Southern Cogen Systems Private Limited supplies Self Lubricating Gear Pumps. Southern Cogen Systems Private Limited offers boilers, diffused aeration system, burners, low pressure steam turbines, etc. These Self Lubricating Gear Pumps have internal gear rotor drives. The rotor and the toothed wheel are sealed with a fixed crescent. Internal gear pumps are used in many areas of industry because of their favorable construction and design. The self lubricating gear pumps have the following salient features: