Socket Welding Flange
Grid: DN25-DN100, 1 "-4"
Body material: SUS304,SUS316L
Form of connection: welding, clamps, threads
Sealing ring material: EPDM, FPM, SI
Surface treatment: Ra ≤ 0.8μm
Socket welding flanges are flanges that are inserted into the flange ring ladder at the end of the pipe and welded at the end and outside of the pipe. There are two kinds with and without neck. The neck pipe flange has good rigidity, small welding deformation and good sealing property. It can be used in the case of pressure 1.0~10.0MPa. Container type B flange is also a socket welding flange for high sealing requirements. In design, socket welding flange can be checked according to integral flange.
Grid: DN25-DN100, 1 "-4"
Body material: SUS304,SUS316L
Form of connection: welding, clamps, threads
Sealing ring material: EPDM, FPM, SI
Surface treatment: Ra ≤ 0. 8 μ m
Seal form:
Protruded (RF), concave and convex (MFM), tenon groove (TG), ring connection (RJ)
Material:Carbon Steel (Carbon Steel): ASTM A105C20 #Con Q235C16Mn, ASTM A350 LF1, LF2
CL1/CL2、LF3CL1/CL2、ASTM A 694 F42、F46、F48、F50、F52、F56、F60、F65、F70；
Stainless steel (Stainess Steel): ASTM A182 F304304L, F316316L, 1Cr18Ni9Ti,
0Cr18Ni9Ti,321,18-8；
Alloy steel (Alloy Steel): ASTM A182 F1, F5a, F9, F11, F12, F22, F91A182F12,
A182F111 / 16MnRU Cr5MoO12Cr1MoVN 15CrMoO12Cr2Mo1A335P22A335P22A45.8 / Ⅲ;
Manufacturing standards:
ISO,IDF,DIN, 3A ,SMS
ANSI B16.5、HG20619-1997、GB/T9117.1-2000-GB/T9117.4-200、HG20597-1997
Production process:
Professional integral forging, forging manufacturing, etc.
Mode of processing:
High precision NC lathe turning, common lathe finishing, argon arc welding and so on
Application range of steel pipe flanges in European system
Sealing surface form
nominal pressure PN/MPa
(bar)
1.0
(10)
1.6
(16)
2.5
(25)
4.0
(40)
6.3
（63）
10.0
（100）
Facet (RF)
DN10-50
Concave and convex (MFM)
Mortise surface (TG)
Application range of Steel Pipe Flange of American system
Sealing surface form
nominal pressure PN（MPa)
(Class)
2.0
Class 150
5.0
Class 300
11.0
Class 600
15.0
Class 900
26.0
Class 1500
Facet (RF)
DN 15-80
(1/2''-3'')
DN15-80
(1/2''-2.1/2'')
Concave and convex (MFM)
DN15-80
（1/2''-3'')
Mortise surface (TG)
Ring connection surface (RJ)
DN25-80
(1''-3'')
Scope of application:
Boiler pressure vessel, Petroleum, Chemical Industry, Shipbuilding, Pharmaceutical, Metallurgy, Machinery, stamping Bend Food, etc.
Socket welding flange: usually used in the pipe with PN ≤ 10.0MPA / DN ≤ 40;
Flange
Socket Weld FlangeSocket Welding Flange
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