... are professional swimming pool solar collector, solar water heaters, solar hot water heater, Domestic solar water heater, solar thermal panel for hot ... -3(PA)Stagnation temperature (temperature inside of empty evacuated tubes)260~300 °CAverage heat lossULT 0.4 ... T/P valve, Pressure reducing valveREMARK: SUNWE SOLAR, the leading solar collector manufacturer in CHINA,With high quality and competitive ...