Welding neck flange

Welding neck flange

China Welding Neck Flange Manufacturer Datang Offers Weld Neck Flange, WN Flange for high stress applications in Oil, Gas, Offshore, Water, Power etc.

  • Min.Order Quantity: 1 Piece
  • Supply Ability: 2000 Tons / Month
  • Port: Tianjin port
  • Delivery Detail: 15-20 days
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Product Details

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.

flange

Welding neck flange description

Type flange
Material Alloy steel (ASTM A234 WP12/WP11/WP22/WP5/WP9/WP91)< /br>
Stainless steel (ASTM A403 WP304/WP304L/WP316/WP316L)< /br>
Carbon steel (ASTM A234WPS, A234WPC, A420 WPL6), St45.8 A105 A106 STG42)
Standard ANSI, B16.9, ASME, DIN2650, 2615, 2616, 2617, JIS B2311, 2312, 2313, EN 10253-11, EN10253-2
Type LR 30, 45, 60, 90, 180 degree< /br>
SR 30, 45, 60, 90, 180 degree< /br>
1.0D, 1.5D, 2.0D, 2.5D, 3D, 4D, 5D, 6D, 7D-40D
Thickness SCH5 , SCH10, SCH20, SCH30, SCH STD ,SCH40, SCH60, SCH XS ,SCH80, SCH100, SCH120, SCH140, SCH160, XXS
Size 1/2-80 inch (DN15-DN2000)
Surface treatment Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,
Hot dipped Galvanized.
Inspection Factory in-house self check or Third Party inspection
Packing Wooden case, pallet or as customers’ requirement
Applications Petroleum,chemical,power,gas,metallurgy, shipbuilding, construction, etc
Heat Treatment Normalizing, Annealing, Quenching+Tempering
Payment L/C  T/T
Why choose us?
Certifications
Blind flange Certifications
Flange Production Process
Flange production process
Quality Assurance
Blind flange Quality Assurance
Packing & Shiping
Blind Flange transport
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