Antifreeze valve for heat pumps
The 1″ (DN 25) anti-freeze brass valve protects the system circuit against freezing. When the temperature in the system reaches an average value of 3 °C, the medium flows out of the system through this valve, thus protecting the distribution and equipment against ice formation in the system, i.e. against its damage. Ideal in front of the monoblock thermal (2 pcs).
Technical specifications:
| Max. operating pressure: | 10 bar |
| Material: | DZR brass |
| Operating temperature range: | 0÷65 °C |
| Ambient temperature range: | -30÷60 °C |
| Opening temperature: | 3 °C |
| Closing temperature: | 4 °C |
Why is it important to have quadromag included in the system?
Why should we include QUADROMAG – magnetic dirt separator – in our system?
Is it worth investing?
QUADROMAG magnetic separators are installed in all boiler installations to protect your new equipment as well as the entire system.
Many of us have this device installed on the advice of an installer, but few of us know why such a device is actually needed and what it actually does to the system.
Today, the manufacturer’s warranty for any boiler is conditional on proper use and protection of the appliance, which requires the QUADROMAG filter.
The first step is to install a mechanical dirt filter and a magnetic filter on the return line before the boiler, which is especially important in the case of condensing boilers installed on an existing radiator system, but also with underfloor heating. These two filters can be combined by purchasing the combined magnetic filter QUADROMAG, which combines the functions of a mechanical dirt filter and a magnetic dirt separator into one filter.
The most common causes of malfunctions
Heat exchanger leaks
This is the worst possible scenario, as replacing the heat exchanger can cost up to 300-600 EUR (depending on the type and brand of the boiler), at which point it is already worth considering buying a new one. This happens because impurities and iron oxides circulating in the system settle on the inner surface of the heat exchanger, which leads to higher heat absorption in this area.
This causes the filler to burn out, weakening the material and burning out the heat exchanger at this point. In other cases, it becomes clogged, which prevents the flow of liquid. In this case, the circulation pump and the heat exchanger gradually fail, often all at once.
Circulation pump fails
According to the new EU directive, the three-stage pumps in the units had to be replaced by pumps that could be modulated over the entire speed range. This brings a reduction in energy consumption of up to 70%.
Of course, the new types of pumps require a higher quality of the heat transfer medium. The technical solution is to install a permanent magnet shaft in the pump.
Without the QUADROMAG magnetic filter, magnetized impurities (rust, metal fragments) circulating in the system will stick to the shaft and in 1-2 years the pump will lose its performance and seize.
