Matching Flow Diagrams to Replace an Air Directional Control Valve
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Choosing an Air Directional Control Valve
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Digital Potentiometers
More precise than analog potentiometers, these have a three-digit display that is easy to read. Also known as variable output switches or rheostats, they vary electrical flow to control speed, volume, and light intensity.
Two-Speed Two-Action Air Directional Control Valves
Often used to extend and then retract a cylinder at different speeds, these valves create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Also known as 4-way and 5/2 valves.
Valves with spring return actuation return to their original position as soon as you release the actuator.
Valves with hand return actuation stay actuated and return to their original position only when you move the actuator again.
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.
O'all | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | Lg. | Wd. | Ht. | For Panel Cutout Dia. | Mounting Fasteners Included | Each | ||
Threaded Female Inlet × Threaded Female Outlet | |||||||||||||||
Spring Return Actuation | |||||||||||||||
| A | 5 | 1/4 NPT | 1/4 NPT | Threaded | 45.5 | 1.3 | 0-145 | Not Rated | 4 3/4" | 2 1/16" | 4 3/4" | 1" | No | 0000000 | 0000000 |
Hand Return Actuation | |||||||||||||||
| A | 5 | 1/4 NPT | 1/4 NPT | Threaded | 45.5 | 1.3 | 0-145 | Not Rated | 4 3/4" | 2 1/16" | 4 3/4" | 1" | No | 0000000 | 000000 |
Two-Speed Two-Action Air Directional Control Valves with Exhausting Shut-Off
In the off position, these valves exhaust all air pressure, allowing the equipment to return to the neutral position. Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Also known as 4-way and 5/3 exhaust center valves.
Valves with hand return actuation stay actuated and go back to their original position only when you move the actuator again.
Valves with spring return actuation go back to their original 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 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | Lg. | Wd. | Ht. | For Panel Cutout Dia. | Mounting Fasteners Included | Each | ||
Threaded Female Inlet × Threaded Female Outlet | |||||||||||||||
Hand Return Actuation | |||||||||||||||
| B | 5 | 1/4 NPT | 1/4 NPT | Threaded | 45.5 | 1.3 | 0-145 | Not Rated | 4 3/4" | 2 1/16" | 4 3/4" | 1" | No | 0000000 | 0000000 |
Spring Return Actuation | |||||||||||||||
| B | 5 | 1/4 NPT | 1/4 NPT | Threaded | 35 | 1 | 0-145 | Not Rated | 4 3/4" | 2 1/16" | 4 3/4" | 1" | No | 0000000 | 000000 |
Two-Speed Two-Action Air Directional Control Valves with Full Shut-Off
These valves close all ports in the off position to stop equipment in a locked position with air pressure holding it in place. Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Also known as 4-way and 5/3 closed center valves.
Valves with spring return actuation go back to their original position as soon as you release the actuator.
Valves with hand return actuation stay actuated and go back to their original position only when you move the actuator again.
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.
O'all | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | Lg. | Wd. | Ht. | For Panel Cutout Dia. | Mounting Fasteners Included | Each | ||
Threaded Female Inlet × Threaded Female Outlet | |||||||||||||||
Spring Return Actuation | |||||||||||||||
| A | 5 | 1/4 NPT | 1/4 NPT | Threaded | 45.5 | 1.3 | 0-145 | Not Rated | 4 3/4" | 2 1/16" | 4 3/4" | 1" | No | 0000000 | 0000000 |
Hand Return Actuation | |||||||||||||||
| A | 5 | 1/4 NPT | 1/4 NPT | Threaded | 45.5 | 1.3 | 0-145 | Not Rated | 4 3/4" | 2 1/16" | 4 3/4" | 1" | No | 0000000 | 000000 |
Simultaneous Two-Action Air Directional Control Valves
Also known as 4-way and 5/3 pressure center valves, these valves create two actions at the same time, such as extending two single-acting cylinders at once. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion.
Valves with spring return actuation go back to their original position as soon as you release the actuator.
Valves with hand return actuation stay actuated and return to their original position only when you move the actuator again.
Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.
For technical drawings and 3-D models, click on a part number.
Overall | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | Lg. | Wd. | Ht. | For Panel Cutout Dia. | Mounting Fasteners Included | Each | |
Threaded Female Inlet × Threaded Female Outlet | ||||||||||||||
Spring Return Actuation | ||||||||||||||
| 5 | 1/4 NPT | 1/4 NPT | Threaded | 45.5 | 1.3 | 0-145 | Not Rated | 4 3/4" | 2 1/16" | 4 3/4" | 1" | No | 0000000 | 0000000 |
Hand Return Actuation | ||||||||||||||
| 5 | 1/4 NPT | 1/4 NPT | Threaded | 45.5 | 1.3 | 0-145 | Not Rated | 4 3/4" | 2 1/16" | 4 3/4" | 1" | No | 0000000 | 000000 |