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How non-pressure solar water heater works1. Nonpressure solar water heater of all glass evacuated tube collector integrated with storage tank, are ideal for use in houses and other applications where cheap, reliable hot water supply is required. They are simple, economic and practical.2. As the specific gravities of hot water and cold water are different, cold water goes downward and hot water goes upward.3. When cold water in evacuated tubes is heated, it becaomes lighter and goes to the water tank, while cold water in the tank goes down to the evacuated tubes4. Through this circulation, the cold water in the water tank will be gradually heated.
Non-pressure solar water heater features1. Cheap and reliable solution, Simple structure, Easy installation2. High efficiency3. Withstands water pressure no more than 0.1MPa4. Operated without any power supplying5. Electric heater can be used as back up in rainy days6. Hot water can be used directly, or can be used as a pre-heated
Technical specifications:
1) The material of Inner tank:food level stainless steel:SUS304-2B:thickness:0.31mm or 0.4mm
2) The material of outer tank: galvanized steel plate,thickness,0.31mm
3) Brackets or support :alluminum alloy or stainless steel,thickness:1.5mm
4) Evacuated glass tube:single target or triple target (AL-N/AL OR SS-C/CU & AL/N)
5) The size of outer tank diameter:420mm or460mm
6) The size of vacuum tube:ø47 *1500mm ;Ø47*1800mm; Ø58*1500mm;ø58*1800mm ;ø70 *2000/2100mm
7) Insulation :polyurethane foaming:50mm–60mm
8) Pressure: 0 Pa
9) Heat preservation: 72hrs
10) Hail resistance: 25m
11) Capacity: 98/110/130/150/180/210/240/300L
12) Silicone seals and rubbers and so on
Certificates: ISO9001 ,CCC and CE,SGS,SRCC,EN12975 and solar kermark
Solar hot water heating system optional accessories1. Assistant tank: 3/5/8/10/12L2. Intelligent controller
3. Electrical heating back-up: 1.5/2/2.5kw
4.Magnesium rod
Economical compact nonpressurized solar water heater