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Safety-Lockout Air On/Off Valves
Brass Body
Bronze Body
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.
For technical drawings and 3-D models, click on a part number.
NPT Female Inlet, Outlet, and Exhaust
Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inlet Pipe Size | Outlet Pipe Size | Exhaust Pipe Size | Flow Coefficient (Cv) | Min. Flow Rate | Max. Flow Rate | Max. Pressure, psi | Temp. Range, °F | Lg. | Wd. | Ht. | For Max. Padlock Shackle Dia. | 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" | 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" | 0000000 | 00000 |
| 2 | 2 | 1/4 | 190 | Not Rated | Not Rated | 200 | 32° to 210° | 8 9/16" | 3 3/8" | 5 3/4" | 9/32" | 0000000 | 000000 |
Bronze Body | |||||||||||||
| 1/4 | 1/4 | 1/4 | Not Rated | Not Rated | Not Rated | 200 | 50° to 200° | 4 7/8" | 1 1/16" | 3" | 1/4" | 0000000 | 00000 |
| 3/8 | 3/8 | 1/4 | Not Rated | Not Rated | Not Rated | 200 | 50° to 200° | 4 7/8" | 1 1/16" | 3" | 1/4" | 0000000 | 00000 |
| 1/2 | 1/2 | 1/4 | 15 | Not Rated | Not Rated | 200 | 50° to 200° | 4 15/16" | 1 3/16" | 3 1/16" | 1/4" | 0000000 | 00000 |
| 3/4 | 3/4 | 1/4 | 51 | Not Rated | Not Rated | 200 | 50° to 200° | 6 7/16" | 1 13/16" | 3 11/16" | 1/4" | 0000000 | 00000 |
| 1 | 1 | 1/4 | 68 | Not Rated | Not Rated | 200 | 50° to 200° | 7 5/16" | 2 1/4" | 4 3/8" | 1/4" | 0000000 | 000000 |
NPT Female Inlet and Outlet—UNF Female Exhaust
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. | 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" | 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" | 0000000 | 00000 |
| 1/2 | 1/2 | 10-32 | 19 | 200 | -40° to 350° | 4 15/16" | 1 5/16" | 2 13/16" | 9/32" | 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" | 0000000 | 00000 |
| 1 | 1 | 10-32 | 50.1 | 200 | -40° to 350° | 6 3/16" | 1 15/16" | 3 11/16" | 9/32" | 0000000 | 00000 |