For dispensing application in which you need to dose a single volume of liquid you need a pump that repeat each time the same volume and Bellows pump is the best solution. Another possibility is a peristaltic pump that is available also with the FDA tube.
For metering application, you need a pump with a smooth and constant flow and the magnetic drive gear pumps of Micropump DC are perfect for this application. With their DC brushless motor, you can easily adjust the flow through a 0-5 VDC signal.
The most precise micro dosing solution are the micro-annular gear pumps that are available to manage the majority of chemicals through a wide range of materials available. The pump is couple with DC or AC powerful motors so can pump very high viscosity liquids. We can customize the pump based on project specifications.