JB/T 12624-2016Globe valves and check valves for liquefied natural gas (English PDF)
液化天然气用截止阀、止回阀
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
January 15, 2016
Implementation date
June 1, 2016
Scope
JB/T 12624-2016 is the English-translated version of 液化天然气用截止阀、止回阀.
JB/T 12624-2016 is a recommended Chinese machinery industry standard for the globe valves and check valves used with liquefied natural gas.
It specifies the structural type, the technical requirements, the inspection and test methods, the inspection rules and the marking, packaging and storage of shut-off valves, lift check valves and swing check valves.
It applies to flanged and welded valves whose working medium is liquefied natural gas.
For the globe valves and the lift check valves the range is nominal pressure PN16 to PN250 and nominal size DN15 to DN400, or pressure class Class 150 to Class 1500 and nominal size NPS 1/2 to NPS 16; for the swing check valves the nominal pressure runs from PN16 to PN250 and the nominal size from DN15 to DN600.
Among the standards it quotes are GB/T 9113, GB/T 12220, GB/T 12235, GB/T 26480, GB 26640 and JB/T 12621-2016. Its classifications are J16 and 23.060.99.
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Document preview — JB/T 12624-2016
National Standard of the People's Republic of China
- ICS
- 23.060.99
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 1 Scope
- 2 Normative references
- 3 Structural type
- 4 Technical requirements
- 4.1 General
- 4.2 Face to face dimension
- 4.3 Connecting ends
- 4.4 Globe valve
- 4.5 Lift check valve
- 4.6 Swing check valve
- 4.7 Degreasing treatment
- 4.8 Materials
- 4.9 Low temperature impact test
- 4.10 Cryogenic treatment
- 4.11 Appearance quality
- 4.12 Treatment of the defects
- 4.13 Non-destructive testing
- 4.14 Performance test
- 5 Inspection and test methods
- 5.1 Inspection of the appearance
- 5.2 Dimensional inspection
- 5.3 Analysis of the composition of the material
- 5.4 Mechanical properties of the material
- 5.5 Non-destructive testing
- 5.6 Performance test at ambient temperature
- 5.7 Performance test at low temperature
- 5.8 Fugitive emission test
- 5.9 Low temperature cycling life test
- 5.10 Low temperature impact test
- 5.11 Inspection of the marking and of the nameplate
- 6 Inspection rules
- 6.1 Classification of inspection and inspection items
- 6.2 Factory inspection
- 6.3 Type test
- 7 Marking
- 8 Packaging, storage and transport
- Annex A (informative) Data sheet of the valve order contract
What this standard covers
This standard specifies the structural type, technical requirements, inspection, test methods, inspection rules, marking, packaging and storage of the cut-off valves, lifting check valves and swivel check valves for liquefied natural gas. This standard applies to the working medium for the liquefied natural gas flange and welded connection of the cut-off valve, lift check valve and swing check valve (hereinafter referred to as the valve). The nominal pressure for the stop valve and lift check valve is PN16 ~ PN250, nominal DN15 ~ DN400 and pressure class Class 150 ~ Class 1 500, nominal size NPS1/2 ~ NPS16. Swing check valve for the nominal pressure PN16 ~ PN250, nominal size DN15 ~ DN600 and pressure rating for the Clas
Document data
International classification (ICS): 23.060.99.
Chinese classification (CCS): J16.
Estimated length of the Chinese original: 13,139 words.
Standards quoted by this document
GB/T 9113; GB/T 12220; GB/T 12221; GB/T 12224; GB/T 12235; GB/T 12236; GB/T 26480; GB/T 26481; GB 26640; GB/T 28776; JB/T 7248; JB/T 7928; JB/T 12621-2016; JB/T 12622; JB/T 7927
3 Structural type
4 Technical requirements
5 Inspection and test methods
6 Inspection rules
7 Marking
8 Packaging, storage and transport
......
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 9113Integral steel pipe flanges
- GB/T 12220Industrial valves -- Marking
- GB/T 12221Metal valves - Face to face;end to end;center to face and center to end dimensions
- GB/T 12224General requirements for industrial steel valves
- GB/T 12235Steel globe valves and lift check valve for petroleum, petrochemical and allied industries
- GB/T 12236Steel swing check valve for petroleum, petrochemical and allied industries
Similar standards
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Related Standards
GB 26640-2011 — [GB/T 26640-2011] Specification for minimal thickness of the shell of valves
GB/T 12220-2015 — Industrial valves -- Marking
GB/T 12221-2005 — Metal valves -- Face to face, end to end, center to face and center to end dimensions
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JB/T 12624-2016
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