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RS ISO 17879: 2017
Gas cylinders — Self-closing cylinder valves — Specification and type testing

Abstract

This document specifies the design, type testing, marking and manufacturing tests and examinations
requirements for self-closing cylinder valves intended to be fitted to refillable transportable gas
cylinders which convey compressed, liquefied or dissolved gases.
NOTE 1 The main applications for such self-closing cylinder valves are in the calibration gas and beverage
industries.
This document covers the function of a self-closing cylinder valve as a closure.
NOTE 2 Requirements for standard cylinder valves are given in ISO 10297. Requirements for quick-release
cylinder valves are given in ISO 17871.
This document is not applicable to self-closing cylinder valves for cryogenic equipment, for portable fire
extinguishers, or for liquefied petroleum gas (LPG).
NOTE 3 Requirements for valves for cryogenic vessels are specified in ISO 21011 and at a regional level, for
example, in EN 1626. Requirements for valves for portable fire extinguishers at a regional level are specified, for
example, in EN 3 series. Requirements for self-closing LPG cylinder valves are specified in ISO 14245.
NOTE 4 Additional requirements for pressure-relief devices might be specified in international/regional
regulations/standards.

General Information

Code	Classification	Theme	Pages	Publisher	Availability
RS ISO 17879: 2017	ADOPTED ISO STANDARDS	Petroleum and related technologies	31	First Edition Dec 2025	Available