Answer / karthikeyan

No of gallons water flowing through a fully open control
valve with 1 psi pressure drop at 60 deg F.

Answer / yasser basahal

The CV of control valve is the capacity value of the valve

EXPLAIN NETWORK COMMUNICATION ON DCS?

0 Answers  

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How to calibrate DP transmitter by using HART communicator ?

1 Answers  

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why we are giving negative supply for vibration sensors?

3 Answers   Shell, Solex,

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which type signal come control valve

6 Answers  

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what is different between modbus and serial link? please could anybody give right answer.

2 Answers  

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what is different betwen Process zero and atm zero?

1 Answers  

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Explain the difference between the types of input variables plc?

1 Answers  

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a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?

2 Answers  

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I saw one P&ID 6" control valve has been connected with 8" process line, and 2" valve also connected in parallel with 6" valve. why the 2" valve connected in parallel, Is there any technical reason. please clarify. With Regards-Kittu

5 Answers   GNFC,

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What is the use of +/- 20ma in analog measurement,and which instrument gives +/-20ma output

1 Answers  

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Definition of reverse and acting controllers:

0 Answers   Monnet,

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Why mixer nd grinder Is example of constant torque load not variable torque load ???

0 Answers  

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