ISO 28921-2:2015

Industrial valves — Isolating valves for low-temperature applications — Part 2: Type testing

Datum objavljivanja: 5. 11. 2015.

Опште информације

Trenutna faza: 90.92 Effective date: 18. 3. 2026.

Inicijator: ISO

Pripada: ISO/TC 153

Vrsta: Međunarodni standard

ICS: 23.060.01

Jezik: engleski francuski

Kupovina

Status: Objavljen

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Apstrakt

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.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 28921-2:2015
90.92 Odluka o izmeni ili reviziji standarda
18. 3. 2026.

REVIDIRAN OD

NAPUŠTEN
ISO/PWI 28921-2

PROJEKAT
ISO/AWI 28921-2

Nacionalna preuzimanja

SRPS EN ISO 28921-2:2017

ISS

Industrijske armature – Zaporne armature za primenu na niskim temperaturama – Deo 2: Ispitivanje tipa

60.60 Standard objavljen

M153 Saznaj više