Solar Water Heater vacuum tubes (47 x1500mm)

DESCRIPTION:

The tubes are super efficient with copper on the layer,absorption rate improve 12% higher than ordinary tubes and with reduced reflector,heat absorption increases 10%,so that whole collection efficiency improves greatly.The working temperatureof a vacuum tube can reach 500 degrees celsius,it’s not easy under sunshine with nothing in i,and it is not easy ageing,fall off,change color and the service life can be 12 years.

SPECIFICATIONS
Thickness – 1.6mm
Connection type – Direct plug
Type – Evacuated tube
Pressure – Unpressurized
Installation – Free standing
Absorptivity – more than 95%
Material – Brosilicate 3.3 glass
Emmitance – less than 4%
Heating system – Thermosyphon(passive)