Standard and application of the spiral wound gasket

Metal spiral wound gasket using standard there are many HG/T20610-2009 is a commonly used standard of the Ministry of Chemical Industry series of standards under the National Development and Reform Commission (NDRC Office Industry [2007] No. 1415) and China Petroleum and Chemicalindustry Association of petrochemicalSpiral Wound Gaskets Association Division No. 20071144, organized by the China Petroleum and Chemical Engineering Survey and design Association National Chemical Equipment set Station meter technology center.
From the date of implementation of the series of standards instead of the HG 20592 ^ -20635-1997, steel pipe flanges, gaskets, fasteners.

The series of standards are revised HG 20592-v2D635-1997, steel pipe flanges, gaskets, fasteners series of standards.

This series of standard reference to EN1092-1: 2002 Flanges and their joints pipes, valves, fittings and accessories, disc flange,

PN identifies a 1: Steel flanges ASME 816.5-2003 "pipe flanges and flanged fittings" foreign advanced standards, combined with the country

The actual amendments made, including the internationally Metal Jacketed Gaskets accepted two pipe flanges, gaskets and fasteners Standard Series: PN series (European system)

And Class Series (American system)