Special expansion vessels

At Onninen we understand perfectly well how important a role special expansion vessels play in hydraulic systems. They are a key element ensuring pressure stability and compensating for volume changes in the heating or cooling medium. Our extensive range includes a wide selection of special expansion vessels, adapted to various industrial and commercial applications.

We often come across questions about selecting the right expansion tank. It is worth remembering that the right choice depends on many factors. These include: the type of installation, its capacity, operating temperature and required pressure. In our assortment you will find special expansion tanks with different parameters, which allows for precise adjustment to specific needs.

Types of special expansion tanks available at Onninen

Our offer includes a wide range of special expansion vessels. Here are the most important types:

Stainless steel expansion pressure vessels
High-pressure expansion vessels
Expansion vessels for solar installations
Expansion vessels for refrigeration systems
Specialized vessels for fire protection installations

Each of these types of special expansion vessels has its own unique features and applications. For example, stainless steel pressure expansion vessels are ideal for drinking water installations. They guarantee hygiene and durability. In turn, high-pressure expansion vessels are suitable for systems with increased pressure requirements.

In everyday practice, we observe a growing interest in expansion tanks for solar installations. They are resistant to high temperatures and aggressive solar fluids. This is crucial for the efficiency and longevity of solar systems.

Special expansion tanks - brands and quality in the Onninen offer

At Onninen we focus on proven solutions and high quality. That is why in our offer you will find products from renowned brands. We especially recommend special expansion vessels from our own brands: Onnline and FXA. These products combine excellent quality with an attractive price.

The Onnline brand is a guarantee of reliability and durability. The special expansion vessels of this brand are designed with the most demanding installations in mind. In turn, FXA products are the ideal solution for customers looking for a good price-quality ratio.

Recently, we used special Onnline brand expansion vessels in a project for a large office complex. Their efficiency and reliability were appreciated by both contractors and investors. This confirms that our products meet the highest industry standards.

In the case of reorganization of heating systems in industrial facilities, we most often recommend high-pressure diaphragm vessels. Their durability and ability to work in difficult conditions are crucial for the stability of the entire installation.

How to choose the right special expansion tank?

Selecting the right special expansion tank is a key step in designing an installation. At Onninen, we offer not only products, but also expert advice. Our experience shows that the precise selection of the expansion tank has a huge impact on the efficiency and durability of the entire system.

When selecting a special expansion tank, several important factors should be taken into account:

Total installation capacity
Maximum operating pressure
System operating temperature
Type of working medium
Application specifics (e.g. solar, cooling systems)

In practice, we often encounter situations where an incorrectly selected expansion tank leads to installation problems. That is why it is so important to use professional help when choosing.

For example, for a 200-litre solar system operating at temperatures up to 150°C, we recommend a special expansion tank with a minimum capacity of 25 litres. This solution will provide adequate compensation for thermal expansion of the solar fluid.

For industrial installations, where reliability is key, we recommend special expansion vessels with an additional safety margin. Our experience shows that this approach significantly increases the stability and durability of the entire system.

It is worth remembering that the selection of a special expansion tank is not only a matter of calculations. It is equally important to take into account the specifics of a given installation and to anticipate potential changes in the future. At Onninen, we always try to look at the future, advising solutions that will prove useful not only today, but also in the years to come.

We often come across questions about the possibility of using standard expansion vessels in specialist installations. Our answer is clear: in the case of systems requiring specific operating parameters, we always recommend using special expansion vessels. They provide not only better technical parameters, but also greater safety and durability of the installation.

At Onninen we offer comprehensive support in the selection of special expansion vessels. Our specialists are ready to help you analyze your needs, choose the right product and install it correctly. This way, you can be sure that the selected solution will be optimally suited to the specifics of the given project.

Special expansion tanks are products that require special attention not only when selecting, but also during installation and operation. As part of our offer, we also provide training and technical consultations. They help our customers to fully use the potential of the purchased products.

It is worth emphasizing that investing in high-quality special expansion vessels is a decision that brings long-term benefits. It translates into lower operating costs, fewer failures and a longer service life of the entire installation. At Onninen, we always focus on solutions that bring real benefits to our customers.

We invite you to familiarize yourself with our full range of special expansion vessels. Our technical advisors are ready to answer all your questions and help you choose the optimal solution for your project. Together we can ensure that your installation operates efficiently and without failure for many years.