I am applied 100 % pressure on to the air to open control valve,but the valve is not fully closed..and 10-15% is open the valve. how to calibrate the control valve?

3 Answers   OPaL,

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Why drum level range is given -500 to 0 mmwc pls give me that answer

1 Answers  

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what is plc?

27 Answers   HPCL, KRL, Noor Company, Petrochemicals, SS Automation,

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what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?

0 Answers  

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how to define range of dp level xmeter in open tank

1 Answers  

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How to find the range of DP cell Transmitter for measurement of level in closed vessel.

3 Answers   Rosemount,

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Any body have know try work calculation ???

0 Answers  

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how level can be measured in open tank with reference to pressure

1 Answers   Atul, INOX,

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ABB DCS (AC 800 M)redundency take howmany milliseconds to switch from master controller to slave?should be less than DCS scanning time?

2 Answers   SCS,

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1.what is the role of proportional comtroller in pid controller?2.How do u calibrate the control valve?

3 Answers   Bently, IOCL,

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Which instrument used to calibrate the pressure switch?

8 Answers  

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re i got gre score of 950,and toefl of 69 is this score sufficient actually my husband is presently in US i need to go please help me

1 Answers  

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