Air Flow Control Valve Operation

Selecting the right flow control valve.

Air flow control valve operation.

These valves close all ports in the off position to stop equipment in a locked position with air pressure holding it in place. Designed for continuous operation particularly suitable for variable duties. Often used to extend and then retract a cylinder at different speeds they create two actions and have two exhaust ports which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. 4 way 3 position manual air control valves provide high flow.

These valves close all ports in the off position to stop equipment in a locked position with air pressure holding it in place. Balanced spool and sleeve design with easy operation regardless of system pressure. In automatic control terminology a control valve is termed a final control element. This enables the direct control of flow rate and the consequential control of process quantities such as pressure temperature and liquid level.

Due to the free central flow design and automatic self cleaning feature of the segment edges during valve operation flushing connections are provided. Also known as 4 way and 5 3 closed center valves. Flow control valves are used to reduce the rate of flow in a section of a pneumatic circuit resulting in a slower actuator speed. They create two actions and have two exhaust ports which allows you to control the speed of each action by attaching a flow control valve to each exhaust port.

Unlike a needle valve a flow control valve regulates air flow in only one direction allowing free flow in the opposite direction.