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


Also known as 4-way and 4/2 valves, these valves create two actions, such as extending and then retracting a double-acting cylinder. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Valves without an exhaust connection exhaust air to the atmosphere.
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.
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 | Lg. | Wd. | Ht. | Dia. | Dia. | Mounting Fasteners Included | Each | ||
Threaded Female Inlet × Threaded Female Outlet | ||||||||||||||||
Hand Return Actuation | ||||||||||||||||
A | 4 | 1/8 NPT | 1/8 NPT | __ | 7.9 | 0.14 | 0-150 | Not Rated | __ | __ | 1 5/8" | 2" | __ | No | 000000 | 0000000 |
B | 4 | 1/4 NPT | 1/4 NPT | Threaded | 14.13 | 0.4 | 0-140 | Not Rated | 5 1/4" | 2 1/2" | 3 1/2" | __ | 1 3/8" | No | 0000000 | 00000 |
B | 4 | 3/8 NPT | 3/8 NPT | Threaded | 38.85 | 1.1 | 0-140 | Not Rated | 5 7/8" | 2 7/8" | 4 1/8" | __ | 1 5/8" | No | 0000000 | 000000 |
B | 4 | 1/2 NPT | 1/2 NPT | Threaded | 109.48 | 3.1 | 0-140 | Not Rated | 6 3/8" | 4" | 4 7/8" | __ | 2" | No | 0000000 | 000000 |
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. Also known as 4-way and 4/3 closed-center valves, they create two actions, such as extracting and then retracting a double-acting cylinder. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Return actuation is by hand, so valves 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. | Mounting Fasteners Included | Each | |
Threaded Female Inlet × Threaded Female Outlet | |||||||||||||
4 | 1/4 NPT | 1/4 NPT | Threaded | 125 | 3.4 | 0-145 | Not Rated | 5 5/8" | 4" | 4 3/4" | No | 00000000 | 0000000 |
4 | 3/8 NPT | 3/8 NPT | Threaded | 70 | 3 | 0-150 | Not Rated | 6 7/8" | 4 3/4" | 3 3/4" | No | 00000000 | 000000 |
4 | 3/8 NPT | 3/8 NPT | Threaded | 70 | 3 | 0-250 | Not Rated | 6 7/8" | 4 3/4" | 3 3/4" | No | 000000000 | 000000 |
4 | 1/2 NPT | 1/2 NPT | Threaded | 145 | 6.2 | 0-150 | Not Rated | 9" | 5 5/8" | 4 1/2" | No | 00000000 | 000000 |
4 | 1/2 NPT | 1/2 NPT | Threaded | 145 | 6.2 | 0-250 | Not Rated | 9" | 5 5/8" | 4 1/2" | No | 000000000 | 000000 |
Two-Action Air Directional Control Valves with Exhausting Shut-Off

