Blind Flange
Blind Flange
The Blind Flange is used at the end and to close the piping systems and pressure vessel openings. It is commonly used in petrochemical, Piping engineering and water services. It is sometimes customized or machined to suitable for threaded reduction or welded reduction. Blind flange is typically provided with a raised face(RF), flat face(FF), or ring type joint face(RTJ). When a raised face is necessary for blind flange, the standard height is 1/16" for blind flanges under 400#. For blind flange of 400# and up, the standard blind flange raised face height is 1/4".
Blind flange manufacturer Duwa Piping can supply the blind flange in all sizes, materials and specifications strictly acc. to the design standard.
Specifications:
Size: 1/2" to 96".
Flange Face: Raised Face(RF), Flat Face(FF), Ring Type Joint(RTJ), T&G.
Flange Pressure: 150#--6000#(PN6-PN40).
Schedule: SCH40/XS, STD.
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.
Products List
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 TS-1
Duwa Piping supply carbon steel ,stainless steel and alloy steel tubesheet. Size 10inch-80inch, can be customized to customer drawing
DW BL-18
DW BL-20
China ASME B16.5 RTJ Blind Flange Manufacturer DUWA Provides ASTM A105N Blind Flanges, Ring Type Joint Face, Class 1500, ANSI Standard, Size 10 Inch.
DW BL-14
Duwa Piping specializes in the production of duplex stainless steel A182 F53(UNS32750) Blind flange,we can produce according to ASTM B16.5 ,EN1092-1,JIS,DIN standard.Flange types including Weld Neck,Slip On,Thread ,Socket Weld and Blind.
Pressure from 150LB to 2500LB.
Size 1/2inch -60inch
DW BF-13
China ASTM A182 Stainless Steel Blind Flange Manufacturer DUWA Provides ANSI B16.47A SS ASTM A182 F304 Blind Flanges, 40 Inch, 150LB, Flat Face.
DW BF-12
China Flanged Blind Flange Manufacturer: RTJ Spacer & Blind Flange, 18 Inch (450NB), 600LB, Inconel 600 B564 UNS NO 8825, ASME B16.48, NACE MR-01-75.
DW BF-11
China API Blind Flange Manufacturer DUWA PIPING Offers API 605 Blind Flanges, ASTM A694 F42/F46/F48/F50/F52/F56/F60/F65/F70, RF, 300LB (PN50), DN15-DN600.