CGA V-9-2012

$40.30

Compressed Gas Association Standard for Compressed Gas Cylinder Valves

Published By	Publication Date	Number of Pages
CGA	2012-05-01	56

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Category: CGA

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Description

This standard serves to inform cylinder valve users, buyers, sellers, manufacturers, and others in the safe and proper use of cylinder valves.

This standard covers cylinder valve design, manufacture, and use including performance requirements such as operating temperature limits, pressure range, and flow capabilities. It also includes requirements such as materials, inlet and outlet connections, cleaning, qualification and production testing, maintenance, and reconditioning.

This standard also includes guidelines and requirements for the design, material selection, testing, and marking of cylinder valve protective caps. Except as noted in the last paragraph of this section, this standard is intended for valves for compressed gases packaged in U.S. Department of Transportation (DOT) and Transport Canada (TC) cylinders.

This standard provides information on valve selection, valve use guidelines, and valve protection caps (see Appendix A, Appendix B, and Section 10, respectively).

Standards incorporated by reference in this publication include the referenced document's procedures, criteria, and other requirements unless otherwise noted. This standard does not prejudice the continued use of valves in service or in inventory at a manufacturer's or user's site that were manufactured before the effective date of this standard provided the valves are identifiable to the original valve manufacturer and traceable to a manufacturing period. The identifying marks shall be permanent and visible on an installed valve.

The effective date of this standard is three years from the date of the publication of this edition, which was May 4, 2012. Valves manufactured on and after the effective date of this standard shall be in compliance with this standard.

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