... /2-02.4)operating temperature:60°C,65°C,70°C,75°C,80°C,85°C,90°C,95°C,99°C.Can change the operating temperature as ... the customers' requirements range from 60°C to 99°C ... ': aBigImageSrc } ); } )(); Solar water heater system T/P safety valve sensitive to temperature and pressure China national standard GB/T 20910-2007