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JB/T 4702-2000Type B slip-on welding flanges (English PDF)

乙型平焊法兰

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

April 24, 2000

Implementation date

September 30, 2000

Scope

JB/T 4702-2000 is the English-translated version of 乙型平焊法兰.

JB/T 4702-2000 is the Chinese machinery industry standard covering type B slip-on welding flanges. It was issued on 24 April 2000 and has been in force since 30 September 2000, as a first edition.

The document is under the responsibility of the Ministry of Industry and Information Technology. This page is published from the official record of the 2000 edition.

The figures, limits and tables the standard contains are those of the document itself, delivered in full with the English translation.

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Document preview — JB/T 4702-2000

National Standard of the People's Republic of China

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

[Preview only]
1 Scope
2 Normative references
3 Terms and definitions
3.1 Type
3.2 Basic parameters
4 Types and basic parameters
4.1 Types
4.2 Model designation
4.3 Nominal operating conditions
4.4 Safety and hygiene
4.5 Welding
4.6 Bridge (After crane operation mechanism assembled)
4.7 Assembly
4.8 Electrical control equipment
4.9 Steel pretreatment and painting
5 Technical requirements
5.1 General requirements
5.2 Safety requirements
5.3 Cold and hot working forming
5.4 Rated load test
5.5 Whole machine noise test
5.6 Static rigidity test
5.7 Dynamic load test
5.8 Crane span deviation
5.9 Diagonal difference of bridge
6 Test methods
6.1 Exit-factory inspection
6.2 Type inspection
7 Inspection rules
7.1 Marking
7.2 Packaging, transportation and storage
7.3 Transportation
7.4 Storage
8 Marking, packaging, transportation and storage
9 标志和标签 9 Marking and labeling

1 Foreword

JB/T 4702-2000 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 24 April 2000 and has been in force since 30 September 2000.

The JB/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.

The document runs to 15 pages in English translation.

2 Scope Preview

JB/T 4702-2000 carries no ICS number and no Chinese Standard Classification code.

This catalogue holds 21,922 other JB/T standards.

Of the 5,298 JB/T standards that do carry an ICS number, 1,460 (28%) fall under ICS 25, in the field of manufacturing engineering.

3 About this standard

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

English translation: about 15 pages

4 Related standards

Standards on related subjects:

GB/T 5100-2020 — Welded steel gas cylinders

GB/T 5099.3-2017 — Seamless steel gas cylinders -- Part 3: Normalized cylinders

JB/T 4711-2003 — Coating and transport packaging of pressure vessels

5 Classification and status

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.

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