Click here to download a copy of the Safety Alert and Attachment

GAWDA has received notice of several incidents of stress corrosion cracks in CGA 580 cylinder valves.  The affected brass valves came from several manufacturers, and an analysis by an independent materials testing and investigation firm has found no evidence of flaws in design or manufacturing.

The cracks appear to be the result of using leak detection solutions that corrode brass, such as ammonia, amines, sulfides or chlorides, and over torquing or otherwise stressing the valves.

GAWDA members are advised to make sure you use leak check solutions that will not corrode brass.  Additional information is available from the Compressed Gas Association in document CGA V-12, “Leak Detection Fluids Use with Gas Cylinders Packages,” Third Edition, 2020.

Attached is a Safety Alert sent out by one GAWDA member company addressing this issue, including recommended practices and general cylinder safe handling and storage practices.

The GAWDA Safety Committee is developing a sample safety practice to help member companies choose leak check solutions compatible with metals commonly used in the industrial and specialty gases industry.

If you have questions or need additional information, please contact Rick Schweitzer, GAWDA General Counsel and Government Affairs Consultant, at rpschweitzer@rpslegal.com or (703) 946-2548.