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Economical 250L Non Pressure Vacuum Tube Solar Water Heater

Non pressure compact solar water heater with solar vacuum tubes, high efficiency, low price, easy installation, suitable for Asia, middle east, south america, and most africa countries.
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  • RNE-NC-25

  • SOLARAVEN

  • 841912


Overview


The Economical 250L Non Pressure Vacuum Tube Solar Water Heater is a cost - effective and reliable solar thermal solution designed for households and small - scale applications. With a 250 - liter storage capacity, this non - pressure system uses vacuum tube technology to efficiently collect solar energy and heat the water. It provides a sustainable and affordable alternative to traditional water heating methods, helping users reduce their energy bills and environmental impact.


Features


Vacuum Tube Heat Collection: The water heater is equipped with high - efficiency vacuum tubes that are designed to capture solar energy effectively. The vacuum - sealed tubes reduce heat loss through conduction and convection, allowing the water to reach high temperatures even on cloudy days or in cold climates. The selective absorption coating on the tubes maximizes solar radiation absorption for enhanced performance.

Non - Pressure Design: Operating as a non - pressure system, the 250L Non Pressure Vacuum Tube Solar Water Heater is simple and safe to install. It does not require complex pressure - relief valves or high - pressure piping, making it suitable for areas with basic plumbing systems. This design also reduces the risk of leaks and pressure - related issues, ensuring long - term reliability.


Water Heater


Model

Solar Vacuum Tube

Capacity

Absorber Area

Suitable for

Pcs

Size(mm)

(L)

(㎡)

(Persons)

RNE-NC-10

10

58×1800

100

1.330

2

RNE-NC-15

15

58×1800

150

1.995

3

RNE-NC-20

20

58×1800

200

2.660

4

RNE-NC-25

25

58×1800

250

3.325

5

RNE-NC-30

30

58×1800

300

3.990

6


Non Pressure   Solar water heater with solar vacuum tubes

Solar Water Tank

1

Material of   Outer Tank Shell

Galvanized steel with anti corrosive paint

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 or 1500MM】 

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


250L solar water heaterkompaktowy-bezcisnieniowy-podgrzewacz-wody-proeco-jnyl-200


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