Weld Neck Flange

Weld neck flange are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for flanges, the standard height is 1/16″ for weld neck flanges fewer than 400#.

For weld neck flanges of 400# and up, the standard flange raised face height is 1/4″. DESCRIPTION OF WELD NECK FLANGESis a flange that is designed to be joined to a piping system by butt welding. This kind of flange include lots of specification, Weld neck Flange is expensive because of its long neck and the cost of people to contact WN flange with pipeline or fitting, but is preferred for high-stress applications.

The necks, or hubs, transmit stresses to the pipeline. 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 flanges. The bore of the Weld-Neck flanges matches the bore of the pipeline, reducing turbulence and erosion. DESCRIPTION OF WELD NECK FLANGE

Type: WN Forged Flange

Material: Carbon steel: A105, SS400, SF440 RST37.2, S235JRG2, P250GH, C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.

Standard: ANSI, JIS, DIN, BS4504, SABS1123, EN1092-1, UNI, AS2129, GOST-12820

Size: 1/2-78 inch (DN15-DN2000)

Pressure: ANSI class 150, 300, 600, 1500, 2500, DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160

Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case Surface

Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint, Zinc, Hot dipped Galvanized.

E-catalog: Available, please visit the catalog of flange

Usage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects, etc.