High pressure butt welding flange is one of the most demanding flange products in the market. The general pressure grade of high-pressure butt welding flange is between 0.5MPA-50mpa. The structural form of high-pressure butt welding flange is divided into unit flange, integral flange, and insulation flange. According to the shape of the flange surface, it can be divided into flange sealing surface: plane, concave, concave, tenon groove surface, ring connection surface.
Butt-welding flange has reliable sealing, excellent performance and beautiful appearance. Butt welding flange has the advantages of wear resistance, high temperature resistance, corrosion resistance, abrasion resistance and long service life.

Due to its unique impact strength performance, it is significantly improved over other solid wall tubes, and its ring stiffness is 1.3 times that of solid wall tubes. Under the rated service temperature and pressure, the service life of the pipe can reach more than 50 years, with anti-ultraviolet and anti-radiation, so that the product will never fade.