Applications that require chemicals to be metered or pumped under high pressure necessitate what type of pump?

In applications that involve metering or pumping chemicals under high pressure, positive displacement pumps are the most suitable choice. These pumps operate by trapping a fixed volume of fluid and then forcing it into the discharge pipe, which allows for precise control over the flow rate and pressure of the fluid.

The design of positive displacement pumps enables them to create high pressure, which is essential for applications that require the transfer of viscous fluids or chemicals that need to be pumped securely and efficiently. This is particularly important in settings where the fluid being moved is under high resistance or requires an accurate amount to be delivered at a specific pressure.

In contrast, other types of pumps, such as centrifugal pumps, do not inherently generate high pressure as their working principle is based on the kinetic energy provided by a rotating impeller. While they can be used in many fluid transport applications, they are not ideal for scenarios where high pressure and precise metering are required. Multi-stage pumps can increase pressure but may not offer the same level of control over the flow rate as positive displacement pumps. Diaphragm pumps, like positive displacement pumps, can also handle high pressure, but their design may limit their use with certain chemical types compared to the broader applicability of positive displacement pumps.

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