After the pressure reach the set pressure and valve discharge. There's a greater chance some foreign matter stock between valve's disk and seat. It will lead to insufficient seal which cause leakage. We suggest you to discharge the valve again, use the controllable high pressure air or water to blow away the foreign matter. If the valve is still leaking, please send it back to us for repairment. *The safety valve is a consumables component. There will be repairment fee needed*