All glass evacuated tubes made in china used in solar water heater

1.Brief Features

Model:  Ф58*1800mm

Material：high borosilicate glass 3.3

Weight:Â 2.02+/-0.05kgs/pcs

Container loading:Â 40HG: 7100pcs

Warranty:Â 5 years from the date of arrival at destination port

Cooperation model:Â OEM acceptable/CKD parts acceptable

Â

2.Introduction

Evacuated Solar TubeAll glass evacuated tubes are the key component of solar collectors. The evacuated tube is similar to a conventional Dewar flask and consists of two borosilicate glass tubes, a glass with high chemical and thermal shock resistance.The outer side of the inner tube is coated with a sputtered solar selective surface. This coated inner tube is closed at one end and sealed at the other end to the outer tube. The annular space between the outer tube and inner tube is evacuated to virtually eliminate heat loss by conduction and convection.