how pressure reduce through pressure control valve? suppose we have to reduce 20 kg pressure to 10 kg pressure , then what we do ? open the valve or close the valve , initially it is 20 % is upon ( for ur knowledge ).

4 Answers   TATA,

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Q- In the process of checking AC through Phase Tester our body is the part of circuit but we don't recevie Shock, Why ?

2 Answers  

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What is the use of valve positioner?

1 Answers   CCIE,

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Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?

0 Answers  

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What is the formula to know the error of weighfeeder after having drop test.

3 Answers  

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why the positioner output is 3-15psi

5 Answers  

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what is loop folder?

1 Answers   Bapco Bahrain Petroleum Company, Hyundai,

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why 4 to 20 ma used at 0 set

2 Answers   Borouge, Yokogawa,

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what is the difference between magnetic flow meter and mass flowmeter

0 Answers  

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flow transmitter formula?

0 Answers   BEMCO, Siemens, Yokogawa,

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explain the working of Coriolis Flowmeter.

2 Answers   ABB,

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Working principle of vibration sensor?, Type of vibration sensor? , Can we use vertical instead of horizental or vice versa?, if not Reasons?

2 Answers  

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