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

These pumps meter a consistent amount of liquid within ±2% of the maximum flow.

Rated for liquids with a viscosity up to 5,000 centipoise, these pumps can be used with thick chemicals such as electropolishing solutions.

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.