HG/T 20627-2009
Non-metallic flat gaskets for use with steel pipe flanges(Class designated) (English Version)

Standard No.

HG/T 20627-2009

Language

Chinese, Available in English version

Release Date

2009

Published By

Professional Standard - Chemical Industry

Latest

HG/T 20627-2009

Replace

HG 20629-1997 HG 20627-1997

Scope

This standard specifies the type, size and technical requirements for non-metallic flat gaskets (with or without inserts) for steel pipe flanges (Class series). This standard applies to non-metallic flat gaskets for steel pipe flanges with nominal pressures Class150~(PN20)~Class600(PN110) specified in HG/T 20615 and HG/T 20623.

HG/T 20627-2009 Referenced Document

• GB/T 3280 Cold rolled stainless steel plate, sheet and strip*， 2015-09-11 Update
• GB/T 3985 Comoresssed asbentos fibre jointing
• GB/T 528 Rubber,vulcanized or thermoplastic.Determination of tensile stress-strain properties*， 2009-04-24 Update
• GB/T 539 Oil-resisting compressed asbestos fibre jointing
• HG/T 20615 Steel pipe flanges(Class designated)
• HG/T 20623 Large diameter steel pipe flanges(Class designated)
• HG/T 20635 Specification for selection of steel pipe flanges,gaskets and bolting(Class designated)
• JB/T 6613 The classification,code and sign of flexible graphite sheets/strip
• JB/T 6628 Reinforced flexible graphite (sheets) gaskets*， 2016-01-15 Update
• JB/T 7758.2 Specifications of flexible graphite sheets
• QB/T 3625-1999 Polytetrafluoroethylene plate

HG/T 20627-2009 history

• 2009 HG/T 20627-2009 Non-metallic flat gaskets for use with steel pipe flanges(Class designated)
• 1997 HG 20629-1997 Flexible graphite composite gaskets for steel pipe flanges (American system)

HG/T 20627-2009 Non-metallic flat gaskets for use with steel pipe flanges(Class designated) has been changed from HG 20629-1997 Flexible graphite composite gaskets for steel pipe flanges (American system).

HG/T 20627-2009 Non-metallic flat gaskets for use with steel pipe flanges(Class designated) has been changed from HG 20627-1997 Non-metallic flat gaskets for steel pipe flanges (American system).

HG/T 20627-2009 Non-metallic flat gaskets for use with steel pipe flanges(Class designated) has been changed from HG 20627-1997 Non-metallic flat gaskets for steel pipe flanges (American system).

HG/T 20627-2009 Non-metallic flat gaskets for use with steel pipe flanges(Class designated) has been changed from HG 20629-1997 Flexible graphite composite gaskets for steel pipe flanges (American system).