
High-quality district heating valves
for heat generation and distribution

Kähler Industrie-Armaturen is the partner for the district heating sector
The district heating sector is characterized by sustainability and ecological responsibility. Through the efficient use of energy sources in central power plants as well as waste heat from industry and the subsequent distribution of heat via well-developed district heating networks, district heating makes an important contribution to reducing CO₂ emissions and conserving fossil resources.
District heating systems are divided into the areas of heat generation and distribution, each of which places its own requirements on the components used:
- Heat generation (power stations): Valves with large nominal diameters and high temperature resistance.
- Distribution (district heating networks): Solutions for safe, efficient heat transfer to the end consumer.
Kähler offers high-quality valves for both areas of application and ensures that the entire district heating infrastructure - from generation to distribution - can be operated in a well thought-out and sustainable manner.
Why are ball valves particularly suitable for district heating?
In der Fernwärmeversorgung gibt es grundsätzlich eine Vielzahl an Armaturentypen, die für verschiedene Einsatzbereiche ausgelegt sind. Neben Kugelhähnen kommen auch Absperrklappen, Ventile, Schieber und metallisch dichtende Kükenhähne zum Einsatz:
- Absperrklappen bieten eine platzsparende Lösung und eignen sich besonders für Anwendungen mit begrenztem Bauraum. Sie verursachen jedoch durch die Klappenscheibe im Durchgang einen erhöhten Strömungs-widerstand, was zu schlechteren Durchflusswerten führt und die Energieeffizienz beeinträchtigen kann. Zudem schließen sie nicht so zuverlässig dicht, was zu möglichen Leckagen führen kann.
- Ventile ermöglichen eine präzise Steuerung des Durchflusses, sind jedoch aufgrund des erhöhten Widerstands und der weniger guten Durchflusswerte energieintensiver. Sie erfordern außerdem regelmäßige Wartung, da sie anfällig für Verschleiß sind.
- Schieber bieten eine gute Dichtheit und werden häufig in Anwendungen mit langsamer Öffnungs- und Schließfunktion verwendet, vor allem bei größeren Nennweiten. Allerdings können sie im Betrieb durch Verschmutzungen undicht werden, was ihre Zuverlässigkeit beeinträchtigen kann.
- Metallisch dichtende Kükenhähne zeichnen sich durch ihre hohe Temperatur- und Druckbeständigkeit aus und sind auch in großen Nennweiten verfügbar. Sie bieten eine gute Dichtheit, sind jedoch teurer und wartungsintensiv, was die Betriebskosten erhöht.
Kugelhähne hingegen bieten eine unschlagbare Kombination aus Dichtheit, Effizienz und Wartungsfreiheit, was sie zur bevorzugten Wahl für Fernwärmeanlagen macht.
Warum sich in der Fernwärme überwiegend Kugelhähne durchgesetzt haben und wo Kükenhähne weiterhin ihre Berechtigung haben, steht im Vergleich Kükenhahn oder Kugelhahn.
Arrange a consultation
Phone +49 (2174) 7848 - 0 | Email: info@kaehler-armaturen.de

Why Vexve valves for district heating?
We don't have just any ball valves, but the high-quality valves from Vexve, which have been specially developed for the requirements of district heating. Vexve products are characterized by a sophisticated design and numerous advantages that make installation and operation efficient and safe:
With Vexve, you get valves that are specially tailored to the requirements of energy suppliers, municipal utilities and engineering firms and offer a sustainable, reliable solution for your district heating projects.
Why Kähler?
Kähler is your reliable partner in the district heating industry - with an uncompromising focus on quality, service and speed.
Our expertise and our commitment to district heating set us apart:
With Kähler, you are choosing a partner who will support your district heating projects with expertise, flexibility and comprehensive service - for long-term, reliable cooperation.
What Vexve says about us:
„We have a strong, long-standing and reliable partnership with KÄHLER Industrie-Armaturen, based in Burscheid. As the representative of the Vexve Armatury Group for the German market, KÄHLER not only has a wide range of valves for district energy networks, but also offers a hot tapping service with selected Vexve products. KÄHLER is characterized by extensive expertise, a wealth of experience and a broad network in the energy sector, making it a highly qualified and valuable partner for Vexve.“
Testimonials
In 2019, we had Kähler certify us in hot tapping pipes up to DN 100 that were already in operation. The service and cooperation were simply good. We had dimensions over DN 100 several times, so we had to use Kähler's service. That also worked extremely well.
Bonn Netze
We have been a customer of Kähler Armaturen for years and have nothing but positive things to say: competent advice, fast delivery, top quality, reasonable price-performance ratio, professional hot tapping work and friendly and helpful staff. What more could you want?
Energieversorgung Leverkusen
We in the district heating department are extremely satisfied with the cooperation with Kähler-Armaturen, the processing of orders and the fast delivery times are excellent. They are quick to respond and help with technical information. We also greatly appreciate the friendly cooperation.
Netze Duisburg GmbH
We would be happy to advise you!
Arrange a non-binding consultation today.
Tobias Bunse
Phone: +49 (2174) 7848 - 0
E-Mail: info@kaehler-armaturen.de

Our ball valves for district heating: products in detail
The following products are available in our online shop. Further sizes and versions on request.










