HOT Three Target Solar Vacuum Tube

1. High efficience performance
2. Certificate:CE,ISO,CCC
3. OEM provide
4. Good quality low price



The detail of solar tube:
Category
Single- target
vacuum tubes
Tri-element Hitech vacuum tubes
Three- target
tubes
External pipe diameter and thickness
Φ=47±0.7mm
&=1.6mm
Φ=58±0.7mm
&=1.6mm
Φ=70±0.7mm
&=1.6mm

Internal pipe diameter and thickness
Φ=37±0.7mm
&=1.6mm
Φ=47±0.7mm
&=1.6mm
Φ=58±0.7mm
&=1.6mm

Sediment method
Single target magnetron sputtering plating
Three target magnetron sputtering plating
Three target magnetron sputtering plating
Specific absorption
a=0.90~0.93 (AM1.5)
a=0.93-0.96
(AM1.5)
a=0.92~0.96
(AM1.5)
Emission ratio
ε=0.05~0.075
(80°C±5°C)
ε=0.04~0.06
(80°C±5°C)
ε=0.04~0.06
(80°C±5°C)
Vacuum tightness
P≤5.0×10
-3
Pa
Average heat loss coefficient
U=0.6~0.7W/(m².°C)
U<=0.6 W/(m².°C)
U=0.4~0.6W/(m².°C)
Packaging

Carton
Routine Packaging:8 or 10 or 12 pc /carton
Special Packaging: According to what customs need






1. Excellent performance of absorbing, but low heat loss, Especially adapted to sever cold regions,(super heat preservation).
2. Excellent resistance of burst.
3. Excellent resistance of corrosion, long life span ( up to 15 years)
4. Reducing the fouling on the tube wall, keeping water clean.
5. Evacuated tubes are aligned in parallel, the angle of mounting depends upon the latitude of your location. In a North South orientation the tubes can passively track heat from the sun all day. In an East West orientation they can track the sun all year round