Product Details
590A Series 3/4 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, in standard or optional brass body construction (for alternate media).
| Media | Air, Inert Gas, Mild Liquids |
| Valve Function | Single Pilot, Normally Closed |
| Piping Type | Inline, Direct Piping |
| Port Size | 3/4 NPT (Pilot Port: 1/8 NPSF) |
| Number of Ports | 2 ports |
| Number of Positions | 2 positions |
| Size (in) HxWxD | 2.75 x 4 x 3.53 |
| Type of Operation | Air Piloted |
| Flow - SCFM @ 100 psig | 250 |
| Flow - LPM @ 6.9 bar | 7079 |
| ESEOD (orifice) - in (mm) | 0.490 (12.46) |
| Flow Coefficient (Cv) | 4.33 |
| Lubrication | Not required |
| Pressure Range (psi) | 10-125 |
At Valved Pressure of:
Recommended Pilot Pressure (psi): | | <=30 PSI | 60 PSI | 90 PSI | 120 PSI | | 27 | 54 | 81 | 108 |
|
| Operating Speed (cycles/min) | 600 |
| Ambient Temperature Range (⁰F) | 0~225 |
| Wetted Materials | Aluminum, SST, Buna N |
| Weight (oz) | 25.0 |
