The special screen changer for pipeline products is specially processed through many processes such as tempering, nitriding, and fine grinding, etc. It adopts special flow channel design, straight-through design, no dead angle, and special design for peroxide of cross-linked pipelines. Screen changer equipment consists of screen changer main body, slide plate, high temperature cylinder, heater, etc. The sealing parts are made of special alloy steel, tempered, nitrided, finely ground and other mu