... :0.-1.5Mpa 4.Design for you The brass boiler safety valve is applicable for the air compressor, boiler or tank ... . When pressure in the air storage exceeds allowable value, the safety valve will open automaticallly and then discharge. When the pressure ... , special painting line, ect. Nameoperating tempretureoperating pressure(Mpa)connection sizeMaterialbrass safety valvet<200C0.1-1.51/4", 3/8"brass 1 ...