Matching Flow Diagrams to Replace an Air Directional Control Valve
More
Choosing an Air Directional Control Valve
More
About On/Off Valves
More
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 hand return actuation stay actuated and go back to their starting position only when you move the actuator again. 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.
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. | Wd. | Lg. | Mounting Fasteners Included | Each | ||
Normally Closed Flow Positions | ||||||||||||||||||
Hand Return Actuation | ||||||||||||||||||
| Q | 3 | 1/8 NPT | 1/8 NPT | Threaded | 10.7 | 0.34 | 0-145 | 26.5 | Red | 4 1/2" | 7/8" | 1 3/8" | 1 1/4" | __ | __ | No | 00000000 | 0000000 |
| R | 3 | 1/4 NPT | 1/4 NPT | Threaded | 32.5 | 0.98 | 0-145 | 26.5 | Black | 1 1/8" | 1 7/8" | 5 1/4" | 7/8" | __ | __ | No | 0000000 | 000000 |
| R | 3 | 1/4 NPT | 1/4 NPT | Threaded | 53 | 1.6 | 0-150 | 29 | Black | 2 1/4" | 1 3/8" | 6 3/8" | 7/8" | __ | __ | Yes | 0000000 | 000000 |
Spring Return Actuation | ||||||||||||||||||
| M | 3 | 1/8 NPT | 1/8 NPT | Threaded | 6 | 0.11 | 0-120 | 23 | Black | 1 3/4" | 3/4" | 2 3/8" | 1/2" | 3/4" | 1 3/4" | Yes | 0000000 | 00000 |
| N | 3 | 1/8 NPT | 1/8 NPT | Threaded | 6 | 0.11 | 0-120 | 23 | Red | 2 3/8" | 2 3/8" | 3 5/16" | 1 1/4" | 3/4" | 1 3/4" | Yes | 0000000 | 000000 |
| 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 | 00000 |
| 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 |
| R | 3 | 1/4 NPT | 1/4 NPT | Threaded | 32.5 | 0.98 | 0-145 | 26.5 | Black | 1 1/8" | 1 7/8" | 4 7/8" | 7/8" | __ | __ | No | 0000000 | 000000 |
| R | 3 | 1/4 NPT | 1/4 NPT | Threaded | 53 | 1.6 | 0-150 | 29 | Black | 2 1/4" | 1 3/8" | 5 7/8" | 7/8" | __ | __ | Yes | 0000000 | 000000 |
| W | 3 | 1/8 NPT | 1/8 NPT | Threaded | 6 | 0.11 | 0-120 | 23 | Black | 1 7/8" | 1 5/8" | 2 1/2" | 1 1/4" | 3/4" | 1 3/4" | Yes | 0000000 | 000000 |
Remote-Location Two-Hand Single-Action Air Directional Control Valves
The push buttons that operate these valves are separate from the logic unit, allowing you to position them away from machinery. Since both hands are required to simultaneously press the buttons, they protect workers from accidental machinery start-up. Also known as 3-way and 3/2 valves, they create one action, such as extending a cylinder. Valves direct airflow from the inlet to your equipment and exhaust return airflow to create motion. They're normally closed to block airflow until actuated. Return actuation is by spring, so valves return to their starting position as soon as you release the actuator. In the off position, they exhaust air from the system, allowing equipment to reset so the action can be repeated.
Note: Valve is sold as a complete unit, consisting of one logic unit and two signal valves. Port size given is for the logic unit. Signal valve port size is 1/8 NPT female.
Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.
Overall | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Flow Ports | For Inlet Tube OD | For Outlet Tube OD | 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 | |
Push-to-Connect Female Inlet × Push-to-Connect Female Outlet | ||||||||||||||
| 3 | 1/4" | 1/4" | Push to Connect | 3.8 | 0.11 | 36-145 | Not Rated | 2 1/2" | 1 3/4" | 2 3/4" | 1 1/8" | No | 0000000 | 0000000 |
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. 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 threaded exhaust connection type allow you to control the speed of each action by attaching a flow control valve to each exhaust port.
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.
