Popular vacuum tube solar receiving tube solar absorbing tube

Model:	-
Brand:	yaoguo solar
Origin:	-
Category:	Metallurgy , Mining & Energy / New Energy / Solar Energy
Label:	Popular vacuum glass , solar receivin58*180 , solar absorbing vac
Price:	US $1.68 / pc
Min. Order:	7000 pc

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Product Description

Product Description

As one of professional manufactures of solar vacuum tube , we are offering all specification of solar vacuum, such as 47*1500mm, 47*1800mm, 58*1800mm, and so on.

Right now, we can offer 10 million pieces per year and have exported tubes to more than 20 countries around the world, such as India, Turkey, Mexico, Syria, Lithuania, Brazil, Chile, USA, Jordan, Egypt and so on

We always provide high quality solar vacuum tube, with high quality borosilicate glass 3.3, gradual change of CU-SS-ALN/ALN selective absorption coating,fooliwng pictures is our test of mechanical shock resistance.

1, 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)

2,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