Gear pumps for single-line and circulation lubrication systems
Gear pumps like the models of the MFE series are suitable for the supply of lubricant in single-line and circulation lubrication systems with central supply of the lubricant.
Lubrication systems with single-line pumps work intermittently, which means that the lubricant is transported to the designated lubrication points depending on the machine cycle or at defined time intervals. With the help of a single gerotor pump, a large number of lubrication points can be supplied with fresh grease or oil in order to compensate for the continuous losses due to evaporation and aging. Gear pumps that are used in circulating lubrication systems, on the other hand, provide a constant volume flow of lubricant, for example to lubricate the bed track guides of machine tools.
In addition to the gear pump, which is the heart of the lubrication system, the central lubrication system essentially consists of a metering device for precise metering and allocation of the lubricant as well as tubes. In addition, control units and monitoring devices for checking the system and other technical components are generally used.
Gerotor pumps like the model MFE5-2000+299 are predestined for use in single-line lubrication systems and can be equipped with different lubricant reservoirs depending on the system to be supplied. In addition, numerous additional components for equipping the lubrication units are available.
The technical basics of the gear pump
Gear pumps such as the model MFE5-2000+299 belong to the group of positive displacement pumps and are mainly used to convey liquids in lubricant systems. Two gearwheels rotate in the housing of the gear pump in order to evenly convey the medium flowing from the inlet to the outlet. In the gerotor pump, which is a subspecies of the gear pump, the driven gear rotates on an eccentric path in the toothing of a ring. Due to the eccentric movement, a very high pressure can be built up in the medium. The type MFE5-2000+299 gerotor pump can be used, for example, in single-line lubrication systems with a counter pressure of up to 28 bar at flow rates of 0.5 liters per minute.
Advantages of lubrication systems with gear pumps
Gear pumps are used both in single-line lubrication systems and in circulating oil lubrication. With circulating lubrication with one circuit, there is a continuously high demand for oil, which is why gerotor pumps are particularly well suited for this system due to their delivery characteristics. The main advantage here is that the volume flow can be individually specified and measured without any problems. In addition, the system is easy to maintain and can be easily modified and combined according to the modular principle. Gear pumps are also used in multi-circuit systems, the main advantages here are backlash-free mounting, low running noise and smooth movements.
Gear pumps such as the MFE5-2000+299 are also very popular in single-line systems. Uncomplicated planning and installation, as well as the precise dosing of the lubricant per lubrication point speak for this system. The single-line system is used primarily in small and medium-sized machines with flow rates of up to 0.5 liters per minute.