... weight 3. With independent intellectual property rights 1)Material:H59 Brass2)Specification:3/4inch,1/2inch3)Model:PT-3/4-01,PT ... -1/2-01,PT-3/4-02,PT-1/2-02.4)operating temperature:60°C ... to 99°C.5)operating pressure:0.3Mpa-1.4Mpa Solar water heater system, T/P valve, sensitive to temperature and pressure ...