difference b/w single acting and double acting actuator by using application only?

2 Answers   McDermott,

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what is cavitation in control valve? & how we can avoid it?

1 Answers   Forbes Marshall, Reliance,

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What means zero and span in transmitter callibration.

8 Answers   Bajaj, Wartsila,

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Working principle of vibration sensor?, Type of vibration sensor? , Can we use vertical instead of horizental or vice versa?, if not Reasons?

2 Answers  

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WHAT IS ANNUBAR?

7 Answers  

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why 4-20 mA signal is preferred over a 0-10V signal

17 Answers   Sofcon,

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i want to make project on process control using plc.please give me idea about this.

2 Answers  

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how commission a transmitter evev plant is already running

2 Answers  

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I have a problem with a valve (air to close). When it is fully closed and try to open 1% it doesn't responce till 3% open suddenly more than 3% then back to 3%. I tried to tune positioner then removed it, the problem still exist. Any idea

3 Answers  

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p=hdg,please explain these parameters?

7 Answers  

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Which type of diagphram use in costic line,DM water line,natural gas line,oil line?

1 Answers   Hindustan Zinc,

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what is the procedure to isolate flow a transmitter and flushing it?

8 Answers   Petrofac,

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