LPG storage tank leakage

The primary reasons for leakage are: valve seats and valve cores are not tightly sealed, combined with surface wear, dirt and dirt; spring deformation: the position of the heavy hammer on the lever; The valve stem is not straight, and the valve core cannot return to the original liquefied petroleum gas storage tank safety valve when the valve core is lifted to the voltage. Spring; Find the position of the hammer from scratch: check the leverage position to make it straight; the correct installation of the exhaust tube and the rust residue, etc.