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Mega collector

The MEGA collector is a large collector, specially developed for solar thermal local and district heating applications, as well as process heating systems. The large collector diameter of D = 64 mm enables large collector areas with minimal piping. By interconnecting collector segments, a collector with up to 250 m² can be realized without additional piping at a pressure drop of 1 bar. The physically switching off heat pipes prevent overheating, steam formation and the resulting cavitation impacts. The MEGA collector can be equipped with 3 different tubes.


the advantages of the Mega collector

With the MEGA collector, which has a DN 65 collector tube, a collector with up to 500 m² collector surface, can be connected to a line cable. The previously necessary small-scale division with elaborate pipe connections is omitted. The MEGA collector uses tubes of the Heat Pipe design. These tubes are physically limited to 120°C by default and can neither overheat nor produce unwanted vapor when properly pressurized. Cavitation impacts are excluded by this technology. The cut-off temperature of the tubes can be set between 120 ° C - 160 ° C according to customer requirements.

  • Large collector areas without additional piping, low costs and high yield

  • Pre-assembled collector elements that are connected to a large collector with quick-release couplings

  • Overheating protection, no steam formation even without heat loss, smaller expansion vessels and system protection, low temperature loads

  • Flat absorber coated on both sides to absorb direct and reflected radiation

  • Tube rotated through 360° for re-adjustment from a non-100% southern orientation

  • Robust glass-metal connection for permanent maintenance of the high vacuum in the tube

  • Nano-coating on each tube for maximum transmission

  • Tinox coated absorber and pipe system in vacuum no material aging or loss of performance

  • High hail resistance (HW)

  • Dry integration of the tube into the collector, making it changeable in operation


  • technical data collector segment

    • Gross area:

      12,99 m²

    • Absorber area:

      12,86 m²

    • Aperture area:

      11,60 m²

    • Power per segment:

      8,2 KW

    • Cut-off temperature tube:

      120°C – 160°C

    • Frame dimensions:

      L 2184 x B 5950 x H 212 mm

    • Weight:

      368 kg

    • Number of tubes:

      78

    • Tubes hailstorm tested after:

      DIN EN 12975-2:2006

    • Connection:

      Dry

    • Collection tube dimension:

      68 x 2 mm

    • Minimum flow:

      600 l/h

    • Insulation:

      Sandwich insulation consisting of

    • External insulation:

      Polyurethan rigid foam (PUR/PIR) laminated with aluminum foil on both sides; thermal conductivity 0,021 – 0,024

    • Internal insulation:

      High-temperature rigid foam (B2 HT 40); thermal conductivity 0,023 – 0,026

    • Solar Keymark:

      011-7S2827 R


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