ISO 21013-4:2012

Name: ISO 21013-4:2012 — Cryogenic vessels — Pilot operated pressure relief devices — Part 4: Pressure-relief accessories for cryogenic service
SKU: ISO 21013-4:2012
Price: 18000 RUB
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Cryogenic vessels — Pilot operated pressure relief devices — Part 4: Pressure-relief accessories for cryogenic service

Название (английский):

ISO 21013-4:2012

Cryogenic vessels — Pilot operated pressure relief devices — Part 4: Pressure-relief accessories for cryogenic service

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 29 мая 2012 г.
Издание:: ISO IS 21013 edition 1 version 1
ICS:: 23.020.40

Тип поставки:

Full version18 000 ₽Read online 24h1 200 ₽Read online 72h1 800 ₽

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Срок поставки:2 раб. дн. (перевод)

Цена:18 000 ₽

Описание (английский):

ISO 21013-4:2012 specifies the requirements for the design, manufacture and testing of pilot operated pressure relief valves for cryogenic service, i.e. for operation with cryogenic fluids in addition to operation at temperatures from ambient to cryogenic. It is restricted to valves not exceeding a size of DN 300 designed to relieve single phase vapours, gases, or mixtures of gases and/or vapours.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 21013-4:2012 specifies requirements for pilot‑operated pressure‑relief valves and accessories for cryogenic service. It covers design, manufacture and testing for valves intended to operate with cryogenic fluids (and at temperatures from ambient down to the rated minimum temperature). The standard is limited to valves up to DN 300 and to devices relieving single‑phase vapours, gases or gas/vapour mixtures. ISO 21013-4 complements ISO 21013-3 (sizing and capacity) and takes precedence where it differs from ISO 4126-4.

Key topics and technical requirements

Scope and definitions: Clear limits on fluid types (cryogenic fluids) and valve nominal sizes (DN ≤ 300).

Design requirements (Clause 4):

Operability across the full temperature range from the rated minimum to +65 °C.
Disc guiding designed to resist freezing and moisture deposition.
Use of inserts controlled to prevent cold flow and loss of shut‑off performance.
Special provisions for sublimating fluids (e.g., CO2) to avoid solid deposition blocking operation.
Electrical continuity requirement for flammable-service valves: ≤ 1 000 Ω at up to 28 V to prevent static build‑up.
Set pressure must not exceed the valve’s rated pressure (PR); minimum shell thickness per recognized standards.

Materials (Clause 4.3):

Metallic materials must meet ISO 21028‑1/2 for toughness at cryogenic temperatures.
Non‑metallics restricted mainly to seating/inserts and must be suitable for the rated minimum temperature.
Gas–material compatibility: oxygen compatibility per ISO 21010; hydrogen considerations per ISO 11114; restrictions on copper content for acetylene mixtures.

Qualification and testing (Clause 5):

Type approval: inspection and testing of a valve from the first production batch; unique model numbering for approved configurations.
Type tests include ambient condition operational and leakage/seat tightness testing; production testing requirements also specified.
Marking, cleanliness, sealing, set‑pressure tolerances and re‑seating pressures are defined.

Applications and who uses it

Valve manufacturers designing pilot‑operated pressure‑relief devices for cryogenic service

Cryogenic vessel and system designers (LNG, industrial gases, lab cryogenics)

Plant safety and process engineers specifying relief accessories for storage and distribution systems

Certification bodies, inspectors and procurement teams ensuring compliance with cryogenic service requirements

Practical applications include safety relief systems on cryogenic storage tanks, transfer piping, vapor recovery systems and process plant relief arrangements for gases such as nitrogen, helium, oxygen, hydrogen and CO2.

Related standards

ISO 4126‑4 (pilot operated safety valves)

ISO 21013‑1/2/3 (other parts of cryogenic pressure‑relief accessories)

ISO 21028‑1/2 (toughness at cryogenic temperatures); ISO 21010 (oxygen compatibility)

ASME B16.34, ISO 15761, EN 12516 series (valve shell strength and construction)

Keywords: ISO 21013-4, cryogenic vessels, pilot operated pressure relief valves, pressure‑relief accessories, cryogenic service, DN 300, valve testing, materials compatibility.

ISO 21013-4:2012

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who uses it

Related standards

Технические детали

BS EN ISO 21013-3:2016

Cryogenic vessels. Pressure-relief accessories for cryogenic service. Sizing and capacity determination.

ISO 4126-4:2013

Safety devices for protection against excessive pressure — Part 4: Pilot operated safety valves

BS EN ISO 21028-1:2016

Cryogenic vessels. Toughness requirements for materials at cryogenic temperature. Temperatures below -80 °C.

ISO 21010:2017

Cryogenic vessels — Gas/material compatibility

BS EN ISO 11114-5:2022

Gas cylinders. Compatibility of cylinder and valve materials with gas contents. Test methods for evaluating p…

BS EN ISO 15761:2002

Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries