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  • BSI
    21/30402748 DC BS EN ISO 10497. Testing of valves. Fire type-testing requirements
    Edition: 2021
    $44.66
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Description of 21/30402748 DC 2021

This document specifies fire type-testing requirements and a fire type-test method for 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:

  1. through-seat leakage;

  2. external leakage;

  3. cavity overpressure relief of double seated valves;

  4. 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 ISO 10497 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. Additional testing is specified for double seated valves where the body cavity relief valve setting was not recorded in the original fire test report.

NOTE

For the purposes of this document, the terms “fire type-test” and “fire test” are synonymous.



Standard Number21/30402748 DC
TitleBS EN ISO 10497. Testing of valves. Fire type-testing requirements
StatusDefinitive
Publication Date2021-06-14
Identical National Standard OfISO/DIS 10497
DescriptorsQualification approval, Leak tests, Ratings, Fluid equipment, Pressure testing, Fire tests, Size, Industrial, Type testing, Valves
ICS13.220.40 Ignitability and burning behaviour of materials and products, 23.060.01 Valves in general
CommitteePSE/18
PublisherBSI
Pages26

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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