Hard sealing ball valve

The utility model relates to a hard sealing ball valve which comprises a valve body, a ball body, a valve rod, a valve seat and a valve cover. The ball body is arranged inside a cavity on the interior of the valve body. The valve rod is connected on the upper portion of the ball body, penetrates through a through hole at the upper end of the valve body and extends outside the valve body. The valve seat is arranged on the inner wall, contacted with the ball body, on the interior of the valve body. The lower end of the ball body is placed on a fixed shaft. The fixed shaft is fixed on the portion, below the ball body, of the valve body. Compared with the prior art, the hard sealing ball valve has the advantages that service life of the ball body and the valve seat is prolonged so that service life of the valve is prolonged, according to the design with the double-face scraper type valve seat and a spring residue preventing structure, tightness of the valve and stability of the valve operation are guaranteed in a