nsBAS EN ISO 10497:2024
Testing of valves - Fire type-testing requirements
General information
Status:Project
Number of pages:22
Adoption method:Proglašavanje
Language:engleski
Edition:3.
Realization date:23.04.2024
Forseen date for next stage code:21.06.2024
Technical committee:BAS/TC 41, Pressure equipment and containers
ICS:
23.060.01, Valves in general
Abstract
This document specifies fire type-testing requirements and a fire type-test method for soft- and metal-seated isolation valves with one or more obturators. It is not applicable to the testing requirements for valve actuators other than manually operated gearboxes or similar mechanisms when these form part of the normal valve assembly. Other types of valve actuators (e.g. electrical, pneumatic or hydraulic) can need special protection to operate in the environment considered in this valve test, and the fire testing of such actuators is outside the scope of this document.
This document specifies the measurement and assessment criteria for:
a) through-seat leakage;
b) external leakage;
c) cavity overpressure relief of double-seated valves;
d) operability.
This document specifies the rules whereby the fire-type testing qualification for a valve can be extended to untested sizes, pressure ratings and materials of construction of the same basic design type.
Fire test reports of valves tested according to previous editions of this document are acceptable when submitted together with the full and compliant fire test report as per 6.7 of the edition under which it was tested. Any data missing as required from 6.7 within the fire test report are accepted or rejected at the purchaser’s discretion.
NOTE For the purposes of this document, the terms “fire type-test” and “fire test” are synonymous.
Lifecycle
...
Original document and degree of correspondence
EN ISO 10497:2022, identical
ISO 10497:2022, identical
Relation to BAS standards
Work material
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