HG/T 2140-2015
Glass lining reducing flange (English Version)

Standard No.

HG/T 2140-2015

Language

Chinese, Available in English version

Release Date

2015

Published By

Professional Standard - Chemical Industry

Status

Be replaced 2023-04

Replace By

HG/T 2138-2022

Latest

HG/T 2138-2022

Replace

HG/T 2140-2009

Scope

This standard specifies the type, basic parameters and main dimensions of glass-lined reducing flanges, technical requirements, factory documents, packaging, transportation and storage. This standard is applicable to glass-lined reducing flanges whose nominal pressure is not greater than PN10 and whose design temperature is higher than -20℃ to 200℃.

HG/T 2140-2015 Referenced Document

• GB 25025 Specification of glass-lined equipment for industry
• GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
• GB/T 5782 Hexagon head bolts*， 2016-02-24 Update
• GB/T 6170 Hexagon nuts,style 1*， 2015-12-31 Update
• HG/T 20592 Steel pipe flanges(PN designated)

HG/T 2140-2015 history

• 2022 HG/T 2138-2022 Glass lined concentric reducers, eccentric reducers and reducing flanges
• 2015 HG/T 2140-2015 Glass lining reducing flange
• 2009 HG/T 2140-2009 Glass lined flanged tapers
• 1970 HG/T 2140-1991 Glass-lined reducing flange

HG/T 2140-2015 Glass lining reducing flange was changed to HG/T 2138-2022 Glass lined concentric reducers, eccentric reducers and reducing flanges.