>Heat pipe vacuum tube for solar water heater
>Working without water inner tubes
>with high efficiency
>wooden case package
Heat pipe vacuum tube for solar water heater has the following advantages:
1) It perfectly solves the problem of which can't run if one of the tubes is out of work
2) It prevents the tube from being easily broken caused by the volume expansion when the water in tube freezes in frigid season
3) There is no water in the tubes, so it is successfully prevented the defects of tubes' broken and lower power output caused by water fouling and deposits of mud and sand
4) Adopt high efficient selective absorptive coatings and low reflection ratio ensure the tube to get higher power output in cloudy weather and in moist area, especially in winter.
Heat pipe:
| Manifold material and thickness | Black or silver aluminum alloy , thickness 2.0mm |
| Header pipe material and thickness | Diameter:32mm, thickness 1.0mm copper pipe |
| Heat pipe material and thickness | Diameter:14mm, thickness 0.5mm copper pipe |
| Insulation | Polyurethane foam 60mm or rock wool |
| Test pressure and work | Test pressure 9Bar, work pressure 6bar |
| Frame material and thickness | Aluminum alloy , thickness 2.0mm |
| Collector mounting | Flat roof/slope roof |
| Inlet and outlet | 1/2’’OR 3/4’’ |
| Hail resistance | 25mm |
| Coating of vacuum tube | SS-C/CU |
Vacuum tube:
External pipe diameter and thickness | dia.=47±0.7mm &=1.6mm dia.=58±0.7mm &=1.6mm dia.=70±0.7mm &=2.0mm |
Internal pipe diameter and thickness | dia.=37±0.7mm &=1.6mm dia.=47±0.7mm &=1.6mm dia.=58±0.7mm &=1.6mm |
Pipe length | 1200mm 1500mm 1600mm 1700 1800mm1900mm 2000mm |
