Features: 1) the small flow resistance; 2) simple structure; 3) small volume, light weight; 4) the ball valve sealing surface of the plastic material selection, good sealing, 5) easy to operate, open and close quickly, facilitate remote control; 6) easy maintenance, sealing ring, which generally remove easy to change; 7) full open or full close, sphere and valve seat sealing surface and the dielectric isolation, medium through does not cause the valve sealing surface erosion.
