An air separator is a protective device that removes dissolved air and air bubbles from water caused by temperature and pressure variations in heating, cooling, and domestic hot water systems. Air accumulation in the system accelerates corrosion, causes cavitation and pump noise, reduces heat transfer efficiency, and leads to heating problems on upper floors. The MIT air separator eliminates these effects at the source, ensuring stable, quiet, and efficient system operation.

In the MIT design, special stainless steel separators integrated into the device body control the flow, promoting the growth and adhesion of microbubbles to the surface. Accumulated air is expelled through the automatic air ejector located at the top. The abrupt change in flow direction and the enlarged cross-section reduce bubble mobility in the water, while at the bottom, sediment and condensate are drained in a controlled manner through the drain fitting. Thus, two effective functions—continuous air purging and system cleanliness maintenance—are combined in a single device.

Air is most easily separated where the water is hottest and the static pressure is lowest; therefore, in heating systems, the air separator is usually placed near the boiler outlet and the expansion vessel connection, upstream of the pump suction. In cooling systems, its placement on the hot water return line protects the heat exchanger by separating insoluble gases before they enter the chiller. The installation must respect the direction of the flow arrow, allow access to the air separator at the top of the unit, and connect the lower drain line to a suitable drain.

The choice of separator body depends on the pipe diameter, nominal flow rate, operating temperature and pressure range, and flow direction. In most applications, a separator body with the same diameter as the nominal pipe diameter is selected; for high flow rates, a larger diameter may be preferable to maintain the internal flow velocity within the optimal range. If the installation layout, expansion point, service area, and desired connection type (flange, threaded, or welded) are specified in the design, the geometry of the separation stages, body dimensions, and accessories can be configured with high precision.

Regular inspection of the automatic air vent, checking the top cover, and a brief purge through the bottom outlet ensure proper operation of the unit. Since air release is greater during the first few weeks after commissioning, frequent inspections are recommended; their frequency should then be adjusted according to the system's performance. Rigorous water treatment and regular maintenance of the filters and sediment traps limit particle buildup in the separator and ensure consistent air removal performance.