ANSI B16.5 A105 Weld Neck Flange
Followings are the definition, information and application of various types of flanges:
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.
Standard: ANSI/ASME B16.5, ANSI/ASME B16.47, BS4504, BS3293, EN 1092, DIN2631,DIN2632,DIN2633, DIN 2634, DIN2635, DIN2636, DIN2637, DIN2638, JIS B2220, SABS / SANS 1123 , GOST / ГОСТ 12821-80 Flange, MSS SP-44 FLANGE, API 6A, 6B, 6BX weld neck FLANGE, ISO 7005 Weld neck flange. NFE 29203 Weld neck flange, KS B1503 , UNI 2280-67 ,UNI 2281-67 ,UNI 2282-67 ,UNI 2283-67 , UNI 2284-67, HG20595,AS2129.
Pressure: Class 75, Class125, Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500,Class 2500,3000 PSI, 5000 PSI, 10000 PSI, 20000 PSI.
PN2.5, PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160
5K, 10K, 15K, 20K, 30K.
Carbon steel: ASTM A105, A181, ASTM A516 GR.60, GR.70, ASTM A694 F42, F46, F52, F56, F60, F65, F70, ST37, ST45.8, C22.8, S235, S235JRG2, P235GH, P245GH, P250GH, P265GH, P355GH, S355J2, 16MN, 20MN, Q235, 20#, CT20, SS400.
Stainless steel: ASTM A182 F304, F304L, F316, F316L, F321, F321H, F304H, F316H, F347H, 1.4301, 1.4306, 1.4401, 1.4404, 1.4541, 1.4571, SUS304, SUS316.
Alloy Steel: ASTM A350 LF2, CL1/CL2, ASTM A182 F5, F9, F11, F12, F22, F91.
Duplex Steel: S31803 / F51 / S32205 / F60 / 1.4462
Super Duplex: S32750 / F53 / 1.4410 / S32760 / F55 / 1.4501
Sealing face: Raised Face(RF), Flat Face(FF), Ring Type Joint(RTJ).
Flange face finishing, MSS-SP-6, such as: Stock finishing, Spiral serrated finishing, concentric serrated finishing, smooth finishing etc.
Coating: Black paint, Yellow paint, Vanish oil
Packing: Wooden case, Plywood case, Pallet.
Marking: MSS-SP-25, necessary information of flange specification, Customized marking is available.
BS EN10204 3.1 MTC, ABS, PED 97-23-EC, CE, ISO, API approved.
Water Treatment, Shipbuilding industry, sea Platform, Petrochemical & Gas industry, Power plant, Valve industry, Construction, Chemical industry, General piping system etc.