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JB/T 12002-2014Steam Turbine Extraction Check Valve (English PDF)

汽轮机用抽汽止回阀

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

July 9, 2014

Implementation date

November 1, 2014

Scope

JB/T 12002-2014 is the English-translated version of 汽轮机用抽汽止回阀.

The recommended standard JB/T 12002-2014 deals with the extraction check valve of a steam turbine.

It describes the typical structure and the control principles of the extraction steam valve system on an extraction turbine, and then sets the technical requirements, the material requirements, the testing and inspection, the inspection rules, and the provisions on protection, marking, packaging and storage.

It belongs to the Chinese machinery industry series and carries the classification J16 and the international classification 23.060.50. Among the documents it quotes are GB/T 228.1, GB/T 699, GB/T 1220, GB/T 3766, GB/T 9113, GB/T 12235, GB/T 13927-2008, JB/T 3595 and JB/T 6617. Issued on 9 July 2014, it has applied since 1 November 2014.

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Document preview — JB/T 12002-2014

National Standard of the People's Republic of China

ICS: 23.060.50

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Foreword
Scope
Normative references
About this standard
Classification and status

1 Foreword

JB/T 12002-2014 was issued by MIIT on 9 July 2014 and has been in force since 1 November 2014.

2 Scope

The recommended standard JB/T 12002-2014 deals with the extraction check valve of a steam turbine. It describes the typical structure and the control principles of the extraction steam valve system on an extraction turbine, and then sets the technical requirements, the material requirements, the testing and inspection, the inspection rules, and the provisions on protection, marking, packaging and storage. It belongs to the Chinese machinery industry series and carries the classification J16 and the international classification 23.060.50. Among the documents it quotes are GB/T 228.1, GB/T 699, GB/T 1220, GB/T 3766, GB/T 9113, GB/T 12235, GB/T 13927-2008, JB/T 3595 and JB/T 6617.

3 Normative references

JB/T 12002-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 228.1

GB/T 699

GB/T 1047

GB/T 1048

GB/T 1220

GB/T 1222

GB/T 3766

GB/T 7932

GB/T 9113

GB/T 12220

GB/T 12221

GB/T 12229

GB/T 12235

GB/T 12236

GB/T 13927-2008

JB/T 3595

JB/T 5263

JB/T 6439-2008 — Magnetic particle examination of pressure-retaining parts of valves

JB/T 6440-2008 — Radiographic examination of pressure-retaining steel castings for valves

JB/T 6617

JB/T 6902-2008 — Liquid penetrant examination methods for valves

4 About this standard

Issued by: MIIT

English translation: about 15 pages

5 Classification and status

International classification (ICS): 23.060.50

Prefix JB/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 12235-2025|GB/T 12236-2025|NB/T 20168-2012|GB/T 1853-2008|JB/T 7025-2018|JB/T 3073.1-2016

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