Anti-crack valve body casting

The utility model discloses an anti-crack valve body casting, which relates to the technical field of valve body castings and comprises a valve casing, a first connecting ring is mounted at a pipe orifice of the valve casing, a connecting pipe is communicated with the inside of the valve casing, a second connecting ring is mounted at a pipe orifice of the connecting pipe, and a first reinforcing rib and a second reinforcing rib are fixedly connected to the outer surface of the valve casing. A shell is installed outside the valve shell, a protruding plate is fixedly connected to the inner wall of the shell, a fixing piece is installed in the shell, a third reinforcing rib is fixedly connected to the outer surface of the shell, a fixing rod is slidably connected to the interior of the third reinforcing rib, and through cooperation of the protruding plate, the shell, the third reinforcing rib and the fixing rod, the fixing piece is installed in the shell. The protruding plate and the shell can wrap the exterior