Introduction of Non-Pressure Solar Water Heater:Non-pressure Solar Heater is one of the most economical solar water heating device with pretty high efficiency at the same time. It consists of hot water storage tank, solar vacuum tubes with mouth plug in storage tank, and bracket supporting tank and tubes.When cold water in evacuated tubes is heated with solar irradiation, as the specific gravities of hot water and cold water are different, hotter water goes upward to storage tank and colder water goes downward to glass tubes. through this continuous circulation, the cold water in storage tank will be gradually heated till sunset.ÿ
Solar water heaters working principle
1. The solar collector absorbs solar energy and transmits it to the solar water heater tank through circulationÿ
2. When the temperature of the collector reaches the set value, the controller starts the circulation pump automatically
3. The circulation pump makes heat-conducting liquid circulate automatically
4. The heat-conducting liquid transfers heat to water by lower heat exchanger in the water tank.ÿ
5. When the temperature difference between solar collector and heat pipe solar water heaters tank doesn’t reach the set value, the circulation pump will be shut automaticallyÿ
6. In case the temperature of the water tank does not reach Tmax, Electric Heating Element will start to work automaticallyÿSolar water heaters working station component:
1. Operating screenÿ
2. Manometerÿ
3. Pump speed adjust switchesÿ
4. Temperature difference circulation pumpÿ
5. Flow rate indicatorÿ
6. Return circuit connectorÿ
7. Safety valveÿ
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Solar water heaters specification:Descriptionsolar ÿ water heatersMaterial ÿ of out manifold0.55mm ÿ thickness color steel/ fluorine carbon steelMaterial ÿ of inner tankFood ÿ grade 2.0 mm thickness SUS304 stainless steelTank ÿ insulating layer40mm ÿ 45kg/m? high-density polyurethane foamedInlet ÿ and outlet holeMale ÿ G1”Max ÿ pressure0.6 MpaSolar ÿ collector tube3.3 ÿ Borosilicate glass with N/Al coatingThickness ÿ of glass tube1.6mmVacuum ÿ tube tightnessPó0.005 ÿ PaAbsorptionas=0.93-0.96 ÿ (AM1.5)Emission ÿ ratioîh=0.04-0.06 ÿ (80Cñ5C)Idle ÿ sunning property parametersY=220~260m2.C/KWAverage ÿ heat loss coefficientULT=0.6~0.7W/(m2.C)Bracket:2.0mm ÿ thickness aluminum alloyTank ÿ weight75KGSTank ÿ size560mmÿDia ÿ x 1810mm HeightTank ÿ capacity300LSolar ÿ collector2pcsÿÿ58x1800x15tube ÿ solar collectorAbsorber ÿ area2.811ÿmýWorking ÿ stationSP116ÿworking ÿ stationHeat ÿ exchanger lengthUpper:12m,ÿÿ ÿ ÿ ÿUnderside:18mÿSolar water heaters details show:

ÿBenefits of this kind of solar water heaters:1. Prolong the life of your existing water heater2.Costs less than an electric, gas or oil water heater3.No maintenance required4.Lasts longer than a traditional hot water heater5.Reduce your water heating costs