What are the standards for valve flanges?

The flange used for the valve is a pipe flange

The flange is mainly divided into two systems: the European system and the American system. The flange standards of various countries and ISO organizations have basically been derived from this revision.

The impact is relatively wide, the more commonly used are European Union standards, American standards, Chinese national standards, Chinese Ministry of Chemical Industry standards, Chinese Ministry of Machinery standards, Chinese petrochemical standards, ISO standards, Australian standards, Japanese standards, and so on.

EU Standard Main Standard Number:

EN 1092-1-2007 Flanges and their connections. Round flanges for pipes, valves, fittings and accessories marked with PN. Part 1: Steel flanges

EN 1092-2-1997 Flanges and their connections-Round flanges for pipes, valves, fittings and accessories marked PN-Part 2: Cast iron flanges

EN 1092-3-2003 Flanges and their connections. Round flanges for pipes, valves, fittings and accessories marked with PN. Part 3: Copper alloy flanges

EN 1092-4-2002 Flanges and their connections. Round flanges for pipes, valves, fittings and accessories marked with PN. Part 4: Aluminum alloy flanges

EN 1759-1-2000 Flanges and their connections. Round flanges for pipes, valves, fittings and accessories marked by C lass. Part 1: Steel flanges, NPS 1/2 to 24

EN 1759-3-2003 Flanges and their connections-Circular flanges for pipes, valves, fittings and accessories marked with C lass-Part 3: Copper alloy flanges

EN 1759-4-2003 Flanges and their connections-Circular flanges for pipes, valves, fittings and accessories marked by C lass-Part 4: Aluminum alloy flanges

American Pipe Flange Standard

ASME B1615-2009 pipe flanges and flange fittings

ASM E B16147-2006 Large diameter steel pipe flange

MSS SP-44-2005 steel pipe flange

API 605-1988 large diameter carbon steel flange

ASME B1611-2005 grey cast iron pipe flanges and flange fittings

AWWA C207-2001 steel pipe flanges for water supply systems

4 ～ 144 in1 (100 ～ 3 600mm)

ASM E B16124-2001 cast copper alloy pipe flanges and flange fittings

ASM E B16142-2006 Ductile iron pipe flanges and flange fittings

ISO Standard

ISO / FD IS 7005-1-2007 metal flanges part 1 for

Industry and

Steel pipe method for general piping system

Blue

ISO 7005-2-1988 metal flanges

2

Points cast iron flange

ISO 7005-3-1988 metal flanges

3 part copper alloy and synthetic material flange

Chinese standards

GB / T 9112 ～ 9124-2000 Steel pipe flange (new standard has been revised for approval)

GB / T 13402-1992 Large diameter carbon steel pipe flange (new standard has been revised for approval)

HG / T 20592-2009 steel pipe flange (PN series)

HG / T 20615-2009 Steel Pipe Flange (Class Series)

SH 3406-1996 Petrochemical

Industrial steel pipe flange

JB / T 74 ～ 86-1994 Steel pipe method

Blue

GB / T 17241-1998 cast iron pipe

Flange

GB / T 15530-1995 copper

Alloy flange

And marine pipe flanges

Steel flange GB / T 2504-1989 Marine steel flange (quad)

GB / T

2506-2005 marine welded steel flange (quad)

GB / T 2508-1989 Marine welding steel ring loose sleeve steel flange (quad)

GB / T 4450-1995 marine blind steel flange

GB / T 10745-1989 Marine flange type (quad)

GB / T 10746-1989 marine butt welded steel flanges (quad)

GB / T 10747-1989 Marine butt-welded steel ring loose sleeve steel flange

GB / T 10751 Marine Welded Steel Flange

Steel flange GB / T 2503-1989 Marine cast iron flange (quad)

GB / T 10750-1989 Marine flat cast iron and cast steel flanges

Copper flange GB / T 2505-1989 Marine cast copper flange (quad)

GB / T 2507-1989 Marine welding copper flange (quad)

GB / T 10748-1989 Marine welding copper ring loose sleeve steel flange (quad)

GB / T 10749-1989 Marine copper tube flanged loose sleeve steel flange (quad)