HG/T 21547-1993
Steel insert plate, backing ring, 8-word blind plate for pipeline (English Version)

Standard No.

HG/T 21547-1993

Language

Chinese, Available in English version

Release Date

1993

Published By

Professional Standard - Chemical Industry

Status

Be replaced 2017-04

Replace By

HG/T 21547-2016

Latest

HG/T 21547-2016

Scope

This standard specifies the types, sealing surface dimensions, connection dimensions, and technical requirements for steel insert plates, gasket rings, and figure-8 blind plates for pipelines. This standard is suitable for use in conjunction with the national standard "Steel Pipe Flange" (GB9113~GB9122).

HG/T 21547-1993 history

• 2016 HG/T 21547-2016 Paddle blank, Paddle spacer, Figure-8 blank for piping system
• 1993 HG/T 21547-1993 Steel insert plate, backing ring, 8-word blind plate for pipeline