The Oil Circulatory System (OCS) /Lube Oil System (LOS), ensures continuous lubrication and cooling for various Moving parts and Bearings in industrial machinery. It features large reservoirs, heavy-duty pumps, and a network of delivery lines tailored for plants like Cement, Sugar, Paper, Power generation, and Steel. The system efficiently distributes oil to lubrication points such as Gearboxes and Bearings, with return lines directing used oil back to the reservoir under gravity. Control valves can be employed to regulate pressure and flow as per system complexity and budget constraints.