Solar Evacuated Tube for Solar Water Heater Systems Three Elements Borosilicate Glass 3.3 Solar Collector 58*1800, 47*1500

Product Overview

Description

 

Solar Evacuated Tube for Solar Water Heater Systems Three Elements Borosilicate Glass 3.3 Solar Collector 58*1800, 47*1500

 

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). Lifetime >15years

 

Type	Tri-element	Normal (Blue)
Length	1500mm/1800mm	1500mm/1800mm
Outer Tube Diameter	47mm/58mm	47mm/58mm
Internal Tube Dia	37mm	37mm
Weight	1.4kg/2.0kg	1.4kg/2.0kg
Glass Thickness	1.6mm/2mm	1.6mm/2mm
Material	Borosilicate glass 3.3	Borosilicate glass 3.3
Absorptive Coating	Grade ALN/AIN-SS/CU	Grade ALN/AL
Vacuum degree	P≤5.0*10-3 Pa	P≤5.0*10-3 Pa
Thermal Expension	3.3*10-6/ºC	3.3*10-6/ºC
Insulation	>200ºC	>200ºC
Absorptance	>95%	>93%
Emittance	4-6%	5-7.5%
Heat loss	0.4-0.6W/(m2 ºC)	0.6-0.8W/(m2 ºC)
Maximum strength	0.8Mpa	0.8Mpa
Resist cold	-35ºC	-35ºC
Resist hailstone	Φ25mm	Φ25mm
Resist wind	30m/s	30m/s
Start-up temperature	≤25ºC	≤25ºC

 

 

Suntask Vacuum tubes assimilate the advanced 12 layers of spattering deposition Of trivalent element technology, high borosilicate glass, gradual change of ALN/AIN-SS/CU selective complex absorptive coating. And these make vacuum tubes have high performance of absorptance and low reflection ratio. Through the interlayer, vacuum has a unique effect of thermo, with its temperature up to 380°C of idle sunning, performing a strong heating ability.