how to calculate control valve bonnet size?? or how to select its material?

0 Answers   Jacobs,

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how to calibate level transmiter ?range -150 to +150.what is the zero and span?

1 Answers  

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Dear All can any one told me that VFD Make ABB Model ACS800-01 used for dual Source like 1.DC Source applied at terminal UDC+,UDC- 2. 3 phase 400AC,50Hz

1 Answers  

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What is the Difference between E/P Positioner and I/P positioner in a control valve? In which applications the respective positioners are used in?

18 Answers   ADCO,

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i want to Measure the Difference pressure of Packed distillation Column of height 3 mtr. h.p. side connected to bottom & L.P. side connected to the top , so tell me what will be THE URV & LRV of that D.P. transmitter?

5 Answers  

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DC motor and DC Drives working funda?

1 Answers  

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What is the start up procedure of desalter

0 Answers   Reliance,

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What is difference between flame retardant & flame resistance cable? Among which type of cable is used for ESD & Fire and Gas system application?

1 Answers  

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how to calibrate displacer type level transmitter by dry weight method please mention formula for weight calculation

1 Answers  

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Which of the following instruments consumes maximum power during measurement?

3 Answers  

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How to calculate mmwc values into tonnes?

0 Answers  

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Draw a 3 element level control loop and explain

1 Answers   CCIE,

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