Motivair closed circuit cooling systems can dramatically cut the operating cost of water-cooled industrial equipment and machinery. Examples are air compressors, turbines, furnaces, hydraulics, or any industrial equipment which requires a source of cool, clean water, in order to function correctly. Evaporative Fluid cooling systems are a combination of an outside evaporative fluid cooler, and a pumping station to circulate a glycol solution between the evaporative cooler and the equipment to be cooled. The limitation of an evaporative fluid cooling system is the fluid can be cooled to 5-10F above the prevailing ambient air wet bulb temperature. (See our pages on Dry Fluid Coolers, Plate & Frame Systems, and Packaged Chillers if higher or lower fluid temperatures are required.)

The evaporative cooler has a galvanized steel tube nest, over which a pump continuously sprays water. A water make-up valve maintains the spray water level in the sump. A centrifugal fan forces atmospheric air across the coil, which causes evaporation of the spray, which in turn cools the fluid inside the tubes. In this way, the ambient air, spray water, or water treatment chemicals never pollute the fluid. The entire assembly is housed in a galvanized steel enclosure.

The pumping station is supplied with one or two pumps, isolation & check valves, air purger & vent, temperature & pressure gauges, plus a NEMA 4 electrical enclosure, which also controls the evaporative cooler. Duplex pumps are supplied with a lead-lag switch, auto-change & alarm.