A weld neck flange (WN flange) means a flange has a neck for weld with the pipe, it is easily to recognized by their long tapered neck on the flange (The neck is also called hub in the weld neck flange). The tapered neck can supply a high strength reinforcement to support flange and pipe. It means the weld neck flange is suitable to used in high pressure and extremely temperature situation.
Advantages of Weld Neck Flanges:
Flange factory of Hebei Haihao Group has 34 years professional experiences in the steel flanges production, our weld neck flanges have following advantages:
- The weld neck flange is suitable to used for high pressure, high temperature, low temperature situation because of the butt welding connection method.
- The weld neck flange has a good excellent stress distribution by its tapered neck .
- The butt welding joint can be inspected easily ,for example the radiography testing.
Those advantages make the weld neck flange of Hebei Haihao group widely used in industry application.
|Type||Weld Neck,Slip On,Socket Weld,Threaded,Lap Joint etc|
|Face||America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)
Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.
|Standard||ASME/ANSI B16.5,ASME B16.47,ASME B16.36,AWWA C207.DIN 2527,2573,2576,2631,2632,2633,2634,2635,2566,2642.EN 1092,BS 4504,JIS B2220,GOST 10820,10821 etc.|
|Material||Carbon Steel:ASTM A105,A350 LF2,SS400,P235GH,P250GH,C22.8,Q235,20#,16Mn.|
|Stainless Steel:ASTM A182 F304,F304L,F316,F316L,F321,F347,F310,F44,F51 etc.|
|Alloy Steel:ASTM A694 F42,F46,F52,F56,F60,F65,F70,A182 F5,F9,F91,F12,F11,F22 etc|
ASME B16.5 ASTM A694 GR F52 1500LB WN FLANGE PRODUCT SHOW: