Spherical rotary steam trap valve

The invention relates to a steam trap valve, in particular to a spherical rotary steam trap valve which is provided with a valve cover, a valve body, an automatic air exhausting device and a shutdown system. The shutdown system is provided with a floating ball, a valve seat body, a ball core, a valve seat, a retaining ring, a pressing ring, a valve seat cover, a spring, a sealing gasket, a valve rod, a clamp ring, a connecting plate, a U-shaped arm and a sliding bearing, and the automatic air exhausting device and the shutdown system are mounted on the valve cover. When the water level of condensed water in a valve cavity rises, the floating ball rises along with the water level, the ball core is driven to rotate by the U-shaped arm, and a water outlet is opened to drain the condensed water. When the water level of the condensed water in the valve cavity is changed, the floating ball rises or drops along with the water level, the valve rod and the ball core are driven by the U-shaped arm to automatically adju