Product Overview
Humphrey Product
Description
250A Series 1/4 pipe Air Pilot Valves feature the classic Humphrey diaphragm poppet principle. The unbalanced, air-spring return design assures reliable shifting and bubble-tight sealing actuated, and unactuated. Compact design permits close proximity mounting to work and fast cycling/quick exhaust. Rugged 2- or 3- way valves are available normally closed or normally open, in standard or optional brass body construction (for alternate media)
Specifications
Media:Air, Inert Gas
Valve Function:Single Pilot, Normally Closed
Piping Type: Inline, Direct Piping
Port Size : 1/4 NPSF (Pilot Port: 1/8 NPSF)
Number of Ports : 3 ports
Number of Positions : 2 positions
Size (in) HxWxD : 1.97 x 1.63 DIA
Type of Operation: Air Piloted
Flow - SCFM @ 100 psig: 60
Flow - LPM @ 6.9 bar : 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: <=30 PSI 60 PSI 90 PSI 120 PSI
Recommended Pilot Pressure (psi): 22 46 71 95
Operating Speed (cycles/min): 600
Ambient Temperature Range (°F): -20~225
Wetted Materials: Zinc diecast, Brass, SST, Buna N
Weight (oz): 8.0
*Please note that image representation may only represent a product series with particular items. The buyers responsibility is to ensure the product SKU matches their specifications before purchase.
