S
i have some confusion about control valve choking phenomena.
1> One plant is running there is one control valve which is not choking at any design process condition, if i will replace that control valve with same one but it will choked at normal condition.then what is affect on process dynamics?
2> Fisher say that if you use harden trim then there is no problem, how it is possible because choking define that if your flow will not inc. even if you increase dp!!!!!!!
plz help me
Regards,
Shailesh C Patel
FDC - Control Systems And Instrumentation
1> One plant is running there is one control valve which is not choking at any design process condition, if i will replace that control valve with same one but it will choked at normal condition.then what is affect on process dynamics?
2> Fisher say that if you use harden trim then there is no problem, how it is possible because choking define that if your flow will not inc. even if you increase dp!!!!!!!
plz help me
Regards,
Shailesh C Patel
FDC - Control Systems And Instrumentation