Single acting ON-OFF valve. it is air to open. when sov energized , valve will be open, so during that if air fail then what will be the condition of valve ( open or close ) ???

4 Answers  

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can we use flow transmitter instead of level transmitter?

7 Answers  

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1)What is the suitable MOC for flow meters working at temperature between 200 - 250 cen. 2)In which application the mass flow meters are not advisable 3)Is it advisable to use radiation type or radar type instrument for non contact application

1 Answers  

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Explain the use of hair spring in the pressure gauge.

0 Answers  

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what is the deluge ? How can its working?

2 Answers   KOC,

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Is there any temperature compenasation for the air flow from FD fan & SA fans which supplies air to the Boiler?

2 Answers  

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Why we are using 4-20 mA as Analog signal transmission other than 3 to 19 or 2 to 18 or 6 to 22 like wise ? What is the reason behind using 4 & 20 mA? Can anyone give proper technical reply ?

5 Answers   Air Liquide,

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What is rtd output signal

4 Answers   Nestle,

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I am a instrument technician. recently i attend interview and face one of question for DP transmitter ,the client asking about the calibration of DP transmitter ,am answer the calibration procedure, they will ask one more question. why open LP side in atmosphere? i did not answer that question. so please help me and explain the particular question. Dear firends waiting for your valuable replay

3 Answers   Qatar Petroleums, Samsung,

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How does one detrmine the direction of movement of core in an LVDT?

2 Answers   Honeywell,

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Why the Air Tank Accumulators required for the single acting actuators SDV's or BDV's as I see in some Schematic diagrams of ROTORK ??

2 Answers   L&T, Siemens,

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How to convert gpm into inches of eater.I nerd formula with example so pls help me.

1 Answers  

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