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.
Our weld neck flanges feature high strength,good toughness,and high reistance to corrosion,high pressure and temperature.The raw materials of them come into carbon steel,stainless steel,alloy steel,low temperature steel and high performance steel.Also,we can provide customized flanges according to customers'requirements.
Weld Neck Flange: 3/8"～160"
American Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500
European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400
Flange Facin Types
American Series:Flat Face (FF), Raised face (RF), groove (G), femaie(F), ring joints face(RJ)
Material: ASTM A105,20#
Surface treatment: Transparent oil, rust-proof black oil or hot galvanized.
Payment:T/T OR L/C.
Major Products: Seamless pipes,Elbow, Reducer, Tee, Pipe Cap, Flange and etc...
Special design available All the production process are made according to ISO9001:2000 strictly.