Cangzhou Bohai Pipe Fittings Co., Ltd. 20 # flange welded flange lap Flanges: in fact, is exactly the same lap sliding flange flange flange Marine # 20, unless it is the race between holes and flange A radius. This is necessary to accommodate the radius of the overlapping flange stub end. Typically 20 # flange manufacturers, lap and lap at the end of the stub mating flanges together to assemble the system. The socket welding flange is a similar sliding flange produce 20 # flange, unless it has a hole and anti-hole size. Counter bore little beer than match OD pipe flange so that the pipe is inserted into a similar sliding flange. In the smaller hole diameter is the same as the ID of the same matching pipe. Limitation is built into the hole, as a shoulder sleeve designed for pipe stays at the bottom. This eliminates any traffic restrictions in the use of socket welding flanges. Flange Standard: HG20592-2009 (PN series) \ HG20615-2009 (Calss series) Cangzhou Bohai Pipe Co., Ltd. 20 # flange threaded flange threaded flange nominal diameter: DN8 ~ DN100 Working Pressure: 1.0 ~ 2.5 (MPa ) threaded flange plate material: stainless steel, carbon steel, alloy steel. Threaded flange Uses: For fire protection, gas, hot water, air conditioning, air pipe, tubing, gauges, hydraulic pipes and other industrial and civilian pipe thread locking and sealing flange welded # 20 | Qingdao 20 # flange | Cangzhou Bohai Sea by Cangzhou Bohai Pipe Fittings Limited. Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) strong, credible, and other industries in Hebei Cangzhou tee accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Cangzhou Bohai and you hand into the brilliant, for a better future!