Karnataka Engg Enterprises manufactures Closed Air - Circuit Water [CACW] Cooler. Karnataka Engg Enterprises also manufactures wide range of air coolers. Closed Air - Circuit Water [CACW] Cooler utilizes water in the tubes to cool the hot air from the electric machine being blown across the tube bundle. This Cooler finds application in Electric Generators, Electric Motor [A.C & D.C]. This cooler is available in a wide variety of fins of different materials to suit any requirement. Optional instrumentation and accessories like water leakage detectors, pressure gauges, and compensators can also be provided with it.