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Mfr. Part #: 250A-3-11-20-BRB
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Humphrey 250A-3-11-20-BRB air-piloted 3-way pneumatic valve with high flow and reliable control for industrial automation and air systems.
Key Features:
- Humphrey 250A-3-11-20-BRB air-piloted pneumatic valve with diaphragm poppet design.
- 3-way, 2-position valve with normally open function and air pilot actuation.
- Inline direct-piping configuration with 1/4″ NPSF ports and a 1/8″ pilot port.
- Air return spring assist for reliable shifting and bubble-tight sealing.
- Unbalanced poppet valve principle for fast cycling and quick exhaust.
- Rugged construction with brass body option for alternate media compatibility.
- High flow capacity (around Cv 0.83) suitable for industrial air systems.
- Operates over a wide temperature range and pressure range up to ~125 psi.
Common Applications:
- Directional control of pneumatic air flow in automated machinery.
- Actuation of pneumatic cylinders and actuators in manufacturing systems.
- Pneumatic control in packaging, material handling, and assembly equipment.
- Air distribution and control in general industrial automation systems.
- Integration into pneumatic control panels and test fixtures requiring piloted valves.
| Manufacturer | Humphrey |
|---|---|
| Model | 250A-3-11-20-BRB |
| Valve Type | Air-piloted pneumatic valve |
| Valve Function | 3-way, 2-position |
| Actuation | Air pilot with spring return |
| Port Size | 1/4 in NPSF (main ports), 1/8 in NPSF (pilot) |
| Operating Media | Compressed air |
| Body Material | Brass |
| Design | Diaphragm poppet, unbalanced |
| Flow Coefficient (Cv) | Approx. 0.83 |
| Operating Pressure | Up to 125 psi |
| Typical Applications | Directional air control, actuator operation, automation machinery, packaging and material handling |




ID #: 212824