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Weld Neck Flanges

Weld Neck Flanges are flanges that designed to be joined to a piping system by butt welding. the WN Flange is relatively expensive because of its long neck, but is preferred for high stress applications. The neck, or hub, transmits stresses to the pipe, reducing stress concentrations at the base of the Welding-Neck flanges. The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange. The bore of the Weld-Neck flange matches the bore of the pipe, reducing turbulence and erosion.

Weld Neck Flange manufacturer pipestec supplies Weld Neck Flanges, WN Flanges, Welding-Neck Fittings in carbon steel, Stainless Steel, alloy steel, etc.

Weld Neck Flanges Product List

Weld Neck Flange, EN1092-1, PN16, DN 50, ASTM A182 F304
ST 14 WNF 04
China Weld Neck Flange manufacturer pipestec supplies Weld Neck Flange, made of ASTM A182 F304, with EN1092-1 TYPE 11B Standard, PN16 CLASS, DN 50 Size.
Golden Weld Neck Flange, ASTM A105, 4 Inch, 150, SCH 80
ST WNF 01
China Weld Neck Flange manufacturer pipestec offers RF End Golden Weld Neck Flanges made of ASTM A105, 4 Inch Size, Class 150, SCH 80, ASME B16.5 Standard.
A182 F304L Weld Neck Flange, CL150, RF, SCH 10, 24 Inch
ST 14 WNF 01
China Stainless Steel Weld Neck Flange Manufacturer pipestec Supplies A182 F304L Weld Neck Flanges, CL150, SCH 10, 24 Inch, RF Raised Face Ends, ANSI B16.5.
Duplex Stainless Steel Flange, WN, A182 S32750, 150LB
ST 14 WNF 02
China Stainless Steel Flange Manufacturer pipestec Supplies Duplex Stainless Steel Weld Neck Flange, ASTM A182 S32750, 36 Inch, 150LB, SCH XS, ANSI B16.47.
MSS-SP-44 WN Flange, RF, SCH STD, 300#, 30 Inch
ST 14 WNF 03
China Forged Weld Neck (WN) Flange Manufacturer pipestec Offers MSS-SP-44 Weld Neck Flanges, ASTM 105 Forged Steel, Raised Face, Schedule STD, 30 Inch.
Black Welding Neck Flange, ANSI B16.5, 300 LB
ST 14 WNF 04
China Black Welding Neck Flange Manufacturer pipestec Provides Black Painting Welding Neck Flanges, ASTM A105, ANSI B16.5, 300 LB, SCH STD, RF, 20 Inch.
ASTM A105 WN Flange, Golden Painting, Sch STD
ST 15 WNF 05
China ASTM A105 WN Flange Manufacturer pipestec Provides ASTM A105 Weld Neck Flanges, Golden Painting, Schedule STD, 3 Inch, 150 LB, ANSI B16.5, RF End.
Carbon Steel WN Flange, ASTM A105, 6 Inch
ST 15 WNF 06
China Carbon Steel WN Flange Manufacturer pipestec offers Carbon Steel Weld Neck Flange, ASTM A105, 6 Inch, Flanged RF Ends, Schedule 80, Black Coating.
ASME B16.5 WN Flange, ASTM A105N, 24 Inch, 600 LB
ST 15 WNF 07
China ASME B16.5 WN Flange Manufacturer pipestec offers ASME B16.5 Weld Neck Flanges, Size 24 Inch, 600 LB, Flanged RF Ends, ASTM A105N, Schedule 80.
ASTM A105 Weld Neck Flange, 12 Inch, SCH STD
ST 15 WNF 08
China ASTM A105 Weld Neck Flange Manufacturer pipestec offers ASTM A105 WN Flange, Size 12 Inch (DN300), Schedule STD, Pressure 600 LB, Flanged RF Ends.
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