Which type of pump is best suited for delivering a specific amount of chemical?

The diaphragm pump is particularly suited for delivering a specific amount of chemical due to its ability to accurately control flow rates and handle varying viscosities and chemical compositions. This type of pump operates using a flexible diaphragm that creates a variable volume chamber, allowing it to precisely dispense a fixed volume of liquid with each stroke. This operational characteristic is essential when precise dosing of chemicals is required, such as in wastewater treatment processes for maintaining optimal chemical balances.

Additionally, diaphragm pumps are known for their ability to handle corrosive and abrasive liquids, making them a preferred choice in many chemical processing applications. Their design allows for minimal pulsing and can maintain a steady flow, which is critical when consistent application is necessary for effective chemical treatment.

Other pump types like submersible, centrifugal, and screw pumps may not provide the same level of dosage control or could be better suited for different applications, such as moving large volumes of liquid at lower precision. Thus, when it comes to precise chemical delivery, diaphragm pumps are the optimal choice.