... , 2.Temperature relief:(60-99C) 3.CEand ISO9001cetificate. 4.100percent leak test. 1.Used For:bearing the pressing type solar water heater,gas heater ... , electric heater , water heater of fuel, water heater of heat pump,sensitive function heater, etc.2.Standard setting:75,87,100,125,150psi (0.51,0.62,0.69,0 ...