>Heat pipe tube for solar collector
>Working without water inner tubes
>special technology; high absorptive;low emission
vacuum tube with Heat pipe for solar collector 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.
vacuum tube with Heat pipe for solar collector specification:
| Manifold material and thickness | A, Black or silver aluminum alloy , thickness 2.0mm B, Stainless steel 304 2B, thickness 0.8mm |
| 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 | A, Aluminum alloy , thickness 2.0mm B, Stainless steel, thickness 1.2mm |
| Collector mounting | Flat roof/slope roof |
| Inlet and outlet | 1/2’’OR 3/4’’ |
| Hail resistance | 25mm |
| Coating of vacuum tube | SS-C/CU |
