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Valve, Humphrey, Air Piloted 501A-3-12-20, 1/2 Ports, 275 CFM AT 125 PSI 2&3WAY,N/0&C

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Part #:	HUM501A
Mfg Name:	Humphrey
Mfg P/N:	501A

Summary

Valve, Humphrey, Air Piloted 501A-3-12-20, 1/2 Ports, 275 CFM AT 125 PSI 2&3WAY,N/0&C

Used on Blow-Off.

Model 501A is a multi-purpose valve offering high flow rates (to 275 scfm at 125 psig). With all ports on the same vertical plane, the 501A offers straight-line plumbing. It is constructed of lightweight aluminum which has been hardcoated for greater resistance to wear. With the pilot pressure connected to pilot port, four functions are possible.

Normally Closed: supply to NC port. NO port becomes exhaust port. CYL port to work.
Normally Open: supply to NO port. NC port becomes exhaust port. CYL to work.
Directional: supply to CYL port. Pilot air shifts NC open and NO closed.
Di-Media: supply #1 to NO; supply #2 to NC. CYL port is common.

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Valve, Humphrey, Air Piloted 501A-3-12-20, 1/2 Ports, 275 CFM AT 125 PSI 2&3WAY,N/0&C