Features

The pump is lightweight, compact and contains a minimum of working parts for easy maintenance. Each fluid pump head is equipped with a stainless steel plunger, ball checks, ball check springs, top seat, top bushing, bottom bushing, adjustable VEE type packing and a priming valve. The packing yoke is equipped with a drain to monitor for possible packing leaks. Because of the sealed bearings, the unit is oil-less. The 5100 Series performs accurately because (1) the head is designed for high volumetric efficiency, (2) a positive trip mechanism assures fine control of plunger stroke length, and (3) the speed is regulated by controlling the exhaust gas discharge flow which creates a rapid fluid discharge with slow suction.