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STC Pilot Operated Pneumatic Directional Control Valve Dimensions

Part No. Valve Picture Port Size (NPT) Port No / Position / Description Cv / Flow Rate Valve Symbol
4A120-1/8 Air Pilot Valve 1/8" 5 Port 4 Way 2 Position
Single Pilot
Air Valve		 0.67
25 SCFM @ 100PSI
P = Supply Port
A, B = Outlet Port
EA, EB, R, S = Exhaust Port
4A220-1/4 1/4" 0.78
53 SCFM @ 100PSI
4A320-3/8 3/8" 1.68
80 SCFM @ 100PSI
4A420-1/2 1/2" 2.79
160 SCFM @ 100PSI





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