1.Glass-metal heat pipe; 2.70 and 102mm diameter available; 3.Copper strip; 4. 2.8mm thick glass tube.

CIB Solar's Glass-metal sealed evacuated heat pipe are suitable for OEM manufacturers and can be used for various kinds of installations. Absorber and heat pipe are mounted in a highly stable borosilicate vacuum glass tube. This prevents damage and the heat loss that occurs in conventional solar collectors. The absorber is sputtered with solar selective coating to ensure high absorption and highest efficiencies even on cloudy days.

Features

Optimal performance through vacuum technology and highly efficient solar selective coating;Tube orientation can be individualized produced;Permanent sealing of the glass-metal by thermocompression technology between envelop glass tube and the stainless steel plug;Low maintenance;Multifunctional collector with vacuum tubes for heating domestic water and support for heating and air-conditioning of buildings;Borosilicate glass 2.0 and 2.8mm wall thickness, Diameter 70 and 102mm;Customized production accepted.

Technical Data

Models	EVT-70		EVT-100
Name	Glass-Metal Sealed Evacuated Heat Pipe
Envelop Tube Diameter	70 mm	70 mm	102 mm	102 mm
Length of tube	1800 mm	2000 mm	1800 mm	2000 mm
Weight	2.1 kgs	2.4 kgs	2.4 kgs	2.6 kgs
Absorber Area	0.11 m2	0.18	0.16	0.27
Solar seletive coating	Aluminum nitride selective coating
Absorptance (AM1.5)	> 0.93
Emittance (80deg.C)	< 0.07
Envelope tube thickness	2.0 mm		2.8 mm
Withstanding max. hailstone	30 mm diameter		35mm diameter

Evacuated Glass-Metal Sealed Heat Pipe