are used to connect pipes, valves and other equipment to form a piping system. Duwa Piping can supply flanges Ex-works in 3days and the warranty time is 3 times longer than other supplier.
ANSI Flange, ASME Flange, API Flange, DIN Flange, EN10921-1 Flange, JIS/KS Flange, Gost Flange, AWWA C207 Flange.
Carbon Steel: ASTM A105.
Low-Temperature: ASTM A350 LF1 LF2 CL1/CL2, LF3 CL1/CL2.
Stainless Steel: ASTM A182 F304/304L, F316/316L, F321.
Alloy Steel: ASTM F1 F5 F9, F11, F91.
Pipeline Steel: A694 F42 F52 F60 F65, A516 Gr60, 65, 70.
Flange Face: Raised Face(RF), Flat Face(FF), Ring Type Joint(RTJ), T&G.
Flange Pressure: 150#--6000#(PN6-PN40).
Schedule: SCH40/XS, STD.