300L 304 Evacuated Tube Solar Water Heater 250L Low Pressure Solar Collector
Technical Specifications:
Inner tank use stainless steel SUS304, outside water tank shell all are made of Colored steel sheet, welded by argon arc.
Water is pure and drinkable
Heat insulation of water tanks adopts polyurethane foam, thickness is 55mm
Silicon rings to connect and seal them
The tubes and supports are adjustable, power bearing is average, and can assure the vacuum tubes to use long time
Whole glass vacuum tubes adopt super hard borax and silica glass
Absorb rate:≥ 93%,thermal radiation rate:≤6%
Resist 25mm hail, using life can last 15 years
Temperature when exposed to sun without water: 250°c, 2.5hours to boiling if using single tube.
Packaging & Delivery:
Packaging Details: CARTOON ;for samples ,the vacuum tubes will be packaged by wooden box.
Delivery Detail: 15working days for 20GP ;20days for 40Hq container.
| Type | Vacuum Tubes | Capacity (L) | Loading Quantity (20'GP/40'GP/40'HQ) |
| No. | Dia. - Len. |
| 150-1800/58-15-HP | 15 | Ø58-1.8m | 150 | 42/89/105 |
| 200-1800/58-20-HP | 20 | Ø58-1.8m | 200 | 35/74/86 |
| 240-1800/58-24-HP | 24 | Ø58-1.8m | 240 | 31/65/77 |
| 300-1800/58-30-HP | 30 | Ø58-1.8m | 300 | 26/54/64 |
Working principle:
Non-pressure solar water heater of all glass evacuated tube collector integrated with storage tank, are ideal for use in houses and other applications where cheap, reliable hot water supply is required.
They are simple, economic and practical.
As the specific gravity of hot water and cold water are different, cold water goes downward and hot water goes upward.
When cold water in evacuated tubes is heated, it becomes lighter and goes to the water tank.
While cold water in the tank goes down to the evacuated tubes
Through this circulation, the cold water in the water tank will be gradually heated.
Technical Data:
| Inner tank | SUS 304 stainless steel, 0.41mm thickness |
| Inner tank diameter | 360mm,380mm |
| Outer tank | PVDF steel, 0.40mm thickness |
| Outer tank diameter | 460mm,470mm,480mm |
| Capacity | 100L-360L |
| Tank insulating layer | 50-60mm high-density polyurethane foamed |
| Foam pressure | 32kg/m3 minimum |
| Heat reservation | 72 hours |
| Evacuated tube type | 3 target tube AL-N-AL/SS/CU coated |
| Outer Glass Tube Diameter | 58mm |
| Inner Glass Tube Diameter | 47mm |
| Length of the Vacuum Tube | 1800mm |
| Thickness of the Glass Tube | 1.6mm |
| Material of bracket | Galvanized steel 1.5mm |
| Structure of bracket | Flexibility for flat or slope roof |
| Angle of bracket | 0-50 degree |
| Screw for bracket | SUS 202 stainless steel 8mm diameter |
| Seal | High quality silicone rubber polymer |
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300L 304 Evacuated Tube Solar Water Heater 250L Low Pressure Solar Collector Images
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