Pre-heating solar water heater EG-26
Working Principle
One copper coil is installed inside the tank as the heat exchanger. When water flows into the copper coil, it absorbs the heat of the water in the tank via the copper coild.Therefore the water tank is just as heat storage tank.
Evergreen solar offers a range of high quality tanks designed especially for "Pre-heating". These tanks can be used in combination with existing electric/gas mains pressure
solar water heater, or even as stand alone low pressure hot water systems with the addition of electric elements or external gas boosting.
Ideal for use as low pressure thermal stores, the EVERGREEN pre-heating is available with the addition internal coil heat exchanger.
EVERGREEN “Pre-heating”
solar collector provide mains pressure via a high efficiency copper coil heat exchanger located within the tank. The way in which the mains pressure
solar system heats water is the same as the non-pressure
china solar water heater . Rather than using the water in the tank directly as the non-pressure does, the type uses a 45m-60m copper coil. A heat exchanger inside the tank provides more than 1.2m ² of heat transfer area.
When cold water flows through the coil it absorbs heat from the water inside the pre-heating tank. The tank is therefore a thermal store.

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Description
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| Product Model |
LL-New-L |
| Vacuum tube |
58-1800mm, 58-2000mm co-axial structure high borosilicate 3.3 glass vacuum tube with tube wall thickness of 1.6mm. |
| Inner tank material |
SUS304-2B Stainless Steel with thickness of 1.2mm |
| Outer tank material |
Color powder coating steel / Stainless steel |
| Frame material |
Galvanized steel plate with thickness of 1.5mm |
| Frame optional angle |
0?25?38?45?lt;/TD> |
| Capacity of water tank |
200L,240L,300L,360L 40L/person for Max consumption |
| Assistant tank |
5L,7L,10L,12L |
| Cooper coil |
With dia of 12mm and wall thickness of 1.0mm |
| Cooper coil length |
200L for 30m,240L & 300L for 35m,360L for 40m. |
| Heat preservation layer |
high pressure automatic polyurethane foaming layer with thickness of 55mm |
| Heat preservation hours |
72 hours |
| Hailstone resistance |
Dia=25mm |
| Min Order |
10 sets |
| Sample regulation |
Buyer should pay for product cost and sea freight |
| Guaranty |
Water tank for 3 years, tube and frame for 5 years |
| Optional accessories |
electrical heater |
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Parameter sheet
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Model NO.
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Vacuum tube specification
Dia Length Qty.
(mm) (mm) (unit)
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Tank volume
(L)
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Aperture area
(m2)
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Total weight
(KG)
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Total packing volume
(m3)
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Loading Qty.
20’GP 40’GP 40’HQ
(set) (set) (set)
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ML-New-L5820
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58
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2000
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20
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165
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2.8
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90
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0.85
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28
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60
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71
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ML-New-L5824
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24
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200
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3.36
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106
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1.15
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21
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45
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53
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ML-New-L5830
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30
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250
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4.2
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130
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1.25
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20
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45
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56
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ML-New-L5836
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36
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300
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5.04
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150
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1.35
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18
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38
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45
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More products :
Solar water heater