When one of the valve sealing pairs uses an insulator, such as rubber, plastic, etc., static electricity will be generated due to friction during the up and down or rotation of the sealing pair. Since the insulator has the risk of accumulating static electricity, static electricity can cause sparks, and sparks may cause the medium to explode. Therefore, in order to effectively prevent the generation of static electricity, it is necessary to conduct electricity between the ball, the valve stem and the valve body, thereby drawing out the static electricity. At present, the connection method of elastic elements is usually used at home and abroad to draw out static electricity through elastic elements. Anti-static circuits with a power supply voltage not exceeding 12V should have conductivity with a resistance of less than 10 ohms.
