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  • Business goals domestic industry first
What is Lap Joint Flange?

What is Lap Joint Flange?

Lap Joint(Loose) Flanges slide over the pipe and are most commonly used with Stub End Fittings.Lap Joint pipe flanges are often used for applications that require frequent dismantling.

They have all the same common dimensions as any other flange named on this page however it does not have a raised face, they used in conjunction with a “Lap Joint Stub End”.

 Lap Joint Flange

These flanges are nearly identical to a Slip On flange with the exception of a radius at the intersection of the flange face and the bore to accommodate the flanged portion of the Stub End.

Lap Joint Flange Standard:

We produce lap joint flange according to ANSI/ASME B16.5,EN1092-1,DIN,UNI standards.

Lap Joint Flange Size:

Supply Flange Dimension DN15 – DN2000 (1/2″ – 80″), Forged Flange.

Lap Joint Flange Material:

Carbon steel:  ASTM A105, A181, ASTM A516 GR.60, GR.70, ASTM A694 F42, F46, F52, F56, F60, F65, F70, ST37, ST45.8, C22.8, S235, S235JRG2, P235GH, P245GH, P250GH, P265GH, P355GH, S355J2, 16MN, 20MN, Q235, 20#, CT20, SS400.

Stainless steel:  ASTM A182 F304, F304L, F316, F316L, F321, F321H, F304H, F316H, F347H, 1.4301, 1.4306, 1.4401, 1.4404, 1.4541, 1.4571, SUS304, SUS316.

Alloy Steel:   ASTM A350 LF2, CL1/CL2, ASTM A182 F5, F9, F11, F12, F22, F91.

Duplex Steel:  S31803  /  F51  /  S32205  /  F60  /  1.4462

Super Duplex:  S32750  /  F53  /  1.4410  /  S32760  /  F55  /  1.4501

 Lap Joint Flange

Hebei Haihao group as a first class manufacturer of all kinds of flange in China,supplys a variety of steel flanges to satisfy our customers’ specifica requirements. Our products are produced strictly according to the required standard.