A metering pump, also known as a chemical dosing pump, is a type of dosing pump that is used to dispense a precise and accurate amount of liquid or gas at a specific flow rate. Metering pumps are commonly used in industrial, chemical, and water treatment applications where precise control of fluid flow is required. They are used to add chemicals to water treatment systems, to dispense precise amounts of additives in manufacturing processes, and to dispense medication in medical settings.
Metering pumps operate on the principle of a positive displacement mechanism, typically using a piston, diaphragm, or rotary gear design to move the fluid. The flow rate of the pump can be controlled by adjusting the stroke length or stroke frequency of the pump.
There are different types of dosing pumps such as:
Each of these types of metering pumps has its own advantages and disadvantages, and the best type for a specific application will depend on the fluid being pumped, the flow rate and volume required, and the operating conditions.
When selecting a metering pump, it is important to consider factors such as the type of fluid being pumped, the viscosity and chemical compatibility of the fluid, the desired flow rate and volume, the operating pressure and temperature, and any safety and regulatory requirements that may apply.