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DFARS Specialty Metals
Matching Flow Diagrams to Replace an Air Directional Control Valve
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Choosing an Air Directional Control Valve
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Pressure-Driven Threaded Diverting Valves
UNF Female × UNF Female × UNF Female
UNF Female × UNF Male × UNF Female
NPT Female × NPT Male × NPT Female
- Valve Type: Shuttle
- For Use With: Air, Argon, Helium, Krypton, Neon, Oil, Water, Xenon
- Seal Material:
UNF Thread Type: Buna-N Rubber
NPT Thread Type: Nitrile Rubber
Also known as shuttle valves, these automatically switch the inlet source as pressure changes; they always direct flow from the higher-pressure side-port inlet to the top-port outlet. They cannot shut off flow.
For technical drawings and 3-D models, click on a part number.
Thread Size | Pipe Size | Flow Pattern | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Each | |
Brass Body | |||||||
|---|---|---|---|---|---|---|---|
UNF Female × UNF Female × UNF Female | |||||||
| 10-32 | __ | L-Pattern | 250 psi @ 70° F | 35° to 230° | 13/16" | 0000000 | 000000 |
UNF Female × UNF Male × UNF Female | |||||||
| 10-32 | __ | L-Pattern | 250 psi @ 70° F | 35° to 230° | 13/16" | 0000000 | 00000 |
NPT Female × NPT Male × NPT Female | |||||||
| __ | 1/8 | L-Pattern | 300 psi @ 70° F | 35° to 230° | 1 5/16" | 0000000 | 00000 |
| __ | 1/4 | L-Pattern | 300 psi @ 70° F | 35° to 230° | 1 5/8" | 0000000 | 00000 |
Input-Selecting Air Directional Control Valves
Also known as shuttle valves and "or" valves, these valves select between the higher of two inlet pressures to power one outlet port. They're often used in emergency systems where the lower pressure input acts as a backup to the higher pressure input.
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 | Max. Flow Rate, scfm @ 100 psi | Flow Coefficient (Cv) | Pressure Range, psi | Vacuum Rating | Lg. | Wd. | Ht. | Mount Type | Each | |
Push-to-Connect Female Inlet × Push-to-Connect Female Outlet | ||||||||||||
| 3 | 5/32" | 5/32" | 27.12 | 0.48 | 0-125 | Not Rated | 1 5/8" | 5/8" | 1 1/8" | Inline | 0000000 | 000000 |
| 3 | 1/4" | 1/4" | 27.12 | 0.48 | 0-125 | Not Rated | 1 5/8" | 5/8" | 1 1/8" | Inline | 0000000 | 00000 |