Please anyone answer my question, what is the difference between single acting and double acting control valve, in what condition we better choose single acting rather than double acting

2 Answers  

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Yokogawa mass flow meter shows negative reading...what r the main causes for this problem?...

3 Answers   IOCL,

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How to Calibrate Ultrasonic Level Transmitter in field

0 Answers  

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what is the meaning of HART ?

2 Answers  

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Waht is surge in compressors and how to control it?

1 Answers   DEWA,

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Draw a group of instruments interlocked to a Pump & Motor?

0 Answers  

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In dcs panel we are using diff type of modules ?what is module ? what is the use of modules ?diff type of module?

0 Answers  

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what is the meaning if the control valve CV is 27,in terms of selecting procedure?

2 Answers  

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How can we calibrate the level interface for Fisher® FIELDVUE® DLC3000?if use water to calibrate and our liquid SG are 0.75 and 1 ,Displacer height=14" and How much should be set SG in trasmitter during calibrate,for URV and LRV how shold be set

1 Answers  

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what is the working principle of hydra step(electronic level indicator)?

2 Answers   Bengal Energy, Lanco,

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What is PDS and PDMS ?

0 Answers  

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What is the maximum operative of Drive ?

2 Answers   Reddy Labs,

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