Great , well done . But in this animation only globe valve is to control flow (throttling). What about other valves . They can not be used for control flow (throttling) ?
Ya actually in the last part, it concept states that when the feedback signal from the stem which is connected to a motor will be in the form of a measured variable right. And one that coming out from the servo amp will be manipulated variable. So basically what does a control valve does, it adjusts the manipulated variable in adjust the controlled variable to the set point (Since this is the ultimate aim in the process control system). So the valve plug will move up and down in relation to when there is difference in the values of set point and controlled variable (One to be controlled). And when the deviation almost diminishes (I.e result or reading coming closer to the set point), there is no need for valve to move because the set point is reached. I hope you get it. This was the principle explained at the last.
Thumbs up video about different types of control valve actuators! Clear and concise presentation. Many thanks
Awesome, many thanks !
very nice and clear presentation. Thanks
Clear and helpful
Great , well done .
But in this animation only globe valve is to control flow (throttling). What about other valves . They can not be used for control flow (throttling) ?
Thanks good presentation
Sema . Kalakiteenga ponga. Magizhchi .
thank u great info
how can be 3-15PSI air supply pressure can downward or upward the diaphragm against spring? can you explain this to me?
very nice information
I miss the positioner because it actually sends a pressure higher than 15psi to the diaphragm and receive a pressure of 40 psi.
it the the best...just the best thank u so much
Nice introduction but last one was little bit difficult and complex.
Ya actually in the last part, it concept states that when the feedback signal from the stem which is connected to a motor will be in the form of a measured variable right. And one that coming out from the servo amp will be manipulated variable. So basically what does a control valve does, it adjusts the manipulated variable in adjust the controlled variable to the set point (Since this is the ultimate aim in the process control system). So the valve plug will move up and down in relation to when there is difference in the values of set point and controlled variable (One to be controlled). And when the deviation almost diminishes (I.e result or reading coming closer to the set point), there is no need for valve to move because the set point is reached. I hope you get it. This was the principle explained at the last.
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Great putri ooe