Plate heat exchangers

Plate heat exchangers - effective solutions for heating and cooling systems

Plate exchangers are key elements of modern heating and cooling installations.   Their compact design and high efficiency make them indispensable in many applications. At Onninen we offer a wide selection of plate heat exchangers from renowned manufacturers. Our range includes brazed, screwed and welded models. Each type has its own unique advantages and areas of application.

Brazed exchangers are perfect for smaller installations. They are hermetic and do not require maintenance. Screwed models allow for cleaning and servicing. This is the optimal solution for larger systems. Welded exchangers are used in the most demanding conditions. They guarantee tightness at extreme pressures and temperatures.

Types and applications of plate heat exchangers

Our offer includes plate heat exchangers in various configurations:

• Single-flow: -20-3/4", -20-1", -30-1", -40-1", -50-1"
• Dual flow: -30-2", -40-2", -50-2"
• Multi-disc: 10, 15, 20, 24 and 30-disc

Single-flow exchangers are ideal for domestic hot water installations.   They provide fast heating of utility water. Two-flow models are used in more extensive systems. They allow for effective heat exchange between two circuits. Multi-plate exchangers are a solution for large facilities. They allow for precise adjustment of power to needs.

In everyday practice, we see a growing interest in plate heat exchangers. More and more customers appreciate their advantages. Compact dimensions save space in the boiler room. High efficiency translates into lower operating costs. Easy power selection allows for optimal design of the installation.

Plate heat exchanger brands available at Onninen

Our range includes plate heat exchangers from renowned manufacturers:

• Hexonic - modern solutions with high efficiency
• Weberman - reliable heat exchangers for industrial applications
• Danfoss - innovative products with excellent parameters
• Afriso - compact heat exchangers for small installations

Each of these brands has its strengths and specializations.   Hexonic offers technologically advanced exchangers. They are proven in demanding applications. Weberman is synonymous with reliability in difficult working conditions. Danfoss stands out for its innovation and energy efficiency. Afriso specializes in compact solutions for single-family homes.

Our experience shows that choosing the right brand is key. It affects long-term user satisfaction. That is why we always advise taking into account the specifics of a given installation. We analyze operating parameters, maintenance requirements and the investor's budget.

How to choose the right plate exchanger?

Selecting the right plate heat exchanger is a process that requires analysis of many factors. The basic selection criteria are:

• Thermal power - determines the amount of heat to be transferred
• Operating temperatures - influence the choice of materials
• Media flows - determine the number and layout of plates
• Working pressures - determine the construction of the exchanger
• Type of factors - determines the selection of seals

At Onninen we offer professional advice when selecting heat exchangers.   Our specialists help to precisely define the requirements of the installation. We use specialist software for calculations. Thanks to this, we can propose an optimally adjusted solution. We take into account not only technical parameters. We also take into account economic and operational aspects.

Recently, we faced a challenge when designing a large office building. The client needed an efficient domestic hot water system. At the same time, they wanted to save space in the boiler room. We proposed a compact Danfoss XB 06L-1 30 plate heat exchanger. Its high power combined with small dimensions perfectly met the investor's expectations.

In the case of modernization of industrial installations, we often come across the question of durability. The exchangers operate in difficult conditions, with aggressive media. In such situations, we recommend Weberman products. Their solid construction and appropriately selected materials guarantee long service life. Even in the most demanding applications.

For customers looking for solutions for small home installations, we have an interesting proposition. These are PrimoBox AHB separation sets. Available in versions 620, 622 and 642, mounted in an aesthetic cabinet. They contain a complete system with an exchanger, pump and fittings. This is a ready-made solution that significantly simplifies the installation and start-up of the system.

It is worth remembering about the proper insulation of plate exchangers.   It is crucial for the efficiency of the entire system. In our offer you will find dedicated insulations, e.g. APFI -10-20, -21-40, -41-60. They are perfectly matched to specific models. They provide optimal protection against heat loss.

Many customers ask us about the possibilities of regulation in systems with exchangers. We recommend ATV 213 thermostatic valves. They maintain a constant temperature of 45°C on the secondary side. This is an ideal solution for domestic hot water installations. It ensures comfort and safety of use. In systems with several heat sources, AZV 643 switching valves work well. They enable automatic switching between different sources.

Our experience shows that investing in a high-quality plate heat exchanger pays off quickly. It translates into lower operating costs and greater system reliability. That is why we always encourage you to choose proven solutions from renowned manufacturers. At Onninen you will find a full range of plate heat exchangers and accessories. Our consultants will be happy to help you choose the optimal solution for each installation.