EN ISO 17871-2020 pdf free.Gas cylinders — Quick-release cylinder valves — Specification and type testing.
This document, in conjunction with ISO 10297 and ISO 14246, specifies design, type testing, markingand manufacturing tests, and examinations requirements for quick-release cylinder valves intended tobe fitted to refillable transportable gas cylinders, pressure drums and tubes which convey:
non-toxic; non-oxidizing; non-flammable; and-non-corrosive;
compressed or liquefied gases or extinguishing agents charged with compressed gases to be used forfire-extinguishing, explosion protection, and rescue applications.NOTE1 The main application of such quick-release cylinder valves is in the fire-fighting industry. However,there are other applications such as avalanche airbags, life raft inflation and similar applications.NOTE 2 Where there is no risk of ambiguity, gas cylinders, pressure drums and tubes are addressed with thecollective term “cylinders” within this document.
This document covers the function of a quick-release cylinder valve as a closure.
This document does not apply to quick-release cylinder valves for cryogenic equipment and for liquefiedpetroleum gas (LPG).
This document does not apply to quick-release cylinder valves if used as the main closure of portablefire extinguishers because portable fire extinguishers are not covered by transport regulation.
Quick-release cylinder valves of auxiliary refillable propellant gas cylinders used within or as part ofportable fire extinguishers are covered by this document, if these cylinders are transported separately,e.g. for filling (see UN Model Regulations,Chapter 3.3, Special Provision 225, second notel1).
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references, only the edition cited applies. Forundated references, the latest edition of the referenced document (including any amendments) applies.
quick-release cylinder valve:cylinder valve with a valve operating mechanism designed for quick release of gas cylinder contentsthat is actuated by a valve operating device which can be activated by an activation device(3.4) whichmight not be part of the quick-release cylinder valve.EN ISO 17871 pdf download.