Flow control valves, sometimes termed infinite position valves, vary the rate at which a fluid passes through a pipe and are used to regulate the flow of material in process control systems.

Pressure control products are designed to control the amount of force produced by a fluid system. Pressure controls are most commonly known as pressure regulators and, like flow controls, are available in both manual and electronic variations. Pressure regulators are not designed to control flow rates.

The purpose of a temperature control system is to maintain a device at a constant temperature.

Fluid level control is a mechanism, device, or system which monitors, compares, and regulates the level of liquids or gases within a process to a set value.