The design of this type uses the principle of Thermosyphon. This type of system does not use heatpipes; instead the water is filled into the tubes, which in turn heat the header tank (which can vary between 85 and 220litres) by convection.It has obvious advantages:with a tank itself and the fittings are very low-cost. However, it is less functional, too large to appear roof-integrated, cannot accept pressure system kits.This type is commonly employed in hot countries such as Turkey, Greece, Mediterranean, Africa etc.
1) Reliable and efficient with twin-glass solar tubes
2) Easy plug-in installation
3) Outer tank material: stainless steel plate or powder coated color steel sheet
4) Inner tank material: 0.5mm thick SUS304 food grade stainless steel plate
5) Frame material: color steel
6) Superior heat preservation ensured by 50 - 65mm polyurethane foam insulation layer
| Place of Origin |
China |
Model Number |
SFA |
| Price Terms |
FOB, CIF |
Brand Name |
Sunline& OEM |
| Payment Terms |
T/T, L/C |
Minimum Order |
1 sets |
| Supply Ability |
2,500sets/month |
Delivery Time |
7 days |
| Item No. |
Specification |
Tank's
Capacity |
Tank and
solar
tubes'
Capacity |
Effective
collector
area M2 |
Qty (set) |
Diameter
of water tank |
Qty.
of solar tubes |
Diameter
of solar tube |
Length
of solar tube |
20'ft |
40'ft |
| SFA42154715-HJ |
Ø 420mm |
15pcs |
Ø 47mm |
1.5M |
84.2L |
104.4L |
1.25 |
77 |
157 |
| SFA42184715-HJ |
Ø 420mm |
18pcs |
Ø 47mm |
1.5M |
100.5L |
124.7L |
1.49 |
66 |
134 |
| SFA42204715-HJ |
Ø 420mm |
20pcs |
Ø 47mm |
1.5M |
111.4L |
138.3L |
1.66 |
60 |
122 |
| SFA42244715-HJ |
Ø 420mm |
24pcs |
Ø 47mm |
1.5M |
133.3L |
165.5L |
1.99 |
52 |
105 |
| SFA42304715-HJ |
Ø 420mm |
30pcs |
Ø 47mm |
1.5M |
166L |
206.3L |
2.49 |
42 |
85 |
| SFA47155818-HJ |
Ø 470mm |
15pcs |
Ø 58mm |
1.8M |
132.3L |
172.9L |
1.89 |
50 |
101 |
| SFA47185818-HJ |
Ø 470mm |
18pcs |
Ø 58mm |
1.8M |
148.6L |
197.3L |
2.27 |
43 |
87 |
| SFA47205818-HJ |
Ø 470mm |
20pcs |
Ø 58mm |
1.8M |
164.9L |
219L |
2.52 |
38 |
78 |
| SFA47245818-HJ |
Ø 470mm |
24pcs |
Ø 58mm |
1.8M |
197.5L |
262.5L |
3.03 |
33 |
68 |
| SFA47305818-HJ |
Ø 470mm |
30pcs |
Ø 58mm |
1.8M |
246.3L |
327.5L |
3.79 |
26 |
54 |
 The Principle of Thermosyphon
|
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 continuousl between water tank and vacuum tube. In other wards, 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. This is the heating course of cold water.
|
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