Automatic Control Valves, Flow Control valve
Automatic Control Valves
Automatic Flow Control Valve
A flow control valve regulates the flow or pressure of a fluid. Flow Control valves normally respond to signals generated by independent devices such as flow meters or temperature gauges. Control valves are normally fitted with actuators and positioners. Pneumatically-actuated globe valves are widely used for control purposes in many industries, although quarter-turn types such as (modified) ball and butterfly valves are also used.
Control valves can also work with hydraulic actuators (also known as hydraulic pilots). These types of valves are also known as Automatic Control Valves. The hydraulic actuators will respond to changes of pressure or flow and will open/close the valve.
Automatic Control Valves do not require an external power source, meaning that the fluid pressure is enough for opening and closing the valve.
Automatic control valves include: