What type of pump is used to feed chemical solutions?

A positive displacement pump is specifically designed to move fluids by trapping a fixed amount of liquid and forcing it into the discharge pipe. This characteristic makes it particularly effective for feeding chemical solutions, as it can accurately deliver precise volumes regardless of the fluid's viscosity or pressure conditions downstream.

In applications involving chemicals, measuring and delivering exact amounts is crucial for process control, safety, and minimizing waste. Positive displacement pumps excel in these scenarios because they can maintain a steady flow rate over a range of pressures, making them ideal for feeding solutions in chemical processes.

While centrifugal and diaphragm pumps also have their specific uses in various applications, they do not provide the same level of volumetric accuracy and consistency when handling various chemical solutions. Centrifugal pumps rely on rotational energy and are more suited for transferring large volumes of liquids at low viscosity. Diaphragm pumps, while also capable of handling certain chemicals and providing a degree of metering, are often used in applications where the fluid must not come into contact with moving parts, which may not be necessary in all chemical feeding situations. Pneumatic pumps, on the other hand, primarily use compressed air to move fluids and are often more versatile in handling different types of materials but do not offer the same precision for chemical solutions