ObsoleteGo to latest versionHG/T 21531-2014

HG 21531-1995Handholes with welding neck flanges (English PDF)

带颈对焊法兰手孔

HG 21531 | Evolution and historical versions

Std ID	Title	Status
HG/T 21531-2014	Welding neck flange handholes	Valid
HG/T 21531-2005	Welding neck flange handholes	Obsolete
HG 21531-1995	Handholes with welding neck flanges	Obsolete

HG 21531-1995 is obsolete. It has been replaced by HG/T 21531-2005. This page sells the obsolete edition, for projects and contracts that still cite it.

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Level / Type

National · Mandatory

Issue date

July 5, 1995

Implementation date

March 1, 1996

Scope

HG 21531-1995 is the English-translated version of 带颈对焊法兰手孔.

HG 21531-1995 is the Chinese industry standard "Handholes with welding neck flanges". It was issued on July 5, 1995, and took effect on March 1, 1996. It is obsolete: it has been replaced by HG/T 21531-2005.

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Document preview — HG 21531-1995

Document data

1 Document data

Sector: Chemical Industry (industry standard).

Date of issue: 1995-07-05.

Date of implementation: 1996-03-01.

Status: obsolete, replaced by HG/T 21531-2005.

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

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