Solar Collectors
Our solar collectors are manufactured by Rand energy systems Ltd. 

Our solar collectors are manufactured of noble materials, according to a proprietary design. Our collectors offer an unmatched level of efficiency and provide a significantly long life. 

1. Transparent cover - 4 mm low iron tempered glass with a minimum transmittance of 91.5%.

2. Absorber Plate-
EL-AT SERIES: 0.5 mm full plate aluminum absorber coated in high efficiency blue sputter Titanium Oxide coating welded by laser to the copper risers.
RAL-S and R-S Series: 0.2 cooper strips welded ultrasonically to the copper risers coated in selective chrome coating. 
RAL-P and R-P Series: 0.2 mm copper strips welded ultrasonically to copper risers coated in special solar paint. 

3. Frame - Collector's frame is available in.
a) Extruded Aluminum, Anodize, or powder paint in standard grey color. Special color according customer requirements availble. 
b) Galvanized white prepainted steel. 

4. Copper risers - 
EL-AT series: 8 mm copper tubes
R-S, RAL-S, RAL-P, R-P: 3/8",1/2" copper tubes.

5. Manifold - 
EL-AT series: 22 mm copper tube
R-S, R-P, RAL-S, RAL-P: 7/8" 11/8" copper tubes welded to 3/4" BSP female thread adaptors.

6. Aluminum foil- 100 microns Aluminum foil to protect polyurethane casting.

7. Insulation - CFC Halogen free polyurethane or high density rock wool boards.
EL-AT series: unique mixture of glass wool insulation bonded together with CFC Free high density polyhorytane casting 

8. Back plate - P.V.C /Polypropylene or Aluminum sheet.

All collectors undergo test pressure of 12 bars whereas permitted working pressure is 8 bars .