Answer / m.hassanabbas

against loading pressure(bench set),the travel of control
valve is the load line of control valve.

Answer / faiyaz ahmad

flow of fluids in control valve its called load line of control valve

Answer / amit

As Due To Change In Flow If it Is Terbulent flow, Cavitation and Flashing Occurs due to whoch Load Ocurs on the Control Valve.

I want to measure level under vaccum by using DP Tx and vaccum vary between -500 to -670 mmHg and process fluid is accetic anhydride if consider process fluid density 1 kg/cm2. how to calibrate Tx ? consider level is 0 to 100 Cm.

1 Answers   CCC,

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A DP Endress and Hauser flow transmitter is always tripping pump at low flow. set point is 74 cubic meter/hr. Thorough impulse line flushing and zero calibration has been done, yet problem persists. What do you think is the problem and how do you rectify this fault?

5 Answers  

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what is interface level measurement.who can calibrate interface level measurement transmitter online

0 Answers  

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1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC

0 Answers   IOCL, Lakshmi Machine Works,

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How to Calibrate Level Switch in field

0 Answers  

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If a flow transmitter (magnetic type FT) that can measure flow and temperature, then why in some industries people use flow transmitter and temperature transmitter in the same line 1 after another? Even after 1 single flow FT is capable of measuring flow as well as temperature.

1 Answers   Process Control Technologies,

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we are used SAMSON 3730 Smart positioner.please tell me how to calibration this.

1 Answers   TCCL,

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How can we test a bently nevda 3500/42M accelerometer monitor card by simulating it with test equipment?. what king od of signal (milli volts or volts or or resistance ) we should feed in the terminals of the card?

0 Answers  

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WHAT ARE THE INSTRUMENTAL DIAGRAMSOF VALVES?

0 Answers   Artikal, ITC Infotech,

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how to callibrate a new i/p converter

7 Answers   TATA,

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sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers

0 Answers  

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What is PID tunning

2 Answers   EID Parry, MFL,

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