A dosing pump injects precise amounts of chemicals into a tank or pipe. Sometimes called metering pumps, they are small in size with comparatively high discharge pressures and lower flow ranges. They are positive displacement pumps that operate by pulling a measured amounts of high concentration chemical out of 55 gallon drum or carboy and then dosing the reagent into a tank or pipe. A chemical metering or dosing system is made up of reagent holding tank, dosing pump, injector, foot valve, dosing line and controls.
