... P250GH, A105/SS400. Size: DN15-DN2500. ASTM a182 f316l flanges The specification is as follows:1-American Standard:ANSI B ... etc.;3-British Standard:BS4504, NP16, NP25, NP40, BS10, TABLE D, TABLE E, TABLE H, BS10, BS4504, SAN1123, 1000/3, 1600/3, 2500 ... TO 80(DN2000;)Type: Welding Neck Flanges, Slip-on Flanges, Blind Flanges, Threaded Flanges, Lap-Joint Flanges, Socket Welding Flanges;OD Size: 1/2 inch - ...