What is Socket Welded Flange?
A socket welding flange consists of three main components: the flange body, the socket, and the welding end. The welding end typically features a plain or beveled design to facilitate welding with the pipe. The socket is an inwardly recessed annular groove that allows tight engagement with the protruding flange section of another pipe or equipment.
During installation, the pipe is simply inserted into the socket and secured using bolts or other fasteners. This design reduces welding workload, making it particularly suitable for applications requiring frequent disassembly.
Specification
SW Flange: DN15-DN80
Outer Diameters: 1/2 inch to 48 inch, up to 1500#
Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
Socket Weld Flange Pressure Grade：PN≤26.0MPa
SW Flange Standards
ANSI B16.5
HG20619-1997
GB/T9117.1-2000-GB/T9117.4-200
HG20597-1997
Socket Weld Flange Materials
Carbon Steel Flange: ASTM A105, 20#, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65 ,F70;
Stainless Steel Flange: ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8;
Alloy Steel Flange: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8/Ⅲ;
Socket Welded Flange Face Types
RF (Raised Face)
M&F (Male-and-Female Face)
RTJ (Ring-Type Joint)
T&G (Tongue and Groove Face)
