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Contact Person : Mr. gu norman
Company Name : Haining Aojin Solar Energy Industry Co., Ltd.
Tel : 86-573-87872010
Fax : 86-573-87888686
Address : Zhejiang,haining city,No.3 chang yi road, yuanhua town, haining city
Country/Region : China
Zip : 314416

all glass solar tube

Product Detailed

1) hard borosilicate 3.3 2)high efficient absorptive selective coating: SS-C/CU & AL/N 3)quatity gurranteed 10 years

Specification of all glass solar tube:

The marerial of glass tube: hard borosilicate :3.3

The thickness of inner and outer tube of:1.6mm

Absorption coefficient: more than 93%

Absorptive coating :high efficient heat absorptive selective sputtering coating:

SS-C/CU and AL-N/AL

Emission coefficient: less than 10%(8%)

Evacuated : less than 5*10-3pa

Stagnation temperature 220 degree Celsius

Hail resistance 25mm

Freezing resistance -35 degree Celsius

Structure		Dual concentric geometry tube
Material of glass		hard borosilicate:3.3
Diameter and thickness of outer tube		Ø58±0.5mm&1.6mm
Diameter and thickness of inner tube		Ø47±0.5mm&1.6mm
Length of vacuum tube		1800mm(±mm)
Properties of absorptive coating	Coating method	selective absorptive sputtering coating: SS-C/cu & AL/N
	Transmissivity t≥ 0.89(AM1.5)	0.913
	Absorptance α≥ 0.86(AM1.5)	0.930
	Emissivity εh≤0.080(30degree±5degree)	0.026
Pressure of vacuum tube p≤5×10-2 Pa		5×10-3Pa
Stagnation parameter Y>250sqm·degree/kW		246.3
Solar radiance H<4.7MJ/sqm		4.59
Average heat loss coefficient: ULT<0.8W(sqm·degree)		0.721
Lifetime		10 years

all glass solar tube

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