By most definitions, metering pumps handle small or low flow volumes that are precisely dispensed at pre-set intervals. Most metering pumps, however, need to vary flows either manually or through some form of PLC control. The dispensing is usually done at low speed, with accurate repeatability being essential. Many dispensing systems are required to operate non-stop and may need to dispense the fluid several times a minute without human interface.

Tags: March 2010 Issue , Rotary Pumps