Description
A flow control valve regulates the flow or pressure of a fluid (liquid or gas). Control valves normally respond to signals generated by independent devices such as a flow control meter or a temperature gauge. Control valves are normally fitted with actuators and positioners. Globe Valves and Diaphragm Valves are widely used for control purposes in many industries, although quarter-turn types such as specifically modified ball valves, gate valves and butterfly valves are also used. Process plants consist of hundreds, or even thousands, of control loops all networked together to produce a product to be offered for sale. Each of these control loops is designed to keep some important process variable such as pressure, flow, level, temperature, all within a required operating range to ensure the quality of the end product. Each of these loops receives and internally creates disturbances that detrimentally affect the process variable, and interaction from other loops in the network provides disturbances that influence the process variable. To reduce the effect of these load disturbances, sensors and transmitters collect information about the process variable and its relationship to some desired set point. The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds. This is used to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point Ultra Control Valves have various Flow Control Valves in its range
- Ultra ACV Pilot operated Flow control valve
- C-Valve Pilot operated Flow Control valve
- Maric
- Ultra V-Notch Ball Control valve
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