Publication

P-66: Guideline for the Selection of Pressure Relief Devices and Valve Outlets for UN Marked Cylinders

Abstract

This publication provides guidelines to assist in the selection of a PRD for a cylinder with UN stamp markings and the selection of a CGA valve outlet for a cylinder with UN stamp markings. It is important to note that some UN marked cylinders may also be marked with U.S. Department of Transportation (DOT) and/or Transport Canada (TC) markings. This publication also applies to the determination of specific setting of PRDs on comparable DOT specification and UN marked cylinders. It also details the proper stamp marking that needs to be on the PRD.

This publication applies to high pressure seamless steel and aluminum alloy cylinders.

This publication does not apply to CGA valve outlets on manifolded cylinders and tubes or to tubes.

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Properties

Edition:
1
Published:
June 2015, reaffirmed June 2022
Status:
Available To the Public
Size:
3 pages
Publisher:
CGA
Special Attributes:
Notes:
Reaffirmed 2022
Committee:
Cylinder Valve

Cataloging

Category
Protection and Safe Handling     Standards & Guidelines
Keywords
cylinder marking  |  cylinders  |  pressure relief devices
Related
S-1.1  |  S-1.2  |  S-1.3  |  S-7  |  V-1  |  V-7  |  V-7.1