Product Details
250B Series 1/4 pipe Roller Ball type mechanical valve features the classic Humphrey diaphragm poppet principle. The unbalanced, air-spring return design assures bubble-tight sealing actuated, and unactuated. Rugged 2 or 3-way valves are available normally closed or normally open. Standard or optional brass body suitable for inline or base mounting.
| Media | Air, Inert Gas |
| Valve Function | Normally closed |
| Piping Type | Inline, Direct piping |
| Port Size | 1/4 NPSF |
| Number of Ports | 3 ports |
| Number of Positions | 2 positions |
| Options Included | Mounting base |
| Approx Size (in) HxWxD | 2.38 x 1.56 DIA |
| Type of Operation | Roller Ball |
| Flow - SCFM @ pressure | 60 |
| Flow - LPM @ pressure | 1699 |
| ESEOD (orifice) - in (mm) | 0.215 (5.45) |
| Flow Coefficient (Cv) | 0.83 |
| Lubrication | Not required |
| Pressure Range (psi) | 0-125 |
At Valved Pressure of:
Force to Actuate (lbs): | |
| Ambient Temperature Range (⁰F) | -20~225 |
| Wetted Materials | Zinc diecast, Brass, Buna N |
| Weight (oz) | 9.0 |
