24 Tubes Color Steel Non-Pressurized Evacuated Tube Solar Water Heating
| Vacuum tube | Spec. (mm) | Φ 58× 1800 |
| Tube (pcs) | 24 | |
| Material | Borosilicate glass, magnetron spluttering selective coating | |
| Coating | Cu/SS-ALN(H)/SS-ALN(L)/ALN coating | |
| Water tank | Capacity | 240L for inner water tank |
| Inner tank | Food-grade stainless steel SUS304-2B | |
| Insulation | Imported polyurethane integrated foam-forming 50~60mm | |
| Tank shell | Color steel plate | |
| Bracket | Spec. (mm) | 1.2 ~ 1.5mm in thickness |
| Material | Hot-dip galvanized steel plate/Stainless steel plate /Aluminum alloy plate | |
| Accessories | Stainless bolts & nuts, Silicon rubber seal, Dust proof rubber seal, Plastic pipe holder | |
| Optional device | Electrical heater, Intelligent controller / Assistant tank, Anode magnesium bar | |
| Tilt angle | 25° ~ 50° | |
| Water output | 45-95 o C | |
| Hail resistance | Φ 25mm | |
Description:
Economical and reliable solution,Simple installation,High efficiency.Working under non-pressure system.
Compact Non-pressure Solar Water Heater relies on the natural circulation of water between the collector and the tank. As water in the vacuum tubes is heated it rises naturally into the tank, while cooler water in the tank flows down to the bottom of the vacuum tubes, causing circulation throughout the system.
Inner tank:food grade stainless steel SUS304-2B
Outer tank:Galvanized color steel/stainless steel/PVDF
Insulation :50mm polyurethane foam for 72hrs heat preservation
Collector :Vacuum tube painted by magnetron sputtering selective
Bracket:Galvanized steel/stainless steel/aluminum alloy
Working Theory:
Non-pressure vacuum tube solar water heater is an open loop and thermosyphon system. The vacuum tube with special absorptive coating can absorb the sun energy and transfer sun energy to heat energy. Whole system works according to the thermosyphon principle. Water in vacuum tubes is heated and then rises to top of tank. Cold water in tank goes down to the vacuum tube bottom. Water in the system will be heated as circulation keeps going on. This type of solar water heater is one of the most popular systems because of its own advantages of high efficiency,cheap price,simple Installation and free maintenance
Applications:
Domestic hot water for shower, washing
Competitive Advantage:
1.Stainless steel plates, welded by argon arc. Water is pure and drinkable
2. Heat insulation of water tanks adopts polyurethane foam and the thickness is 55mm
3. Silicon rings to connect and seal them
4.The tubes and supports are adjustable. The power bearing is average and can assure the vacuum tubes to use for a long time
5. Whole glass vacuum tubes adopt super hard borax and silica glass
6. Absorption rate: =93%, thermal radiation rate: =6%
7. It resists 25mm hail and the using life can last 15 years
8. Temperature when exposed to sun without water: 250oC, 2.5 hours to boiling point if using single tube
9) If you use electrical appliances to aid heating and to switch off the power supple before bathing
10) Please test the water temperature before using, in order to avoid scalding
