PL flange manufacturers forged flanges are invented and produced on the basis of cast steel flanges, and their strength is much higher than that of cast steel flanges. The parts that connect pipes to each other are connected to the pipe ends. Butt welding flange is a type of pipe fitting, which refers to a flange with a neck and a round pipe transition and connected to the pipe by butt welding.

　　The flange of PL flange manufacturer is not easy to deform, has good sealing, and is widely used. It is suitable for pipelines with large fluctuations in pressure or temperature or pipelines with high temperature, high pressure and low temperature. The advantage is that the price is relatively cheap, and the nominal pressure does not exceed 2.5MPa; The nominal pressure is around PN16MPa for pipelines that transport expensive, flammable and explosive media.

　　The PL flange manufacturer's flange connection consists of a pair of flanges, a gasket and several bolts and nuts. The gasket is placed between the sealing surfaces of the two flanges. After tightening the nut, the specific pressure on the surface of the gasket will deform when it reaches a certain value, and fill the unevenness of the sealing surface to make the connection tight and leak-proof.

　　PL flange manufacturers found that there are three types of forged flange sealing surfaces: flat sealing surface, suitable for occasions where the pressure is not high and the medium is non-toxic; concave and convex sealing surface, suitable for occasions with slightly higher pressure; tongue and groove sealing surface, It is suitable for flammable, explosive, toxic media and occasions with high pressure.