... endure tha max pressure up to 0.6Mpa. As the system is pressurized, so it can keep a constant temperature of water ... frequent melting technology. It can directly connect with tap water system. It can solved the low heat efficiency problem caused by ... ; Coating material: ALN/ALN-SSCU. Size: 47*1500mm / 58*1800mm integrated pressurized solar water heater,solar collector,solar,solar water heater tank