MARK4
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Strong performance and durability for high energy savings

Calpak Mark 4 The best solar thermosiphonic system Calpak has created to date! Simplicity of design, with attention to every detail, safety and functionality (Mark4 is protected by European license of industrial design). CALPAK has designed from the ground up a thermosiphonic system that addresses the most important issue: the provision of exceptional performance and thereby enhanced nancial savings. The rst thermosiphonic system with an aluminium support structure for easy installation, superior aesthetics and incomparable durability. We, at CALPAK, with our many years of experience,...

Strong performance and durability for high energy savings The collector's production method is truly innovative. The glass and aluminium base are compressed so as to form a sturdy totality with a prism-like facade. CALPAK uses the latest technology, raw materials of the highest quality and the state of the art production capabilities of its new factory. Above all however, we at CALPAK apply the enthusiasm of our people to create a product that makes us all truly proud. The anodized double walled aluminium prole epitomises our innovation in oering increased durability and enhanced...

annual performance MarkA Technical Specifications Absorber surface treatment Absorber welding Absorption coefficient Emission coefficient Casing material Glass cover Inner tank design Tank/heat exchanger material Welding method Corrosion protection Cathodic protection Anti-Frost protection Connection with diesel/gas burner Connecting pipes Mounting frames high selective (TiNOX) double-wall marine grade anodized aluminium rock wool Solar-Keymark, SRCC by Interdomo (deep side cups and internal welding ensure perfect enameling) robotized with double quality control at 15 bar propylene glycole...