In the off position, these valves exhaust all air pressure, allowing equipment to return to the neutral position. Also known as 4-way and 4/3 exhaust-center valves, they create two actions, such as extracting and then retracting a double-acting cylinder. They direct airflow from the inlet to your equipment and exhaust return airflow to create motion. Return actuation is by hand, so valves 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. | Mounting Fasteners Included | Each | |
Threaded Female Inlet × Threaded Female Outlet | |||||||||||||
4 | 1/4 NPT | 1/4 NPT | Threaded | 125 | 3.4 | 0-145 | Not Rated | 5 5/8" | 4" | 4 3/4" | No | 00000000 | 0000000 |
4 | 3/8 NPT | 3/8 NPT | Threaded | 70 | 3 | 0-150 | Not Rated | 6 7/8" | 4 3/4" | 3 3/4" | No | 00000000 | 000000 |
4 | 1/2 NPT | 1/2 NPT | Threaded | 145 | 6.2 | 0-150 | Not Rated | 9" | 5 5/8" | 4 1/2" | No | 00000000 | 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 |
A | 5 | 1/4 NPT | 1/4 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
A | 5 | 3/8 NPT | 3/8 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
Hand Return Actuation | |||||||||||||||
A | 5 | 1/8 NPT | 1/8 NPT | Threaded | 17.5 | 0.5 | 0-145 | Not Rated | 3 3/4" | 1 5/8" | 3 3/4" | 3/4" | No | 0000000 | 000000 |
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 |
A | 5 | 1/4 NPT | 1/4 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
A | 5 | 3/8 NPT | 3/8 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
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.
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 | 1/8 NPT | 1/8 NPT | Threaded | 17.5 | 0.5 | 0-145 | Not Rated | 3 3/4" | 1 5/8" | 3 3/4" | 3/4" | No | 0000000 | 0000000 |
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 |
A | 5 | 3/8 NPT | 3/8 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
Hand Return Actuation | |||||||||||||||
A | 5 | 1/8 NPT | 1/8 NPT | Threaded | 17.5 | 0.5 | 0-145 | Not Rated | 3 3/4" | 1 5/8" | 3 3/4" | 3/4" | No | 0000000 | 000000 |
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 |
A | 5 | 3/8 NPT | 3/8 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
C | 5 | 1/8 NPT | 1/8 NPT | Threaded | 14 | 0.24 | 25-125 | Not Rated | 1 1/4" | 3/4" | 3 1/2" | 1/2" | No | 00000000 | 000000 |
T | 5 | 1/8 NPT | 1/8 NPT | Threaded | 14 | 0.24 | 25-125 | Not Rated | 1 5/8" | 1 5/8" | 4 3/8" | 1 1/4" | No | 00000000 | 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 | 1/8 NPT | 1/8 NPT | Threaded | 17.5 | 0.5 | 0-145 | Not Rated | 3 3/4" | 1 5/8" | 3 3/4" | 3/4" | No | 0000000 | 0000000 |
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 | 000000 |
B | 5 | 1/4 NPT | 1/4 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
B | 5 | 3/8 NPT | 3/8 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
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 |
B | 5 | 1/4 NPT | 1/4 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
B | 5 | 3/8 NPT | 3/8 NPT | Threaded | 65.34 | 1.7 | 14-145 | 28 | 1" | 2" | 3 7/8" | __ | No | 0000000 | 000000 |
Multiple-Position Single-Action Air Directional Control Valves

Control six different outputs from a single source of airflow. These valves have one inlet port and six outlet ports. Push in and rotate the dial to move between outlet ports and send airflow to a different output. Also known as 3-way 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. Return actuation is by hand, so the chosen output remains actuated until you move the dial to another position. Air pressure exhausts to the atmosphere once a new position is selected.
Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.
Overall | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Flow Ports | Inlet Size | Outlet Size | Max. Flow Rate, scfm @ 100 psi | Flow Coefficient (Cv) | Pressure Range, psi | Lg. | Wd. | Ht. | For Panel Cutout Dia. | Mounting Fasteners Included | Each | |
Threaded Female Inlet × Threaded Female Outlet | ||||||||||||
7 | 10-32 UNF | 10-32 UNF | 7.5 | 0.09 | 0-125 | 1 1/2" | 1 1/2" | 2 3/4" | 5/8" | Yes | 0000000 | 0000000 |
Safety-Lockout Single-Action Air Directional Control Valves

