Product Details

Solar collector heat pipe pressurized vacuum tube solar water heater

Feature:

1.Vacuum tube feature:

The kind of vacuum tube assimilate the advanced 12 layers of spattering deposition of trivalent element technology, high quality borosilicate glass 3.3, gradual change of CU-SS-ALN/ALN selective absorption coating and make vacuum tubes have high performance of absorptance and low reflection ratio. Through interlayer, vacuum has a unique effect of thermal, with its temperature up to 300degree of idle sunning, performing a strong ability.

2. Vacuum tube specification:

47-1500MM, 58-1800MM (Standard specification)

47-1800MM, 58-2000MM (optional specification)

3. Vacuum tube Loading quantity in container:

47-1500MM, 4700 PCS/20ft, 9600 PCS/40ft.

58-1800MM, 2700 PCS/20ft, 5600 PCS/40ft

Model type	47	58
Length	1500mm	1800mm
Outer tube diameter	47mm	58mm
Inner tube diameter	37mm	47mm
Glass thickness	1.5mm	1.5mm
Thermal expansion	3.3x10-6	3.3x10-6
Material	Borosilicate Glass 3.3	Borosilicate Glass 3.3
Absorptive Coating	AL/N/AL	AL/N/AL
Absorption coefficient	>90%	>90%
Emission coefficient	<10%	<10%
Vacuum	P<5x10-2pa	P<5x10-2pa
Stagnation Temperature	>200	>200
Net weight	1.20kg	2.23kg
Size	1580280250mm/20pcs	1880330170mm/10pcs
Quantity in 20 container	5060 pcs	2650 pcs