heat pipe solar vacuum tube

1.45 lines for solar water heater
2.three target coating(SS-CU-ALN/ALN)
3.5 years quality warranty

The detail of the three target solar vacuum tube:
Tube structure
Borosilicate 3.3 glass
External pipe diameter and thickness
Φ=47±0.7mm &=1.6mm
Φ=58±0.7mm &=1.6mm
Φ=70±0.7mm &=2.0mm
Internal pipe diameter and thickness
Φ=37±0.7mm &=1.6mm
Φ=47±0.7mm &=1.6mm
Φ=58±0.7mm &=1.6mm
Tube lenghth
from 1.2 mto 2.1m
Sediment method
Three-Targets magnetron sputtering plating
Absorptivity
0.93-0.96(AM1.5)
Emittance
<=6%(75-80°C)
Stagnation parameter
>=200
Average heat loss
<=0.6
solar vacuum tube work principle
:


1) Copper heat pipe and inner medium for thermal transmission, with a quick start up and super efficiency.
2) No water flows into vacuum tubes, system works well with with-drawal o fone or several heat pipe vacuum tubes.
3) Super efficiency of insulation with polyurethane foam; No vent with less heat loss as compared to nonperssurized type.
T he structure of heat pipe solar vacuum tube



1) stand pressure more than 6 Bar, can be connected directly with tap water, more safe system and comfortable water use.
2) Can be equipped with auxiliary electric booster and intelligent controller for automatically control