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GB/T 22653-2008Emergency shutoff valve for LG equipment (English PDF)

液化气体设备用紧急切断阀

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 23, 2008

Implementation date

July 1, 2009

Scope

GB/T 22653-2008 is the English-translated version of 液化气体设备用紧急切断阀.

GB/T 22653-2008 is the Chinese standard "Emergency shutoff valve for LG equipment".

Its scope clause reads: This standard specifies the terms and definitions, structural types, parameters, models, technical requirements, test methods, inspection rules, marking, painting and supply requirements of emergency shutoff valve for LG equipment (hereinafter referred to as shutoff valve).

This standard is applicable to emergency shutoff valve for LG equipment, of which, the nominal pressure is PN10~PN25, the nominal dimension is DN15~DN350, the working temperature is not greater than 50°C, the applicable media are LPG, liquid ammonia, liquid chlorine, liquid sulfur dioxide, propylene, propane, butane, butadiene and their mixture. Its clauses include terms and definitions.

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Document preview — GB/T 22653-2008

National Standard of the People's Republic of China

ICS: 23.060.99
Classification: J 16

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Structural Types, Parameters and Models
4.1 Structural Types
4.2 Parameters
4.3 Models
5 Technical Requirements
5.1 Maximum Working Pressure
5.2 Structural Length
5.3 Appearance
5.4 Valve Body
5.5 Spring
5.6 Hydraulic and Pneumatic Elements
5.7 Auto-shutoff Equipment of Fusible Element
5.8 Performance Requirements
5.9 Material
6 Test Methods
6.1 Shell Test
6.2 Air-tightness Test
6.3 Excess Flow Performance Test
6.4 Emergency Shutoff Performance Test
6.5 Natural Closing Test
6.6 Vibration Test
6.7 Repeated Operation Test
6.8 Fusible Element Fusion Test
6.9 Hydraulic and Pneumatic Element Tests
7 Inspection Rules
7.1 End-of-manufacturing Test
7.2 Type Test
7.3 Sampling Method
8 Marking
8.1 Marking Contents
8.2 Designation on Valve Body
8.3 Mark on Nameplate
9 Painting
10 Supply Requirements
Annex A (Normative) Vibration-resistance Performance Test Method of Emergency Shutoff Valve
Annex B (Informative) Order Contract Data Sheet for Emergency Shutoff Valve for LG Equipment

1 Scope

This standard specifies the terms and definitions, structural types, parameters, models, technical requirements, test methods, inspection rules, marking, painting and supply requirements of emergency shutoff valve for LG equipment (hereinafter referred to as shutoff valve).

2 Normative References

The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.

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GB/T 1047 Pipework Components--Definition and Selection of DN (Nominal Size) (GB/T 1047-2005, ISO 6708: 1995, MOD)

GB/T 1048 Pipework Components - Definition and Selection of PN (GB/T 1048-2005, ISO/CD 7268: 1996, MOD)

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GB/T 1239.2-1989 Cold Coiled Helical Compressions Springs - Technical Specifications (neq JIS B2707: 1987)

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GB/T 12220 General Purpose Industrial Valves - Marking (GB/T 12220-1989, idt ISO 5209: 1977)

GB/T 12221 Metal Calves--Face to Face, End to End, Center to Face and Center to End Dimensions (GB/T 12221-2005, ISO 5752: 1982, MOD)

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GB/T 12235 Steel Globe Valves and Lift Check Valve for Petroleum Petrochemical and Allied Industries (GB/T 12235-2007, BS 1873-1975(R1998), NEQ)

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3 Terms and Definitions

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Cited by

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