1.Name:brass boiler safety relief valve 2.Thread:1/4",3/8",1/2" 3.Working pressure:0.-1.5Mpa 4.Design for you The brass boiler safety valve is applicable for the air compressor, boiler or tank with operating tempreture<200C.It applied to security protection when media overpressure. When pressure in the air storage exceeds allowable value, the safety valve will open automaticallly and then ...