Precision Pumping with Metering Pumps

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Need to transfer precise volumes of liquid in a specified time? Also require a high degree of accuracy? Metering pumps, a type of positive displacement pump, may be your solution.

Cole-Parmer® High-Volume Single-Head Diaphragm Pump

Cole-Parmer® High-Volume Single-Head Diaphragm Pump

From diaphragm pumps to peristaltic pumps to gear pumps to piston pumps, the metering pump transfers media by:

  1. The intake stroke: the inlet side of the pump is opened, the outlet side closed and liquid is pulled in to the pump cavity
  2. The outlet stroke: the inlet side of the pump is closed, the outlet side opened and liquid is forced out

Typically, a metering pump is a good choice when:

  • Flow rates are LPH or less
  • Media is high viscosity or slurry
  • High accuracy dosing or movement of media is necessary
  • High system pressure
  • Pumping needs to be controlled by computer, PLC, or flow proportioning

Syringe pumps are another type of metering pump for high accuracy delivery of ultra low flows.


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