what is the diffrence between pressure safety valve & pressure relief valve....pls

0 Answers   Oil India,

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please give me combustion cntrl interlock details? if possidle drawing also?for this one is there any website ?

1 Answers  

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What are the Components of Siemens S7 300 Series PLC system ?

1 Answers   Siemens,

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what is interlock system and why we use of this?

0 Answers  

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Why thermo wells are used?

1 Answers  

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What is the relationship between GAIN and PROPORTIONAL BAND.

1 Answers   Kharafi National, Sabic,

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why we are using MARSHALLING PANEL? what is the role?

5 Answers  

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Hi, am aniket, I got engineering degree in instrumentation and control, but as their were no job availabilities for engineer's post I started working as instrumentation technician I kuwait, so my question is is this technician's experience worth for getting the position of engineer?

1 Answers   Almeer Technical Services,

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how control valve works?

7 Answers   Qatar Airlines,

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Why the Proximitor supply should be Negative voltage? Why should not we give Positive voltage to the Transducer?

6 Answers   Moser Baer,

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in my plant 100% feedwater control v/v is air to close but due to instrument air fail,the valve opens but instead of drum level high its get tripped in low low drum level.the urv of level tx is 0 and lrv is -800.pls tell me the reason. for such behaviour.

1 Answers   Sirpur Paper Mill,

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What are SMART insuments?

5 Answers  

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