The appearance of ASTM A105, A182 socket welded flange is like slip-on flange. The main difference is that socket welded flange has bore which can match a specific pipe inside-diameter. The back side of flange is used to socket to the pipe outside diameter.
The diameter of the smaller core is equivalent to the inner diameter of matching pipe. The flange has a restriction at the bottom of the bore which used as a shoulder so that the pipe can rest on. The structure has not limitation for flow when using socket welded flange. ASTM A105, A182 socket welded flange is mainly used for pipe having small sizes and high pressure.
Materials
Carbon steel: ASTM A105, A350 LF1, LF2, A694 F42, F46, F48
Stainless steel: ASTM A182 F304,304L, 1Cr18Ni9Ti, 0Cr18Ni9Ti
Alloy steel: ASTM A182, A182 F11, A182 F12
Standard: ASME B16.47, B16.5, ANSI B16.5, API 600
Parameter
Nominal diameter: DN15-600mm
Nominal pressure: Class 150-1500LB
Flanging face: flat face (FF)
Dimensions
Flanging face |
ANSI B16.5 |
||||
150LB |
300LB |
600LB |
900LB |
1500LB |
|
Flat face (FF) |
DN20-400mm |
DN15-600mm |