HG/T 2138-2009
Glass lined concentric pipes (English Version)

Standard No.

HG/T 2138-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

Professional Standard - Chemical Industry

Status

Be replaced 2016-01

Replace By

HG/T 2138-2015

Latest

HG/T 2138-2022

Replace

HG/T 2138-1991

Scope

This standard specifies the type, basic parameters, dimensions and technical requirements of glass-lined concentric reducers. This standard is applicable to glass-lined concentric reducers with a nominal pressure not greater than 1.0MPa and a design temperature higher than -20°C to 200°C.

HG/T 2138-2009 Referenced Document

• GB/T 12459 Steel buttwelding pipe fittings—Types and parameter*， 2017-02-28 Update
• 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 2432 Qaulity standard of glass-lined equipment for industry
• HG/T 2105 Glass lined equipment loop flange*， 2017-11-07 Update

HG/T 2138-2009 history

• 2022 HG/T 2138-2022 Glass lined concentric reducers, eccentric reducers and reducing flanges
• 2015 HG/T 2138-2015 Glass lining concentric reducer
• 2009 HG/T 2138-2009 Glass lined concentric pipes
• 1970 HG/T 2138-1991 Glass-lined concentric reducer