The 500A Series 1/2-inch pipe air pilot valve employs the classic Humphrey diaphragm lift valve principle. Its unbalanced air spring return design ensures reliable shifting and airtight sealing, whether actuated or non-actuated. The compact design allows for close installation to the application site and enables rapid cycling/quick exhaust. The robust 2-way or 3-way valve features a standard brass body construction (for alternative media) and is normally closed.
Media: Air, inert gases, mild liquids
Valve Function: Single pilot, normally closed
Pipe Type: Direct inline piping
Port Size: 1/2 NPT (Pilot port: 1/8 NPSF)
Number of Ports: 3 ports
Number of Positions: 2 positions
Dimensions (inches) H x W x D: 3.12 x 2.94 x 3.06
Included Options: Pilot booster
Operation Type: Air-piloted
Flow Rate - SCFM @ 100 psig: 160
Flow Rate - LPM @ 6.9 bar: 4530
ESEOD (Orifice) - inches (mm): 0.385 (9.78)
Flow Coefficient (Cv): 2.67
Lubrication: Not required
Pressure Range (psi): 10-125
Recommended Pilot Pressures (psi) for Valve Operation at:
<= 30 psi: 60 psi
60 psi: 90 psi
90 psi: 120 psi
Operating Speed (cycles/minute): 600
Ambient Temperature Range (°F): 0 ~ 225
Wetted Materials: Brass, SST (stainless steel), Buna N rubber
Weight (ounces): 47.0