{"id":10479,"date":"2025-03-28T11:58:20","date_gmt":"2025-03-28T10:58:20","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/?p=10479"},"modified":"2025-03-28T11:58:20","modified_gmt":"2025-03-28T10:58:20","slug":"pressurized-and-atmospheric-treg-thermoregulation-units","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/en\/10479\/pressurized-and-atmospheric-treg-thermoregulation-units\/","title":{"rendered":"Pressurized and atmospheric TREG thermoregulation units"},"content":{"rendered":"

Let’s keep on talking about TREG thermoregulation units<\/strong><\/a>. In a previous video we spoke about the different kind of fluids that are employed with TREGs<\/a>. So now let’s talk about the kind of thermoregulation unit based on the kind of fluid employed. Starting with thermoregulating units that employ water<\/strong>. Typically it’s possible to use thermoregulating units with an atmospheric circuit<\/strong> or with a pressurized circuit<\/strong>.<\/p>\n

The first main difference is represented by the working temperature range<\/strong>. Up to 90\u00b0 C<\/strong> it’s clearly possible to use an atmospheric thermoregulation unit. Beyond 90\u00b0 C<\/strong>, due to the boiling point, it’s necessary to use thermoregulating units with pressurized water<\/strong>, which means thermoregulating units with a closed and sealed circuit in order to ensure pressure resistance. As if it was a sort of pressure cooker, clearly with a series of additional safety measures, but it can be a topic for another video.<\/p>\n

Often, pressurized water thermoregulating units are also employed because they offer an advantage, enabling to be installed at any point of the plant<\/strong> without respecting the heights. Let explain: an atmospheric unit, having an open hydraulic circuit, requires to have the expansion tank at the top point of the plant<\/strong>, otherwise, due to the principle of communicating vessels, the system would empty.<\/p>\n

A pressurized thermoregulating unit is basically a closed and sealed circuit<\/strong>, then the water is put into circulation and once the air is vented from the high points of the system the unit can work without problems.<\/p>\n