To prevent accidental start-up, these valves can be locked in their off position with a padlock. 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 hand, so they stay actuated and return to their starting position only when you move the actuator again. In the off position, they exhaust air pressure from the system, allowing equipment to reset so the action can be repeated. They help meet OSHA 29 CFR 1910.147 procedures for the control of energy sources that could injure workers.
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 | Specifications Met | Lg. | Wd. | Ht. | Mounting Fasteners Included | Padlock Included | For Max. Padlock Shackle Dia. | Each | |
Threaded Female Inlet × Threaded Female Outlet | ||||||||||||||||
3 | 1/8 NPT | 1/8 NPT | Threaded | 5 | 0.65 | 15-145 | Not Rated | OSHA Compliant 29 CFR 1910.147 | 1 5/8" | 1 3/4" | 2 5/8" | No | No | 25/64" | 00000000 | 000000 |
3 | 1/4 NPT | 1/4 NPT | Threaded | 113 | 2 | 15-145 | Not Rated | OSHA Compliant 29 CFR 1910.147 | 2 3/4" | 2 1/2" | 4 1/4" | No | No | 25/64" | 00000000 | 00000 |
3 | 3/8 NPT | 3/8 NPT | Threaded | 116 | 3 | 15-145 | Not Rated | OSHA Compliant 29 CFR 1910.147 | 2 3/4" | 2 1/2" | 4 1/4" | No | No | 25/64" | 00000000 | 00000 |
3 | 1/2 NPT | 1/2 NPT | Threaded | 215 | 3.8 | 15-145 | Not Rated | OSHA Compliant 29 CFR 1910.147 | 2 3/4" | 2 1/2" | 4 1/4" | No | No | 25/64" | 00000000 | 00000 |
3 | 3/4 NPT | 3/4 NPT | Threaded | 361 | 6.4 | 15-145 | Not Rated | OSHA Compliant 29 CFR 1910.147 | 3 5/8" | 3 1/4" | 5 3/8" | No | No | 25/64" | 00000000 | 00000 |
3 | 1 NPT | 1 NPT | Threaded | 481 | 8.6 | 15-145 | Not Rated | OSHA Compliant 29 CFR 1910.147 | 3 5/8" | 3 1/4" | 5 3/8" | No | No | 25/64" | 00000000 | 00000 |
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. Valves without an exhaust connection exhaust air to the atmosphere.
Normally closed valves block airflow until actuated. Valves that are both normally closed and normally open can be installed to block airflow, or allow air to flow until actuated.
Valves with hand return actuation stay actuated and go back to their starting 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.


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. | Dia. | Wd. | Lg. | Mounting Fasteners Included | Each | ||
Normally Closed Flow Positions | |||||||||||||||||||
Hand Return Actuation | |||||||||||||||||||
A | 3 | 1/8 NPT | 1/8 NPT | __ | 7.9 | 0.14 | 0-150 | Not Rated | Black | __ | __ | 1 5/8" | 2" | __ | __ | __ | No | 000000 | 0000000 |
Normally Open/Normally Closed Flow Positions | |||||||||||||||||||
Hand Return Actuation | |||||||||||||||||||
X | 3 | 1/8 NPT | 1/8 NPT | Threaded | 6 | 0.11 | 0-120 | 23 | Black | 1 7/8" | 1 5/8" | 3" | __ | 1 1/4" | 3/4" | 1 3/4" | Yes | 0000000 | 000000 |

Overall | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Flow Ports | For Inlet Tube OD | For Outlet Tube OD | Flow Coefficient (Cv) | Pressure Range, psi | Vacuum Rating | Lg. | Wd. | Ht. | For Panel Cutout Dia. | Mounting Fasteners Included | Max. Flow Rate, scfm @ 100 psi | Each | ||
Normally Closed Flow Positions | ||||||||||||||
Hand Return Actuation | ||||||||||||||
Y | 3 | 4mm | 4mm | 0.18 | 0-145 | Not Rated | 47.6mm | 19mm | 41.3mm | 3/4" | Yes | 5.75 | 0000000 | 000000 |
Y | 3 | 6mm | 6mm | 0.39 | 0-145 | Not Rated | 47.6mm | 19mm | 41.3mm | 3/4" | Yes | 12.77 | 0000000 | 00000 |
Y | 3 | 8mm | 8mm | 0.53 | 0-145 | Not Rated | 54mm | 19mm | 41.3mm | 3/4" | Yes | 16.92 | 0000000 | 00000 |
Y | 3 | 10mm | 10mm | 0.89 | 0-145 | Not Rated | 60.3mm | 22.2mm | 47.6mm | 3/4" | Yes | 28.42 | 0000000 | 00000 |
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 | 1/8 NPT | 1/8 NPT | Threaded | 17.5 | 0.5 | 0-145 | Not Rated | 3 3/4" | 1 5/8" | 3 3/4" | 3/4" | No | 0000000 | 000000 |
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 |
Quiet Safety-Lockout Air On/Off Valves

The muffler on these valves reduces exhaust noise. A padlock (not included) locks the handle in the shut-off position to disconnect air tools safely. They comply with OSHA 29 CFR 1910.147 to maintain safety and control in a compressed air system.
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 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Inlet Pipe Size | Outlet Pipe Size | Exhaust Pipe Size | Flow Coefficient (Cv) | Max. Pressure, psi | Temp. Range, °F | Lg. | Wd. | Ht. | For Max. Padlock Shackle Dia. | Specifications Met | Each | |
NPT Female Inlet, Outlet, and Exhaust | ||||||||||||
Aluminum Body | ||||||||||||
1/4 | 1/4 | 3/8 | 3.2 | 150 | 40° to 175° | 3 5/8" | 1 3/16" | 8" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 0000000 |
3/8 | 3/8 | 3/8 | 3.2 | 150 | 40° to 175° | 3 5/8" | 1 3/16" | 8" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
1/2 | 1/2 | 3/4 | 5.9 | 150 | 40° to 175° | 4 7/16" | 2" | 11 1/2" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
3/4 | 3/4 | 3/4 | 5.9 | 150 | 40° to 175° | 4 7/16" | 2" | 11 1/2" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
1 | 1 | 1 1/4 | 17.4 | 150 | 40° to 175° | 5 1/2" | 2.3" | 14 3/4" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
1 1/4 | 1 1/4 | 1 1/4 | 17.4 | 150 | 40° to 175° | 5 1/2" | 2.3" | 14 3/4" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
Safety-Lockout Air On/Off Valves

A padlock (not included) locks the handle of these valves in the shut-off position. When valves are closed, the exhaust port vents air pressure so you can disconnect air tools safely. They meet OSHA lockout requirements to maintain safety and control in a compressed air system.
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.
Valves that comply with OSHA 29 CFR 1910.147 meet standards for the control of energy sources that could injure workers.
For technical drawings and 3-D models, click on a part number.
Flow Rate @ 100 psi | Overall | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Inlet Pipe Size | Outlet Pipe Size | Exhaust Pipe Size | Flow Coefficient (Cv) | Min. | Max. | Max. Pressure, psi | Temp. Range, °F | Lg. | Wd. | Ht. | For Max. Padlock Shackle Dia. | Specifications Met | Each | |
Aluminum Body | ||||||||||||||
1/4 | 1/4 | 3/8 | 1.8 | Not Rated | Not Rated | 145 | 40° to 175° | 1" | 1" | 6 1/2" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 0000000 |
3/8 | 3/8 | 3/8 | 2.6 | Not Rated | Not Rated | 145 | 40° to 175° | 1" | 1" | 6 1/2" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
1/2 | 1/2 | 3/4 | 4 | 0 scfm | 91 scfm | 300 | 40° to 175° | 4 1/4" | 2" | 9" | 1/4" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 000000 |
1/2 | 1/2 | 3/4 | 7.1 | Not Rated | Not Rated | 300 | 40° to 175° | 4 7/16" | 2" | 8 7/8" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
3/4 | 3/4 | 3/4 | 4 | 0 scfm | 93 scfm | 300 | 40° to 175° | 4 1/4" | 2" | 9" | 1/4" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 000000 |
3/4 | 3/4 | 3/4 | 8.2 | Not Rated | Not Rated | 300 | 40° to 175° | 4 7/16" | 2" | 8 7/8" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
1 | 1 | 1 1/4 | 9.4 | 0 scfm | 216 scfm | 300 | 40° to 175° | 4 1/4" | 2 1/4" | 9" | 1/4" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 000000 |
1 | 1 | 1 1/4 | 16.5 | Not Rated | Not Rated | 300 | 40° to 175° | 5 1/2" | 2.3" | 10 13/16" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |
1 1/4 | 1 1/4 | 1 1/4 | 19.2 | Not Rated | Not Rated | 300 | 40° to 175° | 5 1/2" | 2.3" | 10 13/16" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 00000000 | 000000 |