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Flat welding flange is a kind of flange which is connected with vessel or pipe by fillet weld. It is an arbitrary flange. In the design, according to the integrity degree of the connection between flange ring and straight cylinder section, the integral or loose flange shall be checked respectively. There are two kinds of flange ring with neck and without neck. Compared with the welding neck flange, the flat welding flange has the advantages of simple structure and less material consumption, but its stiffness and sealing performance are not as good as those of the neck welding flange. Flat welding flange is widely used in the connection of medium and low pressure vessels and pipes.
Flat welded steel pipe flange
The flat welding flange is suitable for the pipeline system with low pressure level and no serious pressure fluctuation, vibration and vibration. The advantage of flat welding flange is that it is easy to center when welding and assembling, and the price is relatively cheap, so it has been widely used.
Product specification: DN 10-dn2000
Service pressure: pn0.25mpa, pn0.6mpa, PN1.0MPa, PN1.6MPa, PN2.5MPa, PN4.0MPa
Product category: full face plate flange (FF), raised face plate flange (RF).
It is made of stainless steel and carbon steel.
Carbon Steel Weld Neck Flange | ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80) |
Stainless Steel Weld Neck Flange | ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409 |
Alloy Steel Weld Neck Flange | ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91 |