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Material of vacuum tube:single-target tubes
Inner tank:SUS304-2B food grade stainless steel
Outer tank:pearlescent ceramic plate
Heat insulating layer:imported polyurethane
Frame:galvanized steel, ant oxidation
Inner tank:1.2mm
Outer tank:0.4mm
The thickness of heat insulating layer:50mm
Frame:1.5 mm
Pressure: 7 bars
Heat preservation:72 hours
Hail resistance:25 mm
Warranty:
solar water heater:3 years
Vacuum tube: 5 years
Working temperance: 90 Celsius degrees
Cold resistance: -30 Celsius degrees
Working principle:The selective coating on the inner cover of the evacuated tubes converts solar energy into heat energy and transfers heat to the heat pipes by aluminum fins, the liquid in the heat pipe changes into vapour which rises to the condenser. The heat then passes through the heat exchanger and the vapour becomes liquid, returning to the base of the heat pipe. The heat conducts to the heat transfer liquid(ante-freezing liquid or water) via a copper pipe. This transference of heat into the liquid creates a continuous circulation as long as the collector is heated by the sun
compact pressurized solar water heater tank