PHE or Plate Heat Exchanger by Nordic Tec we offer in many variants, our offer includes more than 150 models of heat exchangers. They differ according to different parameters, such as the surface of the plate, the number of plates, connections, pressure resistance, volume or flow.
Most of our models can also be ordered with accessories, which distinguishes our offer and saves time.
We invite you to familiarize yourself with the following series of heat exchangers:
Nordictec-store.com is a heat exchanger shop offering a wide selection of high-quality products. A heat exchanger is a device used in central heating and anywhere that energy needs to be transferred in the form of heat. It is increasingly used in solar installations, various types of boilers including condensing ones, and heat pumps. Nordictec-store.com offers many solutions tailored to the individual needs of customers, from small PHE units for small heating circuits to larger industrial systems. Our shop provides high-quality products and professional advice when choosing the right heat exchanger. By using the latest technology, we can offer exceptionally efficient and cost-effective devices. Choosing the Nordic Tec brand guarantees satisfaction with your purchase and solid technical support. We invite you to check out the models available in our offer!
A plate heat exchanger (PHE), sometimes known as a gasketed or brazed plate heat exchanger - is a device that enables the heat transfer between two media with different temperatures without contacting. Its design consists of thin, twisted or soldered steel plates that are stacked together. Depending on the operating conditions, spatial possibilities, and individual user requirements, the heat exchanger construction may differ slightly - it can consist of a varying quantity of plates with different thicknesses and surface areas.
If you're wondering why it's worth using a heat exchanger in a heating system, it's worth noting its high resistance to damage - even in extreme temperature and pressure conditions a plate heat exchanger works efficiently and maintains its original parameters for a long time (in fact for manyn years if it is sized properly). Furthermore, by using a heat exchanger, you can significantly increase the efficiency of the heating system, enabling effective cooperation between the heating and installation systems. If we add the fact that heat exchangers made of stainless steel work effectively with both fluids (glycol, water) and gases (air), we can conclude that this is a solution characterized by high usability, which finds application in many areas of life.
The working principle of plate heat exchangers is closely related to their structure. The device consists of two circuits (two separate channels) - the first one with a hot medium, supplied by a water jacket fireplace or a district heating network, a heat pump (examples can be numerous), and the second one with a low-temperature medium, such as radiators or underfloor heating. The operation of the heat exchanger consists of transferring thermal energy from thje hot medium to another. The steel plates used to build heat exchangers effectively transfer thermal energy, as a result of which heat easily passes from the medium with a higher temperature to the medium with a lower temperature without the need for the two media to mix.
Heat exchangers can be used, utilizing the above-described operating principle, in many applications. The most common and closest to an average person is the a plate heat exchanger usage in a central heating installation, in which it separates the installation of heating devices operating in a sealed system (e.g. gas boilers, heat pumps) from devices operating in an open system (e.g. a fireplace with a water jacket).
A similar situation occurs, for example, when a part of the installation needs to be filled with non-freezing liquid (glycol) and this part needs to be separated so that it does not mix with the water from the rest of the installation, but so that both parts can transfer heat to each other. The described situation often occurs when connecting heat pumps to heating systems. Therefore, due to the increasing popularity of heat pump heating, plate heat exchanger for heat pumps is becoming more and more widely known device.
The above describes only a small spectrum of plate heat exchanger applications. Actually, there are many more, including refrigeration, but it is impossible to list them all here.
Taking into account the principle of operation of plate heat exchangers described above, it is easy to conclude that they are passive devices that do not generate thermal energy, but only transfer it to other elements of the system. The effectiveness of heat exchangers is influenced by the following factors:
Taking into account the method of plate connection in heat exchangers, there are two types of devices available on the market:
The use of a plate heat exchanger in a central heating installation is particularly justified when we want to create two independent circuits - an open one with the heating boiler (or another heat source) and a closed one with the installation components. Considering that manufacturers of heating fittings often require their products to operate in a closed circuit, the use of a heat exchanger between them and the boiler operating in an open circuit is necessary. Similarly, underfloor heating should operate in a closed circuit, and therefore must be separated from the open circuit heating devices.
The method of installation of a plate heat exchanger depends primarily on the type of device itself. However, it is important to always remember to provide adequate space around the heat exchanger to allow for maintenance and cleaning tasks. During installation, the device should be properly stabilized, and the individual circuits should be connected correctly, with the counter-current flow maintained. Detailed information regarding the installation of plate heat exchangers can be found in the manufacturer's instruction manual included with the product.
Consider using pre-made wall brackets for a heat exchanger offered by Nordic Tec for installation purposes. You can find them in our catalog.
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