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 | |||||||||||||||
| K | 5 | 1/4 NPT | 1/4 NPT | Threaded | 32.5 | 0.98 | 0-145 | 26.5 | 1 1/8" | 1 7/8" | 5 3/4" | 7/8" | No | 0000000 | 0000000 |
| K | 5 | 1/4 NPT | 1/4 NPT | Threaded | 53 | 1.6 | 0-150 | 29 | 2 1/4" | 1 3/8" | 7" | 7/8" | Yes | 0000000 | 000000 |
| L | 5 | 1/8 NPT | 1/8 NPT | Threaded | 14 | 0.24 | 25-125 | Not Rated | 1 3/8" | 1 3/8" | 3 5/8" | 1/2" | No | 00000000 | 000000 |
| Q | 5 | 1/8 NPT | 1/8 NPT | Threaded | 14 | 0.24 | 25-125 | Not Rated | 1 5/8" | 1 5/8" | 3/4" | 1 1/4" | No | 00000000 | 000000 |
Hand Return Actuation | |||||||||||||||
| K | 5 | 1/4 NPT | 1/4 NPT | Threaded | 32.5 | 0.98 | 0-145 | 26.5 | 1 1/8" | 1 7/8" | 6 1/8" | 7/8" | No | 0000000 | 000000 |
| K | 5 | 1/4 NPT | 1/4 NPT | Threaded | 53 | 1.6 | 0-150 | 29 | 2 1/4" | 1 3/8" | 7 1/4" | 7/8" | Yes | 0000000 | 000000 |
| L | 5 | 1/8 NPT | 1/8 NPT | Threaded | 25 | 0.8 | 0-120 | Not Rated | 7/8" | 1 3/8" | 3 7/8" | 5/8" | No | 00000000 | 00000 |
| M | 5 | 1/8 NPT | 1/8 NPT | Threaded | 19 | 0.34 | 15-150 | Not Rated | 1 1/2" | 1 1/2" | 4 1/2" | 1 1/4" | __ | 00000000 | 000000 |
| S | 5 | 1/4 NPT | 1/4 NPT | Threaded | 56 | 1 | 40-120 | Not Rated | 3" | 1 7/8" | 2" | __ | No | 0000000 | 000000 |
Fast-Acting Threaded On/Off Valves
Push a button or flip a toggle switch to start or stop flow. Often used in testing and sampling, these valves are useful when you need to dispense a small amount of liquid.
Push-button valves automatically open or close when you take your finger off the button. They’re ideal for intermittent use and applications where you want to monitor flow closely to avoid spills. The button is colored to make it easy to tell different valves apart. Normally open valves close when you push their button. Normally closed valves open when you push their button.
Valves with an exhaust port release extra air or liquid when they close. When these valves open, the exhaust port closes.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
with Mushroom
Push Button
- Valve Type: Stem
- For Use With: See table
- Seal Material: Buna-N Rubber
Mushroom Push Button | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Thread Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Port-to-Port Lg. | Features | For Use With | Push-Button Color | Each | |
Normally Open | ||||||||||
NPT Female × NPT Female | ||||||||||
| 1/8 | __ | 0.21 | 150 psi @ 180° F | 35° to 230° | 9/16" | __ | Water, Oil, Air | Black | 0000000 | 000000 |
| 1/8 | __ | 0.47 | 150 psi @ 180° F | 35° to 230° | 9/16" | Exhaust Port | Air | Black | 0000000 | 00000 |
UNF Female × UNF Female | ||||||||||
| __ | 10-32 | 0.18 | 150 psi @ 180° F | 35° to 230° | 5/16" | __ | Water, Oil, Air | Black | 0000000 | 00000 |
Normally Closed | ||||||||||
NPT Female × NPT Female | ||||||||||
| 1/8 | __ | 0.44 | 300 psi @ 180° F | 35° to 230° | 9/16" | __ | Water, Oil, Air | Black | 0000000 | 00000 |
| 1/8 | __ | 0.47 | 300 psi @ 180° F | 35° to 230° | 9/16" | Exhaust Port | Air | Black | 0000000 | 00000 |
UNF Female × UNF Female | ||||||||||
| __ | 10-32 | 0.12 | 300 psi @ 180° F | 35° to 230° | 5/16" | __ | Water, Oil, Air | Black | 0000000 | 00000 |