Solar Collectors

Non-Pressurized Vacuum Tube Solar Collector

Working Principle:

Vacuum tubes absorb the solar radiation, and convert it into thermal energy, then the thermo energy heats up the water in vacuum tubes. The heated water floats up to manifold and heat the water flows through manifold. Part of the cold water through manifold goes down to fill the vacuum tube. The water in the system is finally completely heated by this circulation.

Photos and Specifications:

Non-Pressurized Vacuum Tube Solar Collector

Models
Descriptions
RHD-S 58-1800-25 RHD-D 58-1800-50
Manifold Case (Octagon) Color steel with coating, 0.4 mm thick,
150x170 mm.
Color steel with coating, 0.4 mm thick,
150x170 mm.
Inner Case (Square) Stainless steel 304/2B, 0.5 mm thick, 85x85mm Stainless steel 304/2B, 0.5 mm thick, 85x85mm
Insulation Polyurethane, 37mm & 47mm Polyurethane, 37mm & 47mm
Vacuum Tube AL-N-AL or SS-CU-ALN/ALN 58-1800 AL-N-AL or SS-CU-ALN/ALN 58-1800
Tube Distance 80 mm 80 mm
Frame & Stands Color steel, 1.5 mm Color steel, 1.5 mm
Aperture Area (EN) 2.35 m2 4.70 m2
Installed Dimension 1970 (Length) x 1415 (Width) x 1373 (Height) (mm) 3778 (Length) x 1702 (Width) x 1388 (Height) (mm)
Tube quantities, materials, and sizes can be adjusted according to customers’ requirements.