Plate welded flange (HG20593, GB / T9119, JB / T81): easily obtained, create a simple, low cost, widely used; but less rigid plate welded flange, and therefore not be used in supply and demand, flammable, chemical process piping systems and highly explosive and high vacuum degree requirements, extremely hazardous situations. Sealing surface with a flat and raised face. Plate welded flange is the most common flange, pressure has PN0.25, PN0.6, PN1.0, PN1.6, PN2.5. Welding form: plate welded flange is welded to the pipe going into the flange. Jidong pipe main products are: flanges, elbows, bends, tees, crosses, head size, diameter tube, head tube run, manholes, cover type snorkel, hemispherical dome, water trumpet tube, seat tube bracket and so on, according to clients' special custom-made drawings and samples, our products are widely used in nuclear power, thermal power, wind power, hydroelectric power, petrochemical, shipbuilding, food, pharmaceuticals, paper and printing, sewage treatment, and so on; and by the praise of our customers.