Pro-source 2556138366PRO Air Flow Control Valve 3/8 in

Product Description

The PRO-SOURCE 2556138366PRO is a meter-out screw-adjusted flow control valve designed to regulate airflow in pneumatic systems by controlling the exhaust side of the circuit. Built from nickel-plated brass, this valve offers corrosion resistance suitable for industrial and trade pneumatic applications. The 3/8 inch tube OD push-to-connect fitting paired with a 3/8 inch male thread allows straightforward integration into compressed air lines. A manual screw adjustment provides precise restriction of outgoing airflow, enabling controlled actuator speed and consistent cycle timing in air-driven equipment. It weighs 0.19 pounds and ships as a single unit. Licensed trades including millwrights, pipefitters, and industrial mechanics commonly install this type of fitting in pneumatic control circuits.

This valve suits pneumatic control systems in commercial and industrial environments where metered exhaust flow is required to manage cylinder speed or actuator response. Typical applications include pneumatic cylinders, directional control valve exhaust ports, and automated assembly equipment. The universal thread type and Buna nitrile O-ring construction make it adaptable across a range of compressed air system configurations operating at standard shop-air pressures.

Key Features

• Meter-out design controls airflow on the exhaust side for precise actuator speed regulation
• Screw-adjusted manual flow restriction for repeatable setting without additional tools
• Nickel-plated brass body provides corrosion resistance in compressed air environments
• 3/8 inch tube OD push-to-connect port for fast, tool-free tubing attachment
• Buna nitrile O-ring seals maintain integrity across typical industrial temperature ranges
• Universal thread type accommodates common male thread configurations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for pneumatic flow control applications using 3/8 inch OD tubing and 3/8 inch male threaded ports in compressed air circuits.

Installation Notes

Installation should be performed by a qualified pipefitter or pneumatic systems technician. Depressurize the air system completely before removing or installing any flow control fitting. Verify thread engagement and tubing seating before re-pressurizing to check for leaks. Do not overtighten the screw adjuster beyond finger-snug resistance, as brass fittings can be damaged by excessive torque on the adjustment mechanism.