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300L Low pressure low price vacuum tube solar geyser

Low Pressure Solar Geyser with solar vacuum tubes, high efficiency, low price, easy installation, suitable for most african countries, such as south africa, Zimbabwe, Namibia, Lesotho, Tanzania, Kenya. 
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  • RNE-NS-30

  • SOLARAVEN

  • 841912

Low pressure solar geyser with solar vacuum tubes

Low Pressure Solar Geyser with solar vacuum tubes, high efficiency, low price, easy installation, suitable for most low income countries, such as India, Pakistan, Vietnam, Thiland, south africa, Zimbabwe, Namibia, Lesotho, Tanzania, Kenya.

This type of solar water heater is specially designed for countries which are lack of electricity. To solve off grid areas, people have no electricity to heat water for shower and washing purposes. It is widely used in South africa, East africa and South Asia countries. 


Vacuum-tube-nonpressurized-solar-hot-water-heater


The low pressure solar geyser adopts solar vacuum tube technology, the solar evacuated tubes absorber will collect heat from the sunlight and transfer into water inside the tubes. The tube water is heated to rise up and tank cold water sink down to creat a circulation, called thermosiphon effect. The water tank will be gradully full of hot water as the tubes keep collecting heat from the sunlight.  It is no need of electricity heating. It is only by solar thermal heating. 

11


In case of some areas water quality is very bad, and some islands is near the sea . When the weather is hot and wet, the metals is very easily to be corrosive. We use stanless steel 304 2B food grade and stainless steel 316L marine grade material to produce the solar geayer water tank. In order to resist the corrosion in Coast areas.  


Low pressure solar geyser specification:

Model

Vacuum Tube

Capacity

Absorber Area

Suitable for

Pcs

Size(mm)

(L)

(㎡)

(Persons)

RNE-NS-10

10

58×1800

100

1.330

2

RNE-NS-15

15

58×1800

150

1.995

3

RNE-NS-20

20

58×1800

200

2.660

4

RNE-NS-25

25

58×1800

250

3.325

5

RNE-NS-30

30

58×1800

300

3.990

6


More details of low pressure solar geyser technical data :

Low Pressure   Solar Geyser with vacuum tubes

Solar Water Tank

1

Material of   Outer Tank Shell

stainless steel 304 2B or 316L

2

Material of   Inner Tank Chest

stainless steel 304 2B or 316L

3

Water Tank   Diameter

【460/360MM】

4

Water Tank   Insulating Layer

Imported   Polyurethane,High Density,【50MM】

5

Heat   Preservation Period

72~80Hours

6

Welding Method

Argon Arc   Welding

Solar Vacuum Tube

7

Solar vacuum tube structure

All-Glass Double   Co-Axial Structure

8

Glass Material

High   Borosilicate 3.3 Glass

9

Tube Size

【diameter 58MM* length 1800MM】 

10

Outer Tube   Dia.&Glass Thickness

φ58±0.7mm,Glass   Thickness 1.6±0.15mm

11

Inner Tube   Dia.&Glass Thickness

φ47±0.7mm,Glass   Thickness 1.6±0.15mm

12

Coating Material

【CU/SS-ALN(H)/SS-ALN(L)/ALN】

13

Sediment Method

Tri-Element   Magnetron Sputtering Plating

14

Absorb Ratio

>96%(AM1.5)

15

Thermal   Emissivity

≤6%/(80℃)

16

Hail Resistance

φ25mm

Solar water heater 

Bracket

17

Bracket Material

【Stronger Galvanized Steel】

18

Bracket Angle

【25°】

19

Bolts&Muts

Stainless Steel

Assistant Tank

20

Assistant Tank   Material

Stainless steel 

21

Assistant Tank   Capacity

【5L/8L/20L】

22

Assistant Tank   Model

Vertical/Horizontal,Optional


300L low pressure solar geyser Installation references

IMG_1196IMG_1200




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