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STC Pilot Operated Pneumatic Directional Control Valve Dimensions (UNIT=MM)

Part No.

Valve Picture

Port Size
(NPT)

Description

Port No/ Position

Cv
Flow Rate

4A120-1/8

Air Pilot Valve

P=Supply Port
A, B=Outlet Port
EA, EB, R, S=Exhaust Port

1/8 NPT

4 Way 2 position 
Single Pilot  
Air Valves

5/2
Four Way Valve

Cv =  0.67
25 SCFM @100 PSI

4A220-1/4

1/4 NPT

Cv = 0.78
53 SCFM @100 PSI

4A320-3/8

3/8 NPT

Cv = 1.68
80 SCFM @100 PSI

4A420-1/2 1/2 NPT

Cv = 2.79
160 SCFM @100 PSI

 
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