Lap Joint Flanges
The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange face. This radius is necessary to have the flange accommodate a lap joint stub end. Normally, a lap joint flange and a lap joint stub end are mated together is an assembly system.
Specifications:

Lap joint flange
- Size: 1/2” to 60”, DN 12mm to DN 1500mm
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- Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
- Facing: RF / RTJ
- Material:
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- Cabon steel: A105, A350 LF2
- Stainless steel: A182 F304/F304L/F316/F316L/F321
- Alloy steel: F11, F12
- Packing: plywood case and plywood pallet
Standards, Dimensions & Weight