Pipe flange

Pipe flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. The socket welding flange is similar to a slip-on flange except it has a bore and a counterbore dimension. Nominal Pipe Size  Outside Diameter of Flange Diameter of Raised Face Thickness of Flanges Min. Diameter of Hub Length Through Hub Bore Depth of Socket Diameter of Bolt Circle Diameter of Bolt Holes Number of Bolts Approxi-mate Weight kgs NPS O R tf X Y B1 B2 D W I n 　 1/2 90 34.9 9.6 30 14 22.2 15.8 10 60.3 15.9 4 0.42 3/4 100 42.9 11.2 38 14 27.7 20.9 11 69.9 15.9 4 0.60 1 110 50.8 12.7 49 16 34.5 26.6 13 79.4 15.9 4 0.83 1 1/4 115 63.5 14.3 59 19 43.2 35.1 14 88.9 15.9 4 1.01 1 1/2 125 73.0 15.9 65 21 49.5 40.9 16 98.4 15.9 4 1.32 2 150 92.1 17.5 78 24 61.9 52.5 17 120.7 19.1 4 2.07 2 1/2 180 104.8 20.7 90 27 74.6 62.7 19 139.7 19.1 4 3.51 3 190 127.0 22.3 108 29 90.7 77.9 21 152.4 19.1...

Socket-weld pipe flanges are typically used on smaller sizes of high pressure pipes.  These pipe flanges are attached by inserting the pipe into the socket end and applying fillet weld around the top. This allows for a smooth bore and better flow of the fluid or gas inside of the pipe.   Slip on Pipe flanges with a hub have published specifications that range from 1/2" thru 24".  Coastal Flange provides Socket Weld pipe flanges in all material grades, specifications and sizes. Nominal Pipe Size  Outside Diameter of Flange Diameter of Raised Face Thickness of Flanges Min. Diameter of Hub Length Through Hub Bore Depth of Socket Diameter of Bolt Circle Diameter of Bolt Holes Number of Bolts Approxi-mate Weight kgs NPS O R tf X Y B1 B2 D W I n 　 1/2 90 34.9 9.6 30 14 22.2 15.8 10 60.3 15.9 4 0.42 3/4 100 42.9 11.2 38 14 27.7 20.9 11 69.9 15.9 4 0.60 1 110 50.8 12.7 49 16 34.5 26.6 13 79.4 15.9 4 0.83 1 1/4 115 63.5 14.3 59 19 43.2 35.1 14 88.9 15.9 4 1.01 1...