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The PRO-SOURCE 4330221612PRO is a manually operated 3-way pneumatic air valve actuated by a flush palm button with spring return. The valve uses a mechanical actuator design, meaning no electrical signal or solenoid is required to shift the valve state. Pressing the palm button shifts the valve to an alternate flow path; releasing it returns the spool to the original position via the integrated spring. With a Cv rating of 0.1, this valve is suited for low-flow pneumatic control circuits. It features NPT threaded ports and a red-colored body for quick visual identification in panel or manifold installations. Pneumatic system technicians and industrial maintenance professionals install this type of valve in compressed air control circuits.
This valve is designed for use in pneumatic control systems where manual, operator-initiated air direction is required without reliance on electrical controls. Typical applications include small actuator control, pilot signal switching, and manual override circuits in light industrial, automation, and compressed air distribution panels. The spring-return design ensures the valve defaults to the original flow state when the operator releases the button, making it appropriate for momentary control functions in compressed air systems operating at standard shop-air pressures.
Designed as an OEM-style or direct-replacement manually operated 3-way air valve for low-flow pneumatic control circuits using NPT threaded connections.
Installation of pneumatic control valves should be performed by a qualified pneumatic systems technician or industrial maintenance professional. Depressurize and lock out the compressed air supply before removing or installing any valve in a pneumatic circuit. Verify that all downstream actuators and circuit components are compatible with the valve flow rating and port thread type before completing the installation. Follow applicable facility safety and compressed air system codes when integrating into existing control panels or manifolds.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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