Non pressure solar water heater

Description for non pressure Non pressure solar water heater: Certificates: CE CCC SOLAR KEYMARK Advantages: 1. It operated completely automatic if connect with intelligent controller. 2. Simple structure, easy plug-in installation, can be installed both on flat and inclined roof, and can be used with an auxiliary electrical heater as to provide tot water without sunshine. 3. Superior heat preservation ensured by one-off molding polyurethane foam with thickness 55 / 65mm. 4. Stable and reliable performance, well wind resistance. 5. Meet the mankind healthy bath standard: The material of inner tank is SUS304-2B stainless steel plate; The silica gel ring sealing has a long life against the erosion and it ie not harmful to health. The details of material: Evacuated tube: 3 targets High quality borosilicate glass 3.3, Φ47× 1500 Φ58× 1800/2100, Inner tank: SUS304-2B stainless steel plate Outer tank: Al-Zn coated steel sheet. Insulating layer: Polyurethane foam 55mm Bracket: Aluminum alloy/ Galvanized sheet The Principle: Because of the larger proportion of hot water than cold water, cold water flows downward and hot water goes upward. The water will be heated continuously between water tank and vacuum tube. In other words, hot water always floats on cold water. The hot-water flows to the water tank from the vacuum tubes. Because of the proportion, cold water flows to vacuum tubes from the water tank. The cold water is heated in vacuum tubes. After it becomes hot water, it flows to water tank again. The water circulates constantly between water tank and vacuum tubes; The cold water in water tank will be hotter and hotter. Finally, all cold water will be heated to be hot water.