250 Liters Non Pressure Evacuated Tube Solar Water Heater

250 liters non pressure evacuated tube solar water heater

Working principle:

Compact Pressure System Working Principle:

Vacuum tube collect heat from sunshine, aluminum ring inside transfer the heat to heat pipe, then heat pipe transfer the heat to water inside tank, the system start and transfer heat is quick in cloudy and low radiation days, daily average heat efficiency can up to 55%

Specialty:  

1.Economical type for most of area,common people can afford it

2.Simple product structure: 

solar collector and water tank connected together directly, no need of pipe to connect, and no pump to push fluid

3. Mature technology and stable operation

4. higher efficiency on photo thermal conversion.

5. Accessory is popular and easy maintenance

Technical specification:

1.  Inner Tank: o.41mm SUS304-2B food grade stainless steel (optional material: SUS316L).

2.  Outer Tank: o.31mm color steel (SUS304-2B).

3.  Bracket: galvanized steel plate with plastic spraying, thickness 1.2mm/1.5mm, angle 20°/30°/40°/45°.

4.  Insulation: 55mm polyurethane layer.

5.  Vacuum tube material: borosilicate glass 3.3; AL-SS-CU absorb coating

6.  Seal material: Stabilized High Temperature Silicon

7.  It resists 25mm hail.
8.  Heat preservation: 72 hours

Packing and shipping

Samples:

 Factory Version:

Office & Show Room:

Working plant & Warehouse