The long tapered hub provides an important reinforcement for use in several applications involving high pressure, sub-zero and / or elevated temperatures. The smooth transition from flange thickness to pipe or fitting wall thickness effected by the taper is extremely beneficial, under conditions of repeated bending, caused by line expansion or other variable forces.
This flange type will be welded to a pipe or fitting with a single full penetration, V weld (Buttweld).
Materials Carbon Steel: ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH P250GH, P280GHM 16MN, 20MN ,20# Stainless Steel: ASTM A182, F304/304L, F316/316L Types Slip On Plate Flange/Plate Flange , Slip On Hub Flange/Bossed Welding Neck Flange/WN flange/ Loose Flange/Lapped Flange /Backing Flange Blind Flange/Blank flange, Lap Joint Flange /LJ Flange Socket Weld Flange/SW Flange Threaded Flange/Screwed Flange Loose Flange/Lapped Flange Backing Flange RTJ /o-Ring Custom Flange/Special Flange Hot/Cold/Electro Gavanized Flange Standards ANSI/ASME/ASA B16.5 FLANGES, ANSI B16.47 A/B FLANGES JIS B 2220 FLANGES, KS B 1503, DIN SERIES, UNI, EN1092-1, BS4504 BS 10 TABLE D/E/F FLANGES, SANS 1123 FLANGES/SABS 1123 GOST12820-80/GOST12821-80, NFE29203/NS/AS/ISO/AWWA FLANGES Pressure &Ratings 150LBS, 300,600,900,1500,2500 ANSI, ASA B16.5 PN6 PN10 PN16 PN25 PN40 PN64-DIN/UNI PN6 PN10 PN16 PN25 PN40 PN63-EN1092-1/BS4504 PN0.6Pa, PN1.0Pa, PN1.6. PN2.5,PN4.0-GOST12820-80 PN0.6Pa, PN1.0Pa, PN1.6. PN2.5,PN4.0, PN6.3. -GOST12821-80 600kPa, 1000.1600.2500.4000.-SANS 1123 5KG, 10KG, 16KG, 20KG, 30KG, 40KG-JIS B2220/KS B1503 TABLE D, TABLE E ,TABLE F-BS 10, AS2129 CLASS D, CLASS E, CALSS F, AWWA C207 Surface Treatment Rust Prevention , Black Paint Coating or Phosphating Treatment with Black Color Varnish Paint Coating, Varnish Oil Coating, Electro Galvanizing Coating (Cold Galvanizing, Color Golden or silvery white, Coating thickness 20~30(um) Hot Dip Galvanizing Coating (Coating Thickness 200um around) Technical Forging Application Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry and general pipes connecting projects etc. Inspection Quality Control System-Well Equipments and Machinery-Well Workers and Engineers Packing Wooden Pallets or Wooden Cases or As Customers' Requirements Payment Terms L/C Or 30 % Advance By T/T and The balance Will be Paid After the copy of B/L Delivery Time 30 Days \after the Advance or the L/C After-Sales Service Orders and Products Tracking System
JIS Welding Neck Pipe Fittings Flange
Welding Neck Flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.
