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HG/T 21520-2014Slip on flange manholes with davit to vertical cover (English PDF)

垂直吊盖带颈平焊法兰人孔

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

July 9, 2014

Implementation date

November 1, 2014

Scope

HG/T 21520-2014 is the English-translated version of 垂直吊盖带颈平焊法兰人孔.

HG/T 21520-2014 — This Standard specifies the vertical lifting the lid with a neck flat welding manhole flange type, technical conditions and markers.

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Document preview — HG/T 21520-2014

National Standard of the People's Republic of China

ICS: 71.120.99
Classification: G 91
Replacing: HG/T 21520-2005

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

This Standard specifies the vertical lifting the lid with a neck flat welding manhole flange type, technical conditions and markers. This Standard applies only to the chemical, petrochemical plants and other similar devices nominal pressure PN10 ~ PN16 ve

Document data

International classification (ICS): 71.120.99.

Chinese classification (CCS): G91.

Estimated length of the Chinese original: 14,128 words.

Supersedes the earlier edition HG/T 21520-2005.

Standards quoted by this document

GB/T 41; GB/T 95; HG/T 20592-2009; HG/T 20606-2009; HG/T 20607-2009; HG/T 20613-2009; HG/T 21514

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

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