Search Results for: control valve
Cascade Control System
Cascade In cascade control system two controllers are cascaded to each other as shown in the diagram below. Primary…
Read More »Common Control Loops
Common Control Loop 1.Flow Liquid flow processes are fast, typically 0.5 sec response or less. Gas flow is…
Read More »Process Control – Integral Control
Integral (or Reset) Control Integral control (also called Reset control) can be used when unacceptable amounts of offset…
Read More »Process Control – Proportional Control
Proportional Control In some processes, the fluctuations around the set point (called oscillation) may be too severe to achieve the…
Read More »Two-position control
With two-position control, the final control element may be in only one of two positions. These two positions are sometimes…
Read More »Instruments Used In Control Loop
Instruments I hope you have a general understanding what a feedback control loop is, if not please refer the following article…
Read More »Basics of Feedback Control – Elements of Feedback control
Feedback Control Feed-back control is gathering information on the controlled variable and comparing it to the set point; making a…
Read More »Components of Pneumatic Control System
Pneumatic Control System What is pneumatic ? Pneumatic is the technology that makes use of gas or pressurized air.…
Read More »Basics of Pressure Regulator (Pressure Reducing Valve – PRV)
Pressure regulatorSelf-Operated devices which work off the medium alonePressure reducing valve – PRV : Lowers inlet pressure to desired point…
Read More »Types of Valve
Valves are used for 1.Full flow of throttle :which is a wide range for valves use,because valves are designed in…
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