Hammer safety valve is how to work? Heavy hammer safety valve, also known as lever safety valve. It consists of the valve body, seat, spool, lever, hammer and other components. Hammer safety valve works are: heavy hammer scale weight through the lever 5 and fulcrum role in the stem 3, the valve core 2 pressed against the valve seat, the valve closed, the steam pressure from the lower role in the spool When the steam acts on the valve core force on the fulcrum of the torque, greater than the hammer on the fulcrum formed by the torque, the valve core is lifted from the valve seat, the steam is discharged outward, that is, open the safety valve. Adjust the weight on the lever position, you can achieve the pressure relief valve seat adjustment. Heavy hammer safety valve has the advantages of simple structure, convenient adjustment and reliable operation, but its volume and weight are large, suitable for medium and low pressure small boilers and used as pulse valves on high-parameter high-capacity boilers.