Draft Details

Designation:CSA HGV 4.4
Source:CSA
Contact name:Stephanie Kasperski
Review start date:Mar 4, 2026
Review end date:May 3, 2026
Categories:Energy
Contact email:thuy.ton(at)csagroup.org
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Draft Scope/Description:

CSA Scope:

[Replace first paragraph with the following]

This document provides the requirements and test methods for the safety performance of high pressure gas valves that are used in gaseous hydrogen stations of up to the H70 designation and at flow capacities up to and including 300 g/s.

[Add the following note]

NOTE  For North American application, all references to rated pressure are considered to be equivalent to maximum allowable working pressure (MAWP).

 

ISO Scope:

This document provides the requirements and test methods for the safety performance of high pressure gas valves that are used in gaseous hydrogen stations of up to the H70 designation.

This document covers the following gas valves:
— check valve;
— excess flow valve;
— flow control valve;
— hose breakaway device;
— manual valve;
— pressure safety valve;
— shut-off valve.

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