The Hillen high-performance flat plate collectors

This is what we mean by a well-constructed and powerful flat plate collector

Calpak can boast of 30 years of experience when it comes to the design and the production of tough high-quality collectors and is now offering a highly selectively laser-welded flat plate collector delivering an extraordinary performance.

• highly selective flat plate collector
• simple aluminum sheet absorber
• 10 laser-welded, vertical copper tubes
• thick polyurethane insulation with aluminium vapor protection plate
• low-iron, transparent 3 mm tempered glass
• frame made of anodized aluminium

Calpak offers many advantages:

• the GA flat plate collector has a certified life expectancy of 25 years.
• the polyurethane foam collector insulation guarantees low thermal losses, ensures a homogeneous and stable construction and offers very good moisture protection for the collector.
• the collector frame is made of triple-folded aluminium and has therefore only one welded joint
• the surface of the collector is made of hardened, low-iron, 3 mm thick solar glass.
• using state-of-the-art laser-welding technology, a large number of copper tubes (10 in total) are mounted onto the selectively coated absorber and make sure the collector has a high yield