Matching Flow Diagrams to Replace an Air Directional Control Valve
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Choosing an Air Directional Control Valve
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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.
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 |
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.
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 | |
Brass Body | ||||||||||||||
| 1 1/4 | 1 1/4 | 1/4 | 86 | Not Rated | Not Rated | 200 | 32° to 210° | 8" | 2 5/16" | 4 3/4" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 000000 |
| 1 1/2 | 1 1/2 | 1/4 | 140 | Not Rated | Not Rated | 200 | 32° to 210° | 8 3/16" | 2 13/16" | 5 1/4" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 000000 |
| 2 | 2 | 1/4 | 190 | Not Rated | Not Rated | 200 | 32° to 210° | 8 9/16" | 3 3/8" | 5 3/4" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 000000 |
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 | 000000 |
| 3/8 | 3/8 | 3/8 | 2.8 | Not Rated | Not Rated | 300 | 40° to 175° | 5 7/16" | 1 1/4" | 7" | 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 |
Overall | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inlet Pipe Size | Outlet Pipe Size | Exhaust Thread Size | Flow Coefficient (Cv) | Max. Pressure, psi | Temp. Range, °F | Lg. | Wd. | Ht. | For Max. Padlock Shackle Dia. | Specifications Met | Each | |
Brass Body | ||||||||||||
| 1/4 | 1/4 | 10-32 | 6.29 | 200 | -40° to 350° | 4 5/8" | 1 1/8" | 2 5/8" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 000000 |
| 3/8 | 3/8 | 10-32 | 6.99 | 200 | -40° to 350° | 4 5/8" | 1 1/8" | 2 5/8" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 00000 |
| 1/2 | 1/2 | 10-32 | 19 | 200 | -40° to 350° | 4 15/16" | 1 5/16" | 2 13/16" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 00000 |
| 3/4 | 3/4 | 10-32 | 34.4 | 200 | -40° to 350° | 5 13/16" | 1 9/16" | 3 5/16" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 00000 |
| 1 | 1 | 10-32 | 50.1 | 200 | -40° to 350° | 6 3/16" | 1 15/16" | 3 11/16" | 9/32" | OSHA Compliant 29 CFR 1910.147 | 0000000 | 00000 |
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.
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 |