Lap Joint Flange

Lap joint flange consist of two components, a stub end, and a loose backing flange. Stub end is butt welded to the pipe and backing flange freely move over the pipe. Lap flange is almost identical to the slip on flange, but has a radius at the intersection of the hole and the flange surface. This radius is necessary so that the flange accommodates the end of a joint stub end. Usually, a lap joint flange and a lap joint stub are an assembly system.
Standards: ANSI B16.5, ASME, AWWA, DIN, GOST, JIS2220, BS4504
Size:1/2” to 60”, DN15 to DN1500
Pressure Class: Class150 to Class600; PN6 to PN40
Sealing Face: RF, MFM, TG

Material of Lap Joint Flange:
Carbon Steel: ASTM A105/A105N, 350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65
Stainless steel: A182 F304/F304L/F316/F316L/F321
Alloy steel: ASTM A182 F1, F5, F9, F11, F22, F91
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We're one of professional lap joint flange manufacturers and suppliers in China, supplying quality lap joint flange with various dimensions. Should you be interested in it, welcome to contact us.