what is electric motorised valve working principle.

1 Answers  

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few questions on RS 232,1 question on relationship of impedance and turns ratio, many questions on flowmeters

0 Answers   Monnet,

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for what purpose strain guage is used?

5 Answers  

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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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what are the difference between conventional and smart transmitter.

1 Answers  

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When LP SURGE happening in compressor

3 Answers   KNPC, KOC,

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difference between plc and dcs?

3 Answers   Honeywell,

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Type of level transmitter commnly used in Procees area are the following. a.________________This type of level transmitter works as follows

0 Answers  

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Calibration procedure for Electro magnetic Flow meter

0 Answers   Reliance,

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why full bore ball valve is not used in steam applications?

1 Answers  

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given a processor batch of 1000 resistors moving on the conveyor belting in a large factory. the resistors is value at 10k ohms each but when the resistors reach the quality control, some of the resistor has been rejected caused by failure in manufacturing.the high quality measurement is used to determine the failure. describe the instrumentation terminology in measurement of a system above with explaining the important in:- -reliability -sensitivity -repeatability -precision -range -resolution -linearity -hysteresis -error -accuracy (answer must related to the scenario above)

0 Answers  

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IS THEIR ANY AGEING EFFECT ON FLOW NOZZLE, ORIFICE, MANIFOLD, OR TRANSMITTER ?

1 Answers  

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