PE steel ball valve

The utility model relates to a PE steel ball valve, including valve body, disk seat and steel ball, the valve body endotheca is equipped with the steel ball the valve body is equipped with the disk seat with contact department of steel ball, be equipped with a runner on the steel ball, disk seat and valve body are corresponding be equipped with the opening on the position at runner both ends, inlay on the disk seat and establish first sealing washer and recess, be equipped with pre compressed spring on the valve body, the one end of first sealing washer is revealed outside the disk seat, with steel ball surface contact, the opening level of recess is towards the valve body, pre compressed spring arranges the recess in, because the steel ball is metal surface, increases first sealing washer, has solved that can there be the sealed not good condition in direct contact between steel ball and the disk seat, simultaneously, is sealed compensation arrangement with pre compressed spring, further improves the leakpro