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JB/T 10507-2005Metal bellows for valves (English PDF)

阀门用金属波纹管

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

February 14, 2005

Implementation date

August 1, 2005

Scope

JB/T 10507-2005 is the English-translated version of 阀门用金属波纹管.

JB/T 10507-2005 is the Chinese standard "Metal bellows for valves". Its scope clause reads: This standard specifies the terms and definitions, classification and identification, requirements, test methods, inspection rules as well as marking and packaging of the metal bellows for valves (hereinafter referred to as bellows) and their assemblies.

This standard is applicable to bellows and their assemblies for globe and gate valves. It may be used as reference for other types of bellows for valves. This standard is not applicable to non-metallic bellows and bellows not for valves. Its clauses include terms and definitions.

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Document preview — JB/T 10507-2005

National Standard of the People's Republic of China

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

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and identification
4.1 Classification
4.2 Identification
5 Requirements
5.1 Common structure
5.2 Design
5.3 Pressure-temperature rating
5.4 Materials
5.5 Manufacture of bellows
5.6 Surface quality
5.7 Geometric dimension
5.8 Connection of valve stem, valve disc (gate) or moving parts
5.9 Cycle life
5.10 Welding of bellows
5.11 Sealing property
6 Test methods
6.1 Surface quality
6.2 Geometric dimension
6.3 Sealing inspection
6.4 Pressure test
6.5 Cycle life test
7 Inspection rules
7.1 Inspection classification
7.2 Inspection conditions
7.3 End-of-manufacturing inspection
7.4 Type inspection
7.5 Number of inspected samples
7.6 Inspection items and sequence
7.7 Acceptance criterion
8 Marking and packaging
8.1 Marking
8.2 Packaging

1 Scope

This standard specifies the terms and definitions, classification and identification, requirements, test methods, inspection rules as well as marking and packaging of the metal bellows for valves (hereinafter referred to as bellows) and their assemblies.

This standard is applicable to bellows and their assemblies for globe and gate valves. It may be used as reference for other types of bellows for valves.

This standard is not applicable to non-metallic bellows and bellows not for valves.

2 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of this national standard. For dated references, subsequent amendments (excluding corrections) to, 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 applies.

GB/T 1047-1995 Nominal size for pipe components

GB/T 1048-1990 Nominal pressure for pipe components

GB/T 1220-1992 Stainless steel bars

GB/T 3089-1982 Thinnest-wall seamless tubes of stainless and acid-resistance steel

GB/T 3280-1992 Cold rolled stainless steel sheets and plate

GB/T 4237-1992 Hot rolled stainless steel sheets and plates

GB/T 4239-1991 Cold rolled stainless steel and heat-resisting steel strips

GB/T 14992-1994 Types of heat-resisting superalloys

GB/T 15010-1994 Cold-rolled sheets of corrosion-resisting

JB/T 6169-1992 Metal bellows

JB/T 9092-1999 Valve inspection and testing

3 Terms and definitions

For the purposes of this standard, the following terms and definitions apply.

3.1 bellows

thin-walled elastic shell part with many transverse convolutions

3.2 bellows assemblies

accessories composed of two or more parts (one of them is the bellows that connected in series by one or more ones), flanges etc.

3.3 hydroformed bellows

bellows made by hydraulic forming method that placing the metal tube in a mold, applying hydraulic pressure from inside, and axially compressing the metal tube simultaneously

3.4 mechanically formed bellows

bellows made by mechanically forming method, convolutions of bellows are individually and continuously processed and formed on the metal tube with rotating tools, rubber mould or metal mould

3.5 welded bellows

bellows made by welding method, outer and inner edges of a plurality of annular elastic metal diaphragms are alternately welded together to make bellows […]

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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.

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