what is the basic working principle of I/P and Positioner in any control valve.

12 Answers   Essar, Visa Steel,

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What are primary elements of measuring pressure?

0 Answers  

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hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

0 Answers  

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Q-Explain the different load conditions that will produced different offset which may or may not be acceptable to thhe control function

0 Answers   Reliance,

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why we require Differential pressure?Why we use Orifice Plate?

3 Answers  

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How to calibrate smoke Dectector

0 Answers   KOC,

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Wht is Dry Leg Calibration and Wet Leg Calibration?

2 Answers  

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Explain " FAIL SAFE " feature in temp. measurement.

1 Answers   Bapco Bahrain Petroleum Company,

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what is PID n give me brief info. about P&I&D.

2 Answers  

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Anybody can tell me  how to convert mmHg2o /psi to scfm  please give me formula of conversion

0 Answers   Samsung,

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please send the drdo exam paper

0 Answers   DRDO,

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i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure

0 Answers  

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