1. Name: brass safety valve 2. Thread: 1/4",14*1.5, 0. ... 1.5Mpa 4. Design for your use The safety valve is applicable for the air compressor with operating tempreture< ... in the air storage exceeds allowable value, the safety valve will open automaticallly and then discharge. When the pressure ... is lower than the rated value, the valve will shut off automatically to ensure the safe operation ...