WHAT IS THE MASS FLOW FLOW METER

4 Answers   Reliance,

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why we connect digital multimeter in series for dc current measurement and parallel for dc voltage measurement.

4 Answers  

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how can you change unit of totalizer in siemens mag 5000 flow meter?

2 Answers   PowerTech,

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how to calibrate pressure gauge(we can not able to fixed by pointer screw adjustment and pointer re fