What are the components of the screen changer

　　The screen changing system is generally composed of a screen changing device and a power system, wherein the screen changing device is composed of a body, a sealing component, a porous plate, a filter screen and a switching device.

　　The material selection of the components of the screen changer is very important. Ordinary carbon steel can not meet the requirements of high hardness, wear resistance, short service life and easy to leak materials. Generally, the components shall be made of alloy steel, especially the sealing components and switching devices shall be made of high-quality alloy steel through special heat treatment process to achieve high hardness and wear resistance, so as to ensure that the screen changer will not deform under high temperature and pressure, so as to ensure the sealing accuracy of the screen changer and the long-term use of the screen changer.