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A few systems of standard of flange of canal of commonly used international and
From;    Author:Stand originally
, a few systems of standard of flange of canal of commonly used international and standard of flange of our country canal

1, flange join or flange connect, it is to point to reach bolt by flange, spacer 3 person mutual join regards a group of combination as sealed structure can break link, be in charge of

Path flange fastens the flange that the tubing in pointing to pipeline unit uses, use on equipment to fasten the flange of imports and exports that points to equipment.

2, a few individual departments that flange level runs on international

1) European flange system: German DIN (include Russia)

Pressure of A, nominal: 0.1, 0.25, 0.6, 1, 1.6, 2.5, 4, 6.4, 10, 16, 25, 32, 40, mpa

B, fair calculate a diameter: 15~600mm

The structural type of C, flange: Pine of annulus of type of board of flat position welding, flat position welding covers type, coil Bian Song is covered type, right solder coils Bian Song is covered type, right solder annulus pine is covered type, right type of solder type, the threaded coupling that take a neck, whole type and flange are built

Sealing surface of D, flange has: Face of join of annulus of face of chamfer of plane, concave side, roughness, tenon, balata, lens face and diaphragm solder side

E, Russia is in charge of flange to record likeness of standard and German DIN standard together at the OCT that released 1980, chase after no longer narrate

2) America flange system: American ANSIB16.5 " pipe fitting of steeliness canal flange and flange "

Pressure of A, nominal: 150psi (2.0Mpa) , 300psi (5.0Mpa) , 400psi (6.8Mpa) , 600psi (10.0Mpa) , 900psi (15.0Mpa) , 1500psi (25.0Mpa) , 2500psi (42.0Mpa) ,

B, fair calculate a diameter: 6~4000mm

The structural type of C, flange: Solder, bear insert solder, threaded coupling, pine to cover, reach flange to solder lid

Sealing surface of D, flange: Face of concave side, roughness, tenon chamfer, ferrule join face

3) Japanese JIS is in charge of flange: Use at public project only commonly in petro-chemical device, affect in the world lesser, did not form independent system in the world.

3, GB of system of standard of state of flange of canal of our country steeliness

1) nominal pressure: 0.25Mpa~42.0Mpa

A, series 1: PN1.0, PN1.6, PN2.0, PN5.0, PN10.0, PN15.0, PN25.0, PN42 (advocate series)

B, series 2: PN0.25, PN0.6, PN2.5, PN4.0

Among them PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0 in all the European flange system that the department belongs to the flange dimension of 6 grade to be a delegate with German flange, the others is America flange system of the representing for American flange.

In GB standard, the nominal pressure step that is subject to European flange system is the biggest for 4Mpa, the nominal pressure class that is subject to America flange system most greatly 42Mpa.

2) nominal opens way: 10mm~4000mm

3) the configuration of flange:

Integral flange

Unit flange

A, whorl flange

B, solder flange is opposite solder flange

Neck of belt of flange of the flat position welding that take a neck bear the flange that insert solder flange of board type flat position welding
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