The final control elements perform their functions according to the commands of this control room. A self-regulated valve adjust the flow using the fluid flow...
Introduction Pneumatically operated control valve actuators are the most popular in use, but electric, hydraulic and manual Actuators are also widely used. The pneumatic spring...
Small sizes of globe valves fitted with a finely tapered plug are known as needle valves. Needle valves are used to control the flow precisely. Needle...
A valve positioner is a final control device used to position the valve actuators correctly at the control position. In applying a force to an actuator,...