Symbolisches Partnerhandshake: Starke Zusammenarbeit zwischen Akotec und NARVA für innovative Solarthermie-Lösungen. Vertrauen und Partnerschaft für nachhaltige Energie.

Partner Narva

For many years, AKOTEC has successfully collaborated with NARVA, a renowned manufacturer of high-quality vacuum tubes. These specialized full vacuum tubes are a key component of our high-performance solar collectors, ensuring maximum efficiency and long service life. Together, we are setting new standards in solar thermal energy and offering innovative solutions for sustainable energy generation. The close partnership between AKOTEC and NARVA stands for quality made in Germany and guarantees our customers reliable products at the highest level.

Discover how our collaboration with NARVA is helping to make solar thermal systems even more powerful and future-proof!

Infos about Narva

Since 1966, NARVA has stood for high-quality glass manufacturing and technological innovation. With the launch of full vacuum tube production in 2005, NARVA set new standards in the solar thermal industry. These high-efficiency Narva tubes are essential for modern solar collectors and are recognized worldwide for their performance and sustainability.

Founded in 1966 as a light bulb factory in Brand-Erbisdorf, NARVA gradually specialized in the production of fluorescent lamps, tanning lamps, and more. As the glassworks modernized, the company evolved further and began focusing on innovative technologies.

Today, NARVA is internationally recognized in the field of solar thermal energy through the production of Narva tubes. These full vacuum tubes are supplied to leading solar collector manufacturers such as AKOTEC and are considered a benchmark in the industry.

NARVA is a leading provider in the fields of glass manufacturing, vacuum technology, and coating processes. With a strong commitment to sustainability, the company successfully entered the solar thermal market in 2005. As early as 2007, NARVA launched its first flow-through full vacuum tube.

These Narva tubes impress with exceptional performance and efficiency. Their success led to the registration of intellectual property rights and patents, particularly for the unique high-performance heat pipe, which offers outstanding efficiency and has become an essential component in modern solar collectors.

Why Narva?

NARVA Glass-to-Metal Seal

To prevent issues such as vacuum loss and glass breakage, NARVA has developed an especially robust glass-to-metal connection. In this process, the glass is placed around a metal cap and fused with it. This technique eliminates tensile stress on the glass, making it more stable and durable. Unlike many other products, no adhesives are used here — instead, the glass is permanently bonded to the metal, similar to the method used in barometer capsules. This ensures that the NARVA tube remains reliably sealed and highly resistant to breakage.

Akotec Solarthermie Glas-Metallverbindung von NARVA: Hochwertige Verbindungstechnologie für Vakuumröhrenkollektoren zur effizienten Wärmeübertragung. Ideal für langlebige Solaranlagen.

Narva and AKOTEC

We are proud of our long-standing partnership with NARVA – a company that stands out through outstanding innovation and exceptional craftsmanship in tube production. This partnership is particularly meaningful to us, as our AKOTEC Managing Director knows the quality and performance of NARVA products firsthand, having worked there himself. That’s why we stand 100% behind these premium products made in Germany. This strong connection means the highest level of reliability and exceptional performance for both us and our customers. The many positive responses and successful projects from our clients confirm that, together with NARVA, we are on the right path.

Querschnitt einer Solarthermie-Vakuumröhre mit Beschriftung der einzelnen Schichten. Von außen nach innen sind sichtbar: die Vakuumschicht, das Doppelglas, eine Luftschicht und das Absorberblech. Farbige Pfeile verdeutlichen den Wärmefluss im Inneren der Röhre.

Standard Double-Walled Tubes

Standard double-walled tubes consist of two layers of glass enclosing a vacuum. However, the front end is sealed with a cap, allowing some air exchange between the interior of the tube and the surrounding environment. This can lead to heat losses and moisture buildup inside the tube. In winter, condensation may form, which could damage the tube if it freezes. Additionally, dirt and corrosion can impair the function of the absorber plate, reducing the overall efficiency and durability of the system.

Querschnitt einer Solarthermie-Vollvakuumröhre mit Beschriftung der Hauptkomponenten. Deutlich zu erkennen sind der äußere Glaszylinder, das innenliegende Absorberblech sowie der dazwischenliegende Vakuumbereich zur thermischen Isolierung

The Single-Walled NARVA Tubes

The single-walled NARVA full vacuum tubes are designed so that the interior is completely sealed off from ambient air. Similar to a light bulb, the inner section containing the absorber is fully enclosed in a vacuum. This construction prevents heat loss, moisture, and dirt from entering the tube. These tubes are manufactured by NARVA, an East German company with deep expertise in glass and lighting technology, producing around 200,000 fluorescent tubes every day.

Additional Partner

We also cooperate with other experienced solar thermal partners to develop innovative solar systems for both residential and commercial customers. Our focus is on sustainable and high-performance solutions that combine technology and environmental responsibility. Through continuous research, we optimize our solar thermal systems and apply the latest technologies to ensure maximum efficiency.

More About us

Stapel aus gefalteten Zeitungen mit unscharfem, warm beleuchtetem Hintergrund.

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Ein Kind im Superheldenkostüm mit rotem Umhang und Maske steht auf einer Wiese, hebt den Arm heroisch in den Himmel, während die Sonne im Hintergrund untergeht.

AKO-FUTURE

Forward-thinking and eco-friendly: AKO-FUTURE stands for sustainable innovation and cutting-edge technology. Get inspired and discover more about our ideas!

Gebäude von AKOTEC SOLARTHERMIE mit grün-gelber Fassade, großem Firmenlogo und Schmetterlingssymbol an der Wand, umgeben von Büschen und blauem Himmel.

15 years of AKOTEC

A decade of innovation: 15 years of AKOTEC. We represent quality and sustainability in solar thermal energy. Let’s celebrate this milestone together while looking back on our journey!

Drei lachende junge Erwachsene in legerer Kleidung umarmen sich freundschaftlich im Freien bei Sonnenschein, mit Bäumen im Hintergrund.

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