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Direct Flow - 4 Pages

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Catalogue excerpts

Technical datasheet | Direct Flow Innovative - Powerful - Long-living Entwicklungs- & Vertriebs GmbH

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Product description: DF (Direct Flow) collector systems Based on their hydraulic properties, DF collectors are able to be integrated on any building (pitched roof, facade or even free standing). The s-power collectors are used for solar drinking water, pool heating, furnace support and process heat. The s-power DF tubes carry a coaxial heat-extraction-pipe (pipe within a pipe). The to be heated heat-carrier-fluid runs from the header through the inner pipe towards the lower part of the vacuum tube and then through the outer pipe (outer heat pipe) back towards the header. On its way back to the...

 Open the catalogue to page 2

Product description: Technical facts Technical data s1 Peak performance as per Keymark, with a solar irradiation of 985 W/m2 and a radiation angle of 15° in relation to the aperture area absorber fin of vacuum tube is coated on both sides. *2 Peak performance as per Keymark, with a solar irradiation of 985 W/m2 and a radiation angle of 15° in relation to the aperture area absorber fin of vacuum tubes is coated on one side.

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Product advantages: Errors and omissions excepted. Date 05.12 Vacuum tube collector „Made in Germany“ featuring the NARVA High-Performance-Vacuum tubes „Made in Germany” labeled with the OTTI-Innovation award of 2008. High performance due to the anti-reflex coating on the basis of nano-particles and high selective absorber surface. Hail and impact resistance certified by TÜV - Rheinland Group based on DIN EN 12975-2. Patented glass-metal-connection (by highly experienced glass manufacturer) protects the vacuum permanently. 10 years warranty for vacuum by the manufacturer. Tube connection via plug-in...

 Open the catalogue to page 4

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