Share on (60291778427):
Specification
1). Structure: all glass concentric dual tube geometer
2). Glass material: borosilicate glass
3). Absorptance: >0.92
4). Emittance: <0.08 (80°C)
5). Vacuum: <5*10-3 Pa
6). Stagnation >230m2.°C/KW
7). Average heat loss: <0.8w/ m2.°C
8).We can supply 47mm 1500mm /47mm 1800mm/58mm 1800mm/58mm 2100mm/70mm 2100mm


Working Principle of Solar Vacuum Tubes

Advantages
1)Absorptivity:0.94-0.96
Because of the copper insulation,the absorption of stainless steel and the decline heat of aluminium layer.
2)Endure bad weather
Our evacuated tube can endure temperature to 250.C,even under -50.C since the vacuum rate can reach less than 5.0×10-3pa.
3)Structure stability
The tube prssure-endure ability can reach 1Mpa.
4)Long life
Patented conducting substance is compatible with normal metal material that result in
non-condensable gas and non-stop running within 15 years and long duration for the collector.
5)Advanced technology
Our company use 3 target magnetron sputtering plating technology,which introduce from
Germany and also called interferometer coating technology.

New products from manufacturers at wholesale prices