1.Skylight evacuated tubes are the absorber of the solar water heater.
2.Skylight evacuated tubes absorb the solar energy and then convert it into heat for use in water heating.
3.Skyight evacuated tubes are choosen for reliability, performance and low manafacture cost.
Length (nominal) | 1800mm |
Outer tube diameter | 58mm |
Inner tube diameter | 47mm |
Glass thickness | 1.8mm |
Thermal expansion | 3.3x10-6 oC |
Material | Borosilicate Glass 3.3 |
Absorptive Coating | Graded Al-N/Al |
Absorptance | >93% (AM1.5) |
Emittance | <8% (80oC) |
Vacuum | P<5x10-3 Pa |
Stagnation Temperature | >200oC |
Heat Loss | <0.8W/ ( m2oC ) |
Maximum Strength | 0.8MPa |
Start-up temperature | ≤25°C |
Anti hail | ≤Ø 25mm |
Weight | 2.2kg |
Package | 1880*330*170(10pcs)1880*280*170(8pcs) |
Loadage(20GP/40GP) | 2600/4800 |
