Oil Circulatory System (OCS) Lube Oil System (LOS) - In this type of system, the oil is continuously supplied to various moving parts and bearings. The oil not only acts as a lubricant, but also as a coolant by consuming the heat generated in the bearingsmoving parts. The oil after lubrication is returned to the reservoir. These systems are large, employing reservoirs of capacities ranging from a few hundreds of liters to thousands of liters. The pumps are of heavy duty, intended for continuous running, with flow rate ranging from few tens of LPM to few thousands of LPM. These systems are widely used for plants like Cement, Sugar, Paper, Power generation, Steel as well as for heavy duty machineries. Generally, there are a number of points to be lubricated in any of the above mentioned plants. These lubrication points being various gear boxers, bearings, gears, etc. Depending upon the density of these points in a particular area, a common OCS is taken which feeds all these points. The return lines from each of these points are fed back to the reservoir of OCS. The OCS is generally placed in a basement and returning oil runs under the force of gravity by itself. All return lines have a slant towards the OCS so that returning oil doesn't give any back pressure to the oil in the delivery lines. Depending on the complexity of the system and the fund availability, the pressure and flow in each line can be governed through a set of control valves.

Oil Circulatory System (OCS) Lube Oil System (LOS) - In this type of system, the oil is continuously supplied to various moving parts and bearings. The oil not only acts as a lubricant, but also as a coolant by consuming the heat generated in the bearingsmoving parts. The oil after lubrication is returned to the reservoir. These systems are large, employing reservoirs of capacities ranging from a few hundreds of liters to thousands of liters. The pumps are of heavy duty, intended for continuous running, with flow rate ranging from few tens of LPM to few thousands of LPM. These systems are widely used for plants like Cement, Sugar, Paper, Power generation, Steel as well as for heavy duty machineries. Generally, there are a number of points to be lubricated in any of the above mentioned plants. These lubrication points being various gear boxers, bearings, gears, etc. Depending upon the density of these points in a particular area, a common OCS is taken which feeds all these points. The return lines from each of these points are fed back to the reservoir of OCS. The OCS is generally placed in a basement and returning oil runs under the force of gravity by itself. All return lines have a slant towards the OCS so that returning oil doesn't give any back pressure to the oil in the delivery lines. Depending on the complexity of the system and the fund availability, the pressure and flow in each line can be governed through a set of control valves.