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Lap Joint Flange

Lap joint flange is similar to hubbed slip-on welding flange, while the difference is that it has a stud end at the intersection between the inner bore and the flange facing, which is used to accommodate the flange pad. It is generally applied in the part of a pipeline system where quick assembly and dismantle and easy inspection are required.

Available Sizes
1"~24", DN25~DN600

Standards
ASME B16.36-2006

Raw Materials
Carbon steel: A105
Alloy steel: A182 F 1-F 2-F 5-F 9-F 10-F 91-F 92-F 122-F 911-F 11-F 12-F 21-F 22
Stainless steel: A182 304-304H-304L-304N-304LN 316-316H-316L-316N-316LN 321-321H 347-347H
Low-temperature steel: A522 A707 Grade L 1-L 2-L 3-L 4-L 5-L 6-L 7-L 8
High-performance steel: A694 F 42-F 46-F 48-F 50-F 52-F 56-F 60-F 65-F 70

Pressure Grade
American System: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500

Flange Facing
American System: Flat Face (FF), Raised Face (RF). Tongue Face (T), Groove Face (G), Female Face (F), Male Face (M), Ring Joints Face (RJ)

Producing Process
Cutting of Raw Material --- Die Forging --- Machining

Application
The flange is widely used in many areas such as power generation plant, petroleum industry, natural gas system, chemical industry, shipbuilding industry, heating system, paper-making industry, metallurgy industry, etc.

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