Chesterton

Every aspect of the Chesterton 280 design is optimized for high reliability in demanding conditions.  The 280 motion tolerant dual seal withstands run-out and end-play common to mixers, double ended or vertical turbine pumps and other rotating equipment.  Instant pressure shift capability eliminates worries under jarring purge and reverse pressure cycles.  Vibration isloated faces thrive under conditions of drag and shear that destroy common seals.  Internal cooling results in stable, long-life sealing.