Automatically control output from a distance using 4‐20 mA or external-pulse signals. These pumps meter a consistent amount of liquid within ±2% of the maximum flow.

Also known as peristaltic pumps and tubing pumps, these maintain a fixed flow rate.

Inject chemicals into your water supply without using electricity—these pumps install directly in your pipeline and activate when water flows into the pump head.

An adjustment dial with a locking lever allows for easy flow control. Also known as diaphragm metering pumps, these can be used with pressures up to four times higher than standard pumps for chemicals.

With a footprint that's only a few inches in any direction, these pumps fit into compact systems to dispense small amounts of acids, cleaning fluids, and other chemicals. They're often used in sterilization, photochemical, and water treatment systems.

For high-volume chemical sampling and draining, these pumps have a powerful motor that enables them to move 2,448 gallons of liquid per day.

An adjustment screw lets you increase or decrease flow rate without the hassle of changing tubing. Often used in boiler feed systems and water treatment, these pumps are compatible with chemicals such as cleaning fluids and acid-washing solutions.