Matching Flow Diagrams to Replace an Air Directional Control Valve
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Choosing an Air Directional Control Valve
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Single-Action Air Directional Control Valves

Manually control these valves by pushing or turning the actuator. Also known as 3-way or 3/2 valves, they create one action, such as extending a cylinder. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. In the off position, they exhaust air pressure from the system, allowing equipment to reset so the action can be repeated.
Normally closed valves block airflow until actuated. Valves with spring return actuation go back to their starting position as soon as you release the actuator.
Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve. When selecting between valves with the same port size, choose the valve with the higher flow coefficient to ensure it provides enough airflow to operate your system.
For technical drawings and 3-D models, click on a part number.

Overall | For Panel Cutout | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Flow Ports | Inlet Size | Outlet Size | Exhaust Connection Type | Max. Flow Rate, scfm @ 100 psi | Flow Coefficient (Cv) | Pressure Range, psi | Vacuum Rating, in. of Hg | Actuator Color | Lg. | Wd. | Ht. | Dia. | Mounting Fasteners Included | Each | ||
Normally Closed Flow Positions | ||||||||||||||||
Spring Return Actuation | ||||||||||||||||
P | 3 | 1/8 NPT | 1/8 NPT | Threaded | 6 | 0.106 | 0-100 | Not Rated | Black | 2 1/4" | 2 1/4" | 2 1/2" | 2 1/4" | No | 0000000 | 000000 |
P | 3 | 1/8 NPT | 1/8 NPT | Threaded | 6 | 0.106 | 0-100 | Not Rated | Green | 2 1/4" | 2 1/4" | 2 1/2" | 2 1/4" | No | 0000000 | 00000 |
P | 3 | 1/8 NPT | 1/8 NPT | Threaded | 6 | 0.106 | 0-100 | Not Rated | Red | 2 1/4" | 2 1/4" | 2 1/2" | 2 1/4" | No | 0000000 | 00000 |