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The PRO-SOURCE 4550331010PRO is a 5-way, 3-position manually operated directional control valve actuated by a hand lever with detent positioning. Designed for pneumatic circuit control, it allows the operator to select and hold one of three flow-path configurations without continuous hand pressure, thanks to the detent mechanism. With a Cv rating of 1.897 and NPT threaded ports, this valve suits industrial and mechanical pneumatic systems where reliable manual directional control is required. It measures 4.13 inches in height, 4.49 inches in length, and 1.81 inches in width, weighing 1.05 pounds. Pneumatic system technicians and industrial maintenance professionals are the primary installers.
This valve fits pneumatic directional control applications in industrial facilities, manufacturing lines, and mechanical systems requiring manual operator control of airflow direction. The 5-way configuration supports double-acting actuators and cylinders, making it a standard choice for extend-retract or similar motion-control circuits. The 3-position detent design is particularly suited to applications where a center exhaust or center blocked condition must be maintained between cycles without operator holding force.
Designed as an OEM-style replacement or direct-fit manual directional control valve for standard NPT-ported pneumatic circuits requiring a 5-way, 3-position lever valve.
Installation should be performed by a qualified pneumatic systems technician or industrial maintenance professional. Depressurize and lock out the pneumatic circuit before removing or installing the valve. Ensure all NPT connections are made with appropriate thread sealant rated for pneumatic service and confirm port sizing matches the existing circuit plumbing. Verify correct flow-path orientation before returning the system to service.
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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