3 target all glass solar vacuum tube borosilicate 3.3 glass

vacuum tube:
1:high temperature resistance
2:high cold resistance
3:high efficient absorbability
4.thickness:1.6mm
vacuum tube:

specification:
1.size:1):Ø47mmx1500mm
2):Ø47mmx1800mm
3):Ø58mmx1800mm
4):Ø58mmx1900mm
5):Ø58mmx2100mm

2.Structure: all-glass double-tube co-axial structure
3.Glass material: high borosilicate 3.3 glass

4.Absorptive coating property:
1)Structure:CU/SS-ALN(H)/SS-ALN(L)/ALN
2)Sediment method:3 target magnetron sputtering plating
3)Specific absorption :as=0.93~0.96(AM1.5)
4)Emission ration:εh=0.04~0.06(80°c±1.5°c)

5.Vacuum tightness:P<=5.0Χ10-³pa
6.Idle sunning property parameters:Y=260~300m².°c/kw

7.Solar irradiation for obtaining a preset water temperature:
1)H<=4.7MJ/m²(Φ58) H=3.7~4.2MJ/m²
2)H<=3.7MJ/m²(Φ47) H=2.9~3.2MJ/m²

8.Average heat loss coefficient:ULT=0.4~0.6W/(m².°c)


size
20'
40'HQ

Ø47mmx1500mm

4900PCS
12000PCS
Ø47mmx1800mm

4100PCS
9900PCS
Ø58mmx1800mm

2850PCS
6900PCS

All glass vacuum tubes are made of inner tube and outer tube,between two tubes it is vacuum.For our tubes enjoy very good reputation among our users and have been widely used for home market and overseas.