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JB/T 1625-2002Welded tube holes of industrial boilers (English PDF)

工业锅炉焊接管孔

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

December 27, 2002

Implementation date

April 1, 2003

Scope

JB/T 1625-2002 is the English-translated version of 工业锅炉焊接管孔.

JB/T 1625-2002 is the Chinese standard "Welded tube holes of industrial boilers". Its scope clause reads: This standard specifies the type, opening method, dimension, manufacturing tolerance and of the welding tube holes on pressure parts of industrial boilers.

This standard is applicable to the stationary steel steam boilers of which the rated working pressure is greater than 0.04MPa but less than 3.8MPa, the rated steam output is not less than 0.1t/h and the medium is water as well as the stationary steel hot water boilers of which the rated water-delivery pressure is greater than 0.1MPa. Its clauses include type of tube holes and method for opening holes.

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Document preview — JB/T 1625-2002

National Standard of the People's Republic of China

Replacing: JB/T 1625-1993

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

Foreword
1 Scope
2 Normative References
3 Type of Tube Holes and Method for Opening Holes
4 Dimension of Tube Holes
5 Manufacturing Tolerance

1 Scope

This standard specifies the type, opening method, dimension, manufacturing tolerance and of the welding tube holes on pressure parts of industrial boilers.

2 Normative References

The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending error in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document applies.

GB/T 1804-1992 "General Tolerances-Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications"

3 Type of Tube Holes and Method for Opening Holes

3.1

The type of welding tube holes on pressure parts shall be plug-in type (Figure la)), dimple type (Figure 1b)) or straddle-type (Figure 1c)).

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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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Editions of JB/T 1625

Edition	Title	Revision	Status
JB/T 1625-2002	Welded tube holes of industrial boilers	current edition	Current
JB/T 1625-1993	Welded tube holes of industrial boilers	previous edition	Superseded

This page sells the current edition, JB/T 1625-2002. Earlier editions are listed for reference only.

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