NB/T 35078-2016Fundamental technical requirements for piston combined pressure reducing valve (English PDF)
活塞组合式减压阀基本技术条件
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
January 7, 2016
Implementation date
June 1, 2016
Scope
NB/T 35078-2016 is the English-translated version of 活塞组合式减压阀基本技术条件.
NB/T 35078-2016 is a recommended Chinese energy industry standard setting the fundamental technical requirements for piston combined pressure reducing valves. These are the valves that hold a reduced downstream pressure by means of a piston assembly, and the standard is the reference document by which such a valve is specified and accepted.
It carries the Chinese classification K55. Its requirements rest on the general valve series, citing GB/T 1239.2, GB/T 9113, GB/T 9124, GB/T 12225, GB/T 12227, GB/T 12228, GB/T 12229, GB/T 12230, GB/T 12245, GB/T 13927, JB/T 106 and JB/T 308, with the material grades taken from GB/T 699, GB/T 1220 and GB/T 1222. Issued on 7 January 2016, it has applied since 1 June 2016.
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Document preview — NB/T 35078-2016
National Standard of the People's Republic of China
Issued by: National Energy Administration of the People's Republic of China
Contents
- Foreword
- Scope
- Normative references
- About this standard
- Classification and status
1 Foreword
NB/T 35078-2016 was issued by NEA on 7 January 2016 and has been in force since 1 June 2016.
2 Scope
This standard is a recommended Chinese energy industry standard setting the fundamental technical requirements for piston combined pressure reducing valves. These are the valves that hold a reduced downstream pressure by means of a piston assembly, and the standard is the reference document by which such a valve is specified and accepted. It carries the Chinese classification K55. Its requirements rest on the general valve series, citing GB/T 1239.2, GB/T 9113, GB/T 9124, GB/T 12225, GB/T 12227, GB/T 12228, GB/T 12229, GB/T 12230, GB/T 12245, GB/T 13927, JB/T 106 and JB/T 308, with the material grades taken from GB/T 699, GB/T 1220 and GB/T 1222.
3 Normative references
NB/T 35078-2016 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 699
GB/T 1220
GB/T 1222
GB/T 1239.2
GB/T 9124
GB/T 9113
GB/T 12225
GB/T 12227
GB/T 12228
GB/T 12229
GB/T 12230
GB/T 12245
GB/T 13927
JB/T 106
JB/T 308
4 About this standard
Issued by: NEA
English translation: about 15 pages
5 Classification and status
Prefix NB/T: recommended standard.
......
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
- GB/T 699Quality carbon structure steels
- GB/T 1220Stainless steel bars
- GB/T 1222Spring Steels
- GB/T 1239.2Cold coiled helical springs technical specifications - Part 2: Compressions spring
- GB/T 9113Integral steel pipe flanges
- GB/T 12225General purpose industrial valves - Specification of copper alloy castings
GB/T 9124
Similar standards
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NB/T 35078-2016
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