how to calibrate absolute pressure transmitter

7 Answers   ABB,

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In most process, speed of motor controlled by control system with a reference pot . Now if i start & it becomes uncontrollable, i.e.gets directly start & stop after certain time.Then which reasons can make such problem? can motor may be faulty?how?

3 Answers   Siemens,

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why we are not using the turbine flow meter in the steam service?

0 Answers   Jaypee,

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In bimetallic temp. Gauges why does metal strip bend? Why do we use low expansion factor metal and high expansion factor metal in bimetaliv strip?

1 Answers   Process Control Technologies,

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what is meant by orderm of a system. will the stability of a system increases by incresing order of a system

1 Answers  

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what is AWG?

2 Answers   NTPC,

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In control valve there are two type of valve seat we can use metal to metal seat & soft seat.On this valve seat i have following doubt. 1)I have never seen practically the internal assembly of valve so my doubt is that basically weather the seat is soft seat or metal its basic MOC is same as valve body(SS or CS) only in soft seat we are using PTFE ring & place on valve seat & in metal this PTFE ring is not threr am i correct??????? 2)what are the common general rule for using metal to metal seat & soft seat,means its depend on process parameter like liquid,gas, steam & on valve leakage class.

1 Answers  

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Question on maha cement

0 Answers  

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What is pipe schedule? What are all effects its having in the valve? how do we take care of pipe sch in case if the customer dint specify in the data sheet. What we need assume and in what basis?

3 Answers  

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Explain the combusion chamber

0 Answers   IFFCO,

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dear friends pls tell me how temperature compensations are done in bourdoun tube of pressure guages thankx

1 Answers  

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the output of the common trasmitter protocol in qatar gas are the following

0 Answers  

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