The Pneumadyne Inc. Manual Air Control Valve is a 3-way valve that allows manual control of air flow. It has brass construction with a chrome-plated finish and includes a locking handle to hold valve position. This valve has 1/4" NPT female pipe thread ports and a maximum pressure rating of 250 PSI. The operating temperature range is -20 to 180°F. Key features include the ability to manually adjust air flow, a locking handle for holding valve position, brass and chrome construction, and 1/4" NPT ports. This valve provides manual air flow control for industrial pneumatic applications.