BS EN ISO 28921-2:2017 - Industrial valves. Isolating valves for low-temperature applications. Type testing

BS EN ISO 28921-2:2017

Industrial valves. Isolating valves for low-temperature applications. Type testing

Status : Current   Published : November 2015



ISO 28921-2:2015 specifies requirements for the type testing of isolating valves for low-temperature applications to verify the performance of valves at a low temperature from ? 50 °C down to ? 196 °C. NOTE Nominal sizes (DN), nominal pipe sizes (NPS), nominal pressure (PN) and Classes are covered in ISO 28921?1. ISO 28921-2:2015 does not evaluate valve actuators unless they are integral part of the valve. Valves during testing can be operated manually or an actuator can be used during the testing. The effect of cold gas vapours during testing is taken into consideration in particular if the actuator is mounted directly over the test stand with the cold gases engulfing the actuator. ISO 28921-2:2015 does not apply to valves for cryogenic services, designed in accordance with ISO 21011, used with cryogenic vessels.

Standard NumberBS EN ISO 28921-2:2017
TitleIndustrial valves. Isolating valves for low-temperature applications. Type testing
Publication Date30 November 2015
Normative References(Required to achieve compliance to this standard)ASME B31.3, ISO 28921-1, ISO 5208, EN 13480-2
Informative References(Provided for Information)ISO 7121, ISO 21011, ISO 12149, ASME B16.34, ISO 17292, ISO 10631, ISO 6002, ISO 14313, ISO 23208, ISO 10497, ISO 6708, ISO 7268, ISO 15761, ISO 10434
ReplacesBS EN 12567:2000
International RelationshipsEN ISO 28921-2:2017,ISO 28921-2
Amended ByCorrigendum, March 2017
DescriptorsLeak tests, Liquid valves, Metals, Test equipment, Industrial, Petroleum technology, Pressure testing, Fluid equipment, Valves, Gas valves
Title in FrenchRobinetterie industrielle. Robinets d'isolement pour application à basses températures. Essais de type
Title in GermanIndustriearmaturen. Absperrventile für die Anwendung im Niedertemperaturbereich. Typprüfung
ISBN978 0 580 94528 1
File Size3.24 MB

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