The butt welding flange is not easy to deform, seals well, is widely used, has the corresponding rigid and elastic requirements and reasonable butt welding thinning transition, the welding joint is far from the joint surface, and the joint surface is protected from welding temperature deformation, it adopts a more complex cough flare structure, which is suitable for pipelines with large fluctuations in pressure or temperature or pipelines with high temperature, high pressure and low temperature, and is generally used for the connection of pipelines and valves with PN greater than 2.5MPa, and is also used for transporting expensive, flammable and explosive medium pipelines.
Forging, casting, and mid-plate turning
Flat welded flanges
Connection form: Single-sided welding, double-sided nut connection.
Product features Beautiful appearance, smooth surface, acid and alkali resistance, anti-corrosion, strong texture performance.
Production process: Oxygen furnace cutting, integral forging or finished product forging and cutting forming.
Processing method: high-precision CNC lathe turning, CNC radial drilling and drilling.
Product parameters
(2) Bolt hole center circle diameter: 50mm----2130mm
(3) Bolt hole diameter: 11mm-30mm
(6) Flange thickness: 12mm-58mm
(7) TUBE OUTER DIAMETER: A(17.2-2032MM) B(14-2020MM)
(8) Flange inner diameter: A(18-2036MM) B(15-2024MM)
(9) Flange theoretical weight: 0.36kg--234.6kg (DN1800)
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