Type: Weld Neck Flange
Materials:
  ASTM A105
  A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2
  A516.60
  A694 (F42, F46, F48, F50, F52, F56, F60, F65, F70)
  A182 F304/304L, F316/316L, F316H, F310, F321
  A182 F11, F22,
Standards: API, ANSI, BS, JIS, UNI, MSS and SP
Pressure: ANSI class 150 to 2,500
Size: 1/2 to 56 inches (DN 15 to DN 1,400 mm)
Used in:  Oil, Offshore, Water, Ship, Natural Gas, Power, Pipe Projects etc.

WELD NECK FLANGES are flanges that 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 cost of people for contact WN flange with pipeline or fitting, but is preferred for high stress applications. The necks, or hubs, transmits 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 flange. The bore of Weld-Neck flange matches bore of the pipeline, reducing turbulence and erosion.

Type: Welding Neck 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-catalogue: Available , please visit catalogue of flange

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