Pro-source 4330221912PRO 3-way Palm Button Air Valve

Product Description

The PRO-SOURCE 4330221912PRO is a manually operated 3-way pneumatic air valve actuated by a palm button with spring return. It controls compressed air flow in pneumatic circuits through a direct mechanical action - no electrical signal required. The valve carries a Cv rating of 0.1, making it suited for low-flow control applications. NPT threading ensures compatibility with standard pipe fittings used in industrial and trade pneumatic systems. At 0.23 pounds, it is a compact, lightweight component typically installed by industrial maintenance technicians or pneumatic system integrators.

This valve is designed for use in pneumatic control circuits where a manual, momentary actuation is needed. The palm button actuator is a common choice for machine guarding, press control, and other applications where an operator physically initiates an air signal. The spring-return mechanism automatically resets the valve to its default position when the button is released, providing predictable two-position switching behavior. The green color coding aids in panel identification.

Key Features

• 3-way, 2-position manual mechanical valve design
• Palm button actuator with spring return for momentary operation
• Cv rating of 0.1 for low-flow pneumatic circuit control
• NPT threaded ports for standard pipe connection
• Green color for visual panel identification
• Compact footprint at 1.77 inches wide and 3.29 inches tall

Compatibility

Designed as an OEM-style replacement or direct-install component for standard NPT-ported pneumatic control circuits requiring a 3-way, 2-position palm button valve.

Installation Notes

Installation should be performed by a qualified pneumatic systems technician or industrial maintenance professional. Depressurize the pneumatic circuit completely before removing or installing any valve. NPT fittings should be sealed with appropriate thread tape or sealant per system requirements. Verify port orientation and flow path against the circuit schematic before applying system pressure.