PNEUMATIC VALVE
A 3/2 lock-down valve (also called a 3/2 latching push-button valve) is a manually operated pneumatic valve with: A 5/2 lock-down valve is a directional control valve with: When the operator presses the button, the valve changes position and locks in place, maintaining airflow. The valve stays actuated until the operator pulls, twists, or unlocks the button to return it to its normal position.