Solar Energy Collectors

Chromagen has fine-tuned the design and manufacture of solar collectors to an art. Collectors are assembled using quality materials and advanced techniques, which result in highly efficient, durable products you can depend on for years to come.

The products are environmentally friendly, remarkably versatile and offer high performance even in extreme environments.

The wide range of solar collectors enables Chromagen to provide cost-effective solutions which comply with a variety of international standards, and fulfil different requirements.

Absorber Plate

1. Absorber Plate
The Absorber Plate consists of copper fins ultrasonically welded to copper risers; this provides excellent heat transfer between the fins and risers, ensuring high efficiency. Superlative selectivity offers a high absorption rate of 95% with extremely low emissivity.

2. Absorber Plate Coating
The absorber plate is coated with either sputtering coating, or with black chrome on nickel, or with a special selective solar paint. All provide a superior surface, highly efficient for solar energy applications. This also allows for excellent energy absorption even in cooler climates.

3. Insulation
The absorber plate is encased in a 30 mm rigid polyurethane foam that meets US and European standards. A 20 mm layer of mineral wool protects the polyurethane, while providing additional insulation for retainment of the heat in the collector.

4. Solar Glass Glazing
The single pane 3.2 mm solar glass is patterned to reduce reflection and is tempered to maximize strength and durability. The low iron oxide content of 0.03% enables a high solar transmittance of 91%.

5. Casing
Stainless Steel Stainless steel casing provides maximum protection against corrosion, particularly important for costal locations with a high salt content.

6. Gasket
The all-around EPDM gasket is highly resistant to temperature variations and UV radiation. Further, the gasket absorbs the differential expansion of frames and glazing.

7. Tubing Grid
5/8'' copper risers brazed to 7/8'' copper manifolds with optimal flow distribution.

8. Piping Connection
Four BSP female brass connections.

9. Back Plate
Made of a black polypropylene sheet.

10. Aluminium Foil
Attached to the insulation. The aluminium foil acts as a barrier against out-gassing.