... heaters, boilers and other heater safety device. 1)Material:H59 Brass2)Specification:3/4inch,1/2inch3)Model:PT-3/4-01,PT-1 ... ,PT-3/4-02,PT-1/2-02.4)operating temperature:60°C,65°C,70°C,75°C,80°C,85°C,90°C,95°C,99°C.Can ... °C.5)operating pressure:0.3Mpa-1.4Mpa. Temperature And Pressure Relief Valve ,TP valve,used in solar water heater system GB/T ...