250AA Series 1/4 pipe Air Pilot Valve features the classic Humphrey diaphragm-poppet principle, while incorporating an internal compensating orifice to achieve faster response times, or a "momentary signal, maintained position" function. The unbalanced, air-spring return design assures reliable shifting and bubble-tight sealing actuated, or unactuated. Compact design permits close proximity mounting to work. These rugged normally closed air valves are available in 2 or 3- way function.
| Number of Ports | 3 ports | ||||||||
| Number of Positions | 2 positions | ||||||||
| Valve Function | Single Pilot, Normally Closed | ||||||||
| Piping Type | Inline, Direct Piping | ||||||||
| Size (in) HxWxD | 1.97 x 1.63 DIA | ||||||||
| Options Included | Internal compensating orifice | ||||||||
| Media | Air | ||||||||
| Type of Operation | Air Piloted, w/Bleed | ||||||||
| Flow Capacity (Cv) | 0.83 | ||||||||
| Port Size | 1/4 NPSF (Pilot Port: 1/8 NPSF) | ||||||||
| Lubrication | Not required | ||||||||
| Media Filtration | Not required | ||||||||
| Pressure Range (psi) | 15-125 | ||||||||
| At Valved Pressure of: Recommended Pilot Pressure (psi): |
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| Operating Speed (cycles/min) | 600 | ||||||||
| Ambient Temperature Range (⁰F) | -20~225 | ||||||||
| Wetted Materials | Zinc diecast, Brass, SST, Buna N | ||||||||
| Weight (oz) | 8.0 |
ID #: 3802
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