Fluid power components are a combination of pneumatic and hydraulic components, devices, instruments and systems designed to facilitate or force the flow of fluids (in this case, both liquids and gases). As the names imply, hydraulic equipment relates to liquid fluids (such as water or oil), while pneumatic power equipment refers to those items that use, or are driven by air pressure. For both pneumatics and hydraulics, the following equipment types are covered: valves, filters, cylinders, drives, motors, pumps, reservoirs, tubing, etc.

Hydraulic equipment and components are operated (or powered) by the resistance offered or the pressure transmitted when a quantity of liquid (such as water or oil) is forced through a comparatively small orifice or through a tube. Devices within this family derive their power from pressurized flow, or are designed to maintain, measure, restrict or filter the pressurized flow. The hydraulic family of the fluid power equipment and components category includes: hydraulic accumulators, hydraulic cylinders, hydraulic filters, filter - regulator - lubricator (FRL) assemblies, hydraulic flow controls, hydraulic motors, hydraulic power units, hydraulic pumps, hydraulic reservoirs, pressure controls and pressure regulators, rodless cylinders, and vacuum pressure regulators.

Pneumatic equipment and components, as the name implies, are moved or worked by air pressure. The instruments in this family derive their fluid power from pressurized airflow, or are designed to maintain, measure, restrict or filter the pressurized airflow. The pneumatic family of fluid power equipment includes: air compressors, air cylinders, air motors, air pressure regulators, compressed air dryers, compressed air filters, electro-pneumatic transducers, filter - regulator - lubricator (FRL) assemblies, pneumatic flow controls, pneumatic grippers, linear thrusters, manifolds, pneumatic rotary actuators, pressure control valves, pressure regulators, proportional valves, rodless cylinders, solenoid valves, tubing, and vacuum pressure regulators.