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Categories: Vacuum_Tube -> Standard_Vacuum_Tube
name: Vacuum tube
clicks: 16868 times
Release date: 2011-3-18 9:07:52

Single Target Vacuum Tube

Each evacuated tube is composed of two concentric glass tubes; the inner one is coated with highly selective layer and it converts solar radiation into thermal energy, as for the outer one, it is a cover to keep the vacuum . Both tubes are fused together and the gap between them is evacuated to achieve excellent thermal vacuum insulation.

Single-target Vacuum Tube Performance and Specification:

Tube structure

All-glass double deck co-axial structure

Glass material

High borosilicate 3.3 glass

Outer tube diameter and glass thickness

Ø58±0.7mm;Glass thickness 1.6±0.15mm

Inner tube diameter and glass thickness

Ø47±0.7mm;Glass thickness 1.6±0.15mm

Tube dimension



Coating material


Sediment method

Single target magnetron sputtering plating



Emission ratio


Vacuum degree


Idle sunning property parameters

220-260 m².C/KW

Average heat loss coefficient


Resistant Hail


Useful life

15 years



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