Weld Neck Flanges are flanges with the wall thickness of the flange having the same dimensions of the matching pipe, the lighter the pipe is, the larger the bore, conversely, the heavier the pipe, the smaller the bore, they are normally used for high pressure, cold or hot temperature.

Size:1/2”-48”(15NB-1200NB)
Pressure ratings:class150,class300,class400,class600,class900,class1500,class2500 | PN6pn10,PN25,PN40,PN64 ect.

Application: It is widely used in petrochemical, metallurgy, power, papermaking, construction and other industries.

Materials:
Carbon Steel Welded Neck Flange: 

ASTM SA/A105(N),C22.8,ST37.2,A516 GR60/70,ASTM SA350 LF2,ASTM SA694 F42/46/52/56/60/65…
Stainless Steel Welded Neck Flange:

ASTM A182 F304/304L/316/316L…
Duplex Stainless Steel: ASTM A182 F51/F53/F55/F60…
Alloy Steel Welded Neck Flange:

ASTM A182 F1/F5/F9/F11/F22/F91…
Surface Treatment:
Yellow/Black Coating, Anti-Rust Oil

Weld neck flange is available in both raised face and flat face configuration. ASME B16.5 Welding Neck Flange 900LBS 10 Inch RF, SCH 80, A182 F304L

Weld neck flange is available in both raised face and flat face configuration. ASME B16.5 Welding Neck Flange 900LBS 10 Inch RF, SCH 80, A182 F304L

See also :

Blind Flange

Blind Flange

Lap Joint Flange

Lap Joint Flange

Plate Flange

Plate Flange

Slip on Flange

Slip on Flange

Threaded Flange

Threaded Flange

Weld Neck Flange

Weld Neck Flange