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SEIDO VACUUM TUBES   SEIDO1     SEIDO2     SEIDO5     SEIDO10     SOLAR COLLECTORS   Heat pipe vacuum tube collector     SEIDO1 Series     SEIDO5 Series     SEIDO10 Series   Direct flow vacuum tube collector     SEIDO2 Series   Flat plate collector     PG Series   Roof mounting kits for SEIDO series collector     RM series       SOLAR WATER HEATER   Heat pipe vacuum tube water heater     SP Series     BP Series     DP Series     MDP Series   Flat plate water heater     SPPR-2.25/155   All glass vacuum tube water heater     SPQBP series

Sunda Excelling in Solar Technology         SUNDA'S SEIDO EVACUATED TUBES were developed by Sunda and Daimler-Benz Aerospace with support from UNDP in 1986. Over ten years of co-operative research and development by Sino-German experts resulted in today's design. Sunda's vacuum tubes are suitable for OEM manufacturers and can be used for various kinds of installations. Absorber and heat pipe are mounted in a highly stable borosilicate vacuum glass tube. This prevents damage and the heat loss that occurs in conventional solar collectors. The absorber is sputtered with aluminium nitride selective coating to ensure high absorption and highest efficiencies even on cloudy days.         SUNDA SOLAR COLLECTORS offer elegant design and efficiency in any application. The collectors are suitable for single unit installations or large-scale installations for heating or air conditioning projects. The heat pipe tubes are not dirctly connected to the water circle and therefore tubes can easily be replaced or added. Sunda collectors can be mounted even on smallest areas and verifiably achieve higher temperatures than flat collectors. The high quality manufacturing ensures a lifetime of at least 15 years without loss of efficiency.         SUNDA SOLAR WATER HEATERS combine SEIDO solar collector and storage tank into one product. The sanitary domestic water heaters consist of collector, hot water tank, stand profiles and reflector. Sunda offers water heaters equipped with heat pipe vacuum tubes, flat plate collectors or all glass vacuum tubes. Its environment-friendly technology, reliability and low price have driven its dissemination throughout the world. The systems can provide 70% of energy required for water heating over the course of a year and practically cover 100% during the summer.

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