The Hottest Solar Vacuum Tubes Solar Evacuated Tubes Collector Water Heater Glass

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Product Overview

Description


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


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Working Principle of Solar Vacuum Tubes

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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.

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0.1881 s.