Progressive centralized lubrication system
SKF ProFlex SKF Lubrication Systems Germany AG

Progressive lubrication systems designed for oil, semi-fluid grease and hard grease NLGI grades 000 to 2

System description
The quantity of lubricant delivered by the pump is divided up by the progressive feeders in keeping with the number of sections and their individual metering rates. From there it is passed on to the lubrication points.

A progressive feeder consists of three or more sections, each containing one piston. The pistons apportion the quantity and deliver the lubricant while regulating each other at the same time. The piston diameter and piston travel determine delivery volume. Each piston can only dispense its supply of lubricant once the previous piston has completed dispensing. So the lubrication is progressive.

Applications
An alternative to the single-line system when greases have to be dispensed.

Progressive feeders are not only suited to grease, they can also be used to divide up the oil flow in the medium feed-quantity range. They are frequently used in circulating oil systems if the simpler restrictor systems do not fulfill the safety requirements and the demands for accuracy, especially with fluctuating back pressures.