What is the difference between a double acting and single acting positioner? what type of valves use single acting positioners?

1 Answers   AquaTech, NamPower, Samson Resources,

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how u choose thermowell lenght n pnumatic C/v size?

0 Answers  

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What is derating factor in Motor?

1 Answers  

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can i get model question papers of mahagenco exam?

11 Answers   MahaGenco, MSGEN,

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How to calculate the flow rate in Vortex flow meter?What is K factor?Can you give me an example calculation to understand the same as better?

1 Answers   npcc, Zadco,

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1. For Steam drum level signal, why do we compensate with drum pressure signal? 2.For main steam Flow signal is comensated with main steam temperature signal and main steam pressure signal why?

0 Answers  

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what is the difference between laminor flow and turbulant flow

2 Answers   Invensys,

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Who to difference between analog in & analog out in dcs?

0 Answers  

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relation between flow and differential pressure.

7 Answers   ABB,

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What are SMART insuments?

5 Answers  

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What is modbus?

0 Answers  

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Why do we go for 4-20mA? why not other standara?

6 Answers  

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