Dosing and metering pumps are small positive displacement pumps and are designed for metering a wide range of liquids, most especially chemicals. Basically, they inject fluid into a flow of steam, water, or gas. They provide an extremely precise flow rate for a wide range of applications from food processing to wastewater treatment, power generation, chemical processing, petrochemical, and oil and gas processes.
There are several types of dosing and metering pumps available for different types of applications. Industries can choose from the following, depending on their system requirements:
- Diaphragm type constant injection
- Diaphragm type pulse injection
- Lobe pumps
- Peristaltic pumps