SK SSH/EN/ISO 28921-2:2022
Status: Published
Gjuha: English
Faqe: 31
Publikuar: 2022-11-17
Regjistri Kombëtar: 436/2022
Botim:
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Standardet ndërkombëtare që kanë lidhje
This standard is identical to:
EN ISO 28921-2:2017
CEN/TC 69
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Çmim: 29 €
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Titulli Shqip
Valvola indrustriale - Valvolat mbyllëse (izoluese) për zbatime në temperaturë të ulët të lëngut - Pjesa 2: Prova e tipit (ISO 28921-2:2015)
Titulli Anglisht
Industrial valves - Isolating valves for low-temperature applications - Part 2: Type testing (ISO 28921-2:2015)
Scope Shqip
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Scope Anglisht
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.
Komitetet Teknike
ICS
Direktivë
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Veprim Kombëtar
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Numri Standardit
Gjuha
Status
Publikuar
Faqe
Çmim
Blej
Withdrawn
2022-11-17
37
32 €
Valvola indrustriale - Valvolat mbyllëse (izoluese) për zbatime në temperaturë të ulët të lëngut - Pjesa 1: Projektimi, prodhimi dhe kontrolli i produktit (ISO 28921-1:2013)