Flanges

The flanges 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.
Standard:
ANSI Flange, ASME Flange, API Flange, DIN Flange, EN10921-1 Flange, JIS/KS Flange, Gost Flange, AWWA C207 Flange.
Flange Material:
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.
 

Products List

DW WNF-13

Chinese ASTM A105 Weld Neck Flange Manufacturer Provides ASTM A105 Weld Neck Flange, ASME B16.5, Size 10IN, Pressure 150 LB, Wall Thickness SCH STD.

DW BF-5

China ANSI B16.47 Blind Flange manufacturer Duwa Piping provides ANSI B16.47 Blind Flange with material Carbon Steel,RF face, Size from 24 Inch to 92 Inch.

DW-BF-2

China RTJ Blind Flange Manufacturer Duwa Offers RTJ Blind Flange, ASTM A105, ASTM A350 LF1/LF2, ASME B16.5, CL150, 300, 900, 1500, 1/2-90 Inch.

DW-WNF-1

China Raised Face Weld Neck Flange Manufacturer Duwa Offers C.S A105 Weld Neck Flange, Raised Face, ASME B16.5, CL150-1500, SCH-STD, 1/2-90 Inch.

DW SOF-21

CHINA Flange Manufacturer DUWA PIPING 1INCH 300LB SLIP ON A182 F316L flange,Ex works in 5 days.

DW SOF-20

China flange manufacturer DUWA PIPING specialize in PE coated,galvanized flanges and fittings(elbow,reducer,tee,cap,coupling,nipple,plug),Our

DW SOF-19

China pipeline manufacturer DUWA PIPING specialize in PE/Epoxy/PEX coated flanges and fittings(elbow,reducer,tee,cap,coupling,nipple,plug),size 1inch to 24inch

DW SOF-18

China pipeline manufacturer DUWA PIPING specialize in stainless steel flanges and fittings(elbow,reducer,tee,cap,coupling,nipple,plug),

DW-SOF-17

CHINA DUWA PIPING 250NB 150LBS SLIP ON A182 F310S flange,we have 15% market share in Australia.