If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

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Why we use 4 - 20 ma?

6 Answers   IJT, ONGC,

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our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS

0 Answers  

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how we can check level probe and controller

2 Answers  

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what is the process for double acting cylinder pneumatic for 32' v/v

0 Answers  

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when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

2 Answers  

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How to decrease opening & closing time of on/off valve?

0 Answers   UPL,

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what is KV and XV valve

0 Answers  

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1 bar is equal to how many pound per square inch(psi)?

14 Answers   Essar,

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WE Know that different supply voltage of solenoid valve like 24,110,220 etc..how we check the solenoid supply is 24v or 220 NOTE: No specification at device.

2 Answers   OMV,

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Why Instrumentation Air Compressor called as Instrumentation Air compressor?pls dont just tell its trasferring IA to all transmitter,valves.I need exact reason, please......................

2 Answers  

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Explain about SOURCING & SINKING concepts in PLC to field sensor wiring ?

4 Answers   GATE,

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