.

NOTE-Standard pneumatic quick-connectors should not be used for welding, cutting, or allied processes with gases that are flammable or are classified as oxidizers. Only quick-connects specifically designed for the gas service and application should be used.

WARNING: Pneumatic quick-connectors shall never be used for flammable and oxidizer gases used for welding, cutting, or allied processes. Misconnections can cause hazardous mixed gas conditions which increase the risk of fire and/or explosion resulting in property damage and/or personal injury.

This publication does not replace or overrule the connection requirements of CGA E-1 or ISO/TR 28821 [2, 3].