three target evacuated solar tubes

Model:	-
Brand:	Yaoguo solar
Origin:	-
Category:	Metallurgy , Mining & Energy / New Energy / Solar Energy
Label:	three layers coating , cold resistance , Fast Heating
Price:	US $1.8 / pc
Min. Order:	1000 pc

Product Description

All glass vacuum solar collector tube 58*1800mm Solar collector tubes

Product Description

All-glass evacuated solar collector tubes technical data

Technical Data	All-glass evacuated solar collector tubes
Material	Borosilicate Glass 3.3
Stone	Stones (Ø≤1mm) ≤1 piece in area of 10mm×10mm; Stones(1.0mm≤Ø≤1.5mm) ≤ 2 pieces in the whole tube.
Knots	Knots(Ø≤1mm) ≤2 pieces in area of 10mm×10mm; Knots(Ø≤2.5mm) ≤ 5 pieces in the whole tube
Absorptance of Selective Coating	≥0.92 (AM1.5)
Emission of Selective Coating	≤0.065 (80°C±5°C)

Solar heat pipe Techinical Specifications

Item	Measured value
Heat conduction coefficient	>99%
Axial heat transition auantity	0.93-2.49kw/cm²
Heat conduction speed	>200mm/s
Axial temperature difference	1-2centi-degree/m
Starting temperature	20centi-degree
Starting speed	2min

Working temperature range	30centi-degree~300centi-degree
Resistance to high temperature	No deformation in 48hours under 250C high temp condition
Resistance to low temperature	-35C
Life	15 years

Structure of Solar Collector Tube

1.inside tubes ,2.selective coating,3.vacuum jacket,4.outside tubes,5.supporter,6.getter,7.mirror

solar vacuum tube

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Packaging & Shipping

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