Hoval solar collector
WK250A/WK251A
High temperature collector for thermal
solar plants.
Finished collector made of aluminium for
on-roof and free assembly.

High temperature solar collector, consisting of highly selectively (TiNOx) coated copper full-surface absorber (degree of absorption =95 %, degree of emission = 5 %), with welded copper tubes and safety solar glass cover (degree
of transmission = 91 %).
Solar collector in aluminium tub, corrosion resistant.
High-quality thermal insulation made of mineral wool (50 mm).
Incl. connection screwings and gasket (screwings 1“ made of red brass) Delivery Each collector is individually packed with
shrink film and edge protection.

Hoval large-area collectorGFK 5 and 10 m²

• Large-area collector for thermal solar plants in public construction projects, for collector areas > 40 m², for on-roof and flat-roof assembly
• Aluminium-frame large-area collector
• High-capacity solar collector consisting of aluminium absorber with highly selective coating (absorption = 0.95, emissivity =0.05)
• with laser-welded absorber and solar safety glass cover (transmission factor = 0.91)
• in a corrosion-resistant aluminium frame with back panel made from sheet aluminium
• High-quality thermal insulation (rock wool 50 mm)
• for on-roof and flat-roof assembly in largescale public construction projects
• Collector surface area per collector 5 and 10 m²