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vacuum tube

Three-target all-glass vacuum heat collection tube property and specification :

1) All-glass double-tube co-axial structure,high borosilicate 3.3 glass ;

2) External pipe diameter and thickness:diameter :47mm,Thickness::1.6mm;Length:1500mm;

                                                           diameter :58mm,Thickness:1.6mm;Length:1800mm;

3) Structure: Cu/SS-ALN(H)/SS-ALN(L)/ALN

4) Sediment method: 3 target magnertron sputtering plating ;

5) Vacuum tightness: less than 0.005 Pa.

Length	1500mm	1800mm
outer tube diameter	47mm	58mm
inner tube diameter	37mm	47mm
glasses thichness	1.6mm	1.6mmm
material	high borosilicate glass3.3	high borosilicate glass 3.3
vacumm degree	P<5*10-3pa	P<5*10-3 Pa
heat-absorbing rate	>90%-93%	>90%-93%
emission of heat	<7.5%-5%	<7.5%-5%
pressure-endure ablity	1.0Mpa	1.0 Mpa
resist hailstone	25mm	25mm
resist wind	30m/s	30m/s
life	15 years	15 years

high quality super three-target vacuum tube