Procedure for replacement of Valve Stem Packing
Regardless of the type of valves used, all control valves which are stem-actuated require some kind of sealing material to permit stem motion through an...
Tag : control valves
Working of Temperature Control Valve TCV
A brief overview of temperature control valve: Temperature control valves (TCV) are known as De-super heaters, Attemperatures, or temperature regulators. They are referred to as...
Measurement of the dead band in a control valve
The control valve with a dead band behaves like there may be some kind of resistance or response between the output of the controller and...
How to specify control valves for process applications
Specification of a control valve begins with a control loop. The control loop in every industrial application includes transmitters to transmit the signal to the...
How a Typical Control Valve Loop Works
In every control system of the process industry, the control valves are the most essential element to control or regulate the fluid flow in a...
Seat leakage Classification of Control Valve
In many process and industrial applications, the fundamental requirement is that a control valve must be able to control the flow rate or stop the...
Control Valve Flashing
What is a control valve flashing? When a process fluid has flowed through restriction of the control valve. There is an increase in the velocity...
Working of Direct Acting and Reverse Acting Control Valve Loop
What is the controller action? The controller action is defined as the function of the controller. The controller action determines whether The controller output increases...
How Cavitation happens in a Control Valve?
Cavitation is a phenomenon that occurs in a control valve during sizing control valves for liquid flow applications. Cavitation in the valve occurs in fluid...
Basic Types of Control Valve Actuators
The valve actuator is a part of the control valve assembly fitted to it. In any control loop, the valve actuator receives a control signal...