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.

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Why are ball valves particularly suitable for district heating?

Maximum tightness

The design of the ball valves ensures complete tightness both within the system and to the outside. This reliably prevents leaks and the system remains safe and efficient in operation.

Robust, durable and reliable

Ball valves are designed for extreme operating conditions and can withstand both high temperatures and pressure loads, making them ideal for the requirements of district heating generation and distribution.

Double block and bleed with test valve

Our trunnion-mounted ball valves have the “double block and bleed” function, which is characterized by two independent seals. This means that the ball valve acts as a double shut-off, offering maximum safety. There is a test valve between the two seals, which makes it possible to safely check and release the pressure in the isolated area. This function ensures that potential leaks can be detected at an early stage - ideal for reliable leak testing and maximum operational safety.

Optimized energy efficiency

Our ball valves are caracterised by minimal flow resistance, allowing the medium to be transported without significant pressure losses. This increases the overall energy efficiency of the system and reduces energy consumption.

In the district heating supply, there are basically a variety of valve types that are designed for different areas of application. In addition to ball valves, other types such as butterfly valves, valves, gate valves and metal-seated plug valves are also used:

Butterfly valves offer a space-saving solution and are particularly suitable for applications with limited installation space. However, they cause increased flow resistance due to the disc in the passage, which leads to poorer flow values and can impair energy efficiency. In addition, they do not close as reliably, which can lead to possible leaks.
Valves allow precise control of the flow, but are more energy-intensive due to the increased resistance and lower flow values. They also require regular maintenance as they are prone to wear and tear.
Gate valves offer good tightness and are often used in applications with slow opening and closing functions, especially in larger nominal sizes. However, they can leak during operation due to contamination, which can affect their reliability.
Metal-seated plug valves are characterized by their high temperature and pressure resistance and are also available in large nominal sizes. They offer good tightness, but are more expensive and require more maintenance, which increases operating costs.

Ball valves, on the other hand, offer an unbeatable combination of tightness, efficiency and maintenance-free operation, making them the preferred choice for district heating systems.

Arrange a consultation

Phone +49 (2174) 7848 - 0 | Email: info@kaehler-armaturen.de

Zapfengelagerte Kugelhähne – Produktserie mit Höchstleistung aus dem Hause Vexve

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:

High-quality workmanship

Vexve valves are manufactured from first-class materials and offer exceptional durability that is ideally suited to the high demands of the district heating industry.

Short delivery times

Vexve relies on efficient supply chains and short delivery times to cover your project requirements quickly and reliably.

Good insulating properties

The valves can be excellently insulated, which minimizes heat loss and thus contributes to the efficiency of the entire system.

Easy installation thanks to reduced weight

The Vexve design is optimized to reduce the weight of the valves as much as possible. This simplifies installation and handling on site, saving time and money.

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:

Fast response time

We know how important time is in your projects. That's why we usually provide you with a customized quote within 2 hours, so you can plan quickly and accurately.

In stock for fast delivery times

Thanks to our extensive warehouse, we are able to deliver many products directly from stock. This means we can guarantee short delivery times and support your projects on time.

District heating experts

District heating is our total focus. With our expertise, association memberships and the hot tapping service as a special service, we offer you comprehensive competence and customized solutions for your district heating projects.

Lifelong support

Kähler's service does not end with delivery. We look after the products we supply for their entire life, even well after the warranty has expired. Your trust is our motivation and your satisfaction is our goal.

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

What our customers say about us.

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

FAQ – Häufig gestellte Fragen zu Fernwärme-Armaturen

Was ist der Zweck von Fernwärmearmaturen?

Fernwärmearmaturen spielen eine zentrale Rolle in der Regelung, Absperrung und Sicherheit von Fernwärmeanlagen. Sie sorgen dafür, dass das Heizmedium zuverlässig und sicher vom Erzeuger bis zum Endverbraucher transportiert wird und bei Bedarf abgesperrt oder kontrolliert werden kann. Dies ist entscheidend für die effiziente und sichere Funktion des gesamten Systems.

Welche Besonderheiten bieten Ihre Fernwärme-Kugelhähne?

Unsere Kugelhähne (von Vexve) wurden speziell für den Einsatz in Fernwärmeanlagen entwickelt. Sie zeichnen sich durch eine stabile Konstruktion und hochwertige Materialien aus und bieten ein ausgezeichnetes Preis-Leistungs-Verhältnis. Diese Kugelhähne sind langlebig, robust und gewährleisten höchste Sicherheit und Effizienz in Fernwärmeanwendungen.

In welchen Anwendungsgebieten kommen Ihre Armaturen zum Einsatz?

Unsere Armaturen sind sowohl für die Wärmeerzeugung als auch für die Wärmeverteilung in Fernwärmesystemen konzipiert. Sie eignen sich für Kraftwerke und große Versorgungsnetze sowie für spezifische Industriezweige, die Abwärme für Fernwärmezwecke bereitstellen. Die hohe Zuverlässigkeit und Flexibilität machen sie zur idealen Wahl für verschiedenste Einsatzbereiche.

Können Sie Ausschreibungstexte bereitstellen?

Ja, wir unterstützen Sie gerne mit detaillierten Ausschreibungstexten, die Ihnen bei der Planung und Realisierung Ihrer Projekte helfen.

Welche Größen und Druckstufen können Sie liefern?

Wir bieten Kugelhähne in Größen von DN10 bis DN1200 an und können Druckstufen von PN16, PN25 und PN40 abdecken. So finden Sie bei uns die passende Lösung für unterschiedlichste Anforderungen und Anwendungen in der Fernwärme.

Haben Sie auch zapfengelagerte Kugelhähne im Angebot?

Ja, wir führen auch zapfengelagerte Kugelhähne, die sich besonders für hohe Belastungen und anspruchsvolle Betriebsbedingungen eignen.

Bieten Sie auch einen Anbohrservice an?

Ja, als zusätzlichen Service bieten wir einen professionellen Anbohrservice (und Anbohrkugelhähne) für die Fernwärme an, der die sichere und präzise Bearbeitung bestehender Leitungen ermöglicht.

Welche Anschlussarten sind verfügbar?

Wir bieten unsere Armaturen mit verschiedenen Anschlussarten an, darunter Schweißende, Flansch und Gewinde. Damit stellen wir sicher, dass Sie die optimale Verbindung für Ihr System finden.

Welche Arten der Betätigung gibt es?

Unsere Armaturen sind in verschiedenen Arten der Betätigung erhältlich. Zu den Optionen gehören Handhebel, Getriebe mit Handrad sowie elektrische, pneumatische und hydraulische Antriebe, sodass Sie je nach Anwendung die passende Steuerungsmöglichkeit wählen können.

Bieten Sie Armaturen mit vollem oder reduziertem Durchgang an?

Ja, unsere Kugelhähne sind sowohl in voll durchgängigen als auch in reduziert durchgängigen Varianten erhältlich. Der volle Durchgang minimiert Strömungsverluste und maximiert den Durchfluss. Der reduzierte Durchgang ist eine kostengünstigere Alternative, weist jedoch schlechtere Durchflusswerte auf und eignet sich daher für Anwendungen, bei denen der Durchfluss weniger kritisch ist.