1.Advanced valve seat: the valve seat designed based on many years of ball valve manufacturing experience ensures the valve sealing, low friction coefficient, small operating torque, a variety of valve seat materials and a wide range of applications.
2. Handle with correct opening and closing: the flat head valve rod is adopted, and the connection with the handle will not be misplaced, so as to ensure that the opening and closing state indicated by the handle is the same as that of the valve.
3. Locking device: in order to prevent mis-operation of valve opening and closing, there are locking holes at the fully open and fully closed positions of the valve to ensure that the valve is in the correct position.
4.Anti-flying structure of valve rod: the valve rod is bottom mounted to prevent flying out under pressure. At the same time, it can form metal contact with the valve body after fire to ensure the sealing of the valve rod.