The patented PurgeX® pump is one of the most unique and successful products in industry today.  Since 1988, thousands of satisfied customers have made PurgeX® their choice for reliable and precise lubrication.  It is called PurgeX® because entrapped air and other impurities are automatically "purged" from the system.  In lab tests, over 360,000,000 cycles have been achieved without appreciable wear. Precise metering can be achieved over a wide range of adjustability.  By dispensing very small amounts of liquid or grease, environmental contamination is greatly minimized.  Precision output and excellent repeatability provide higher productivity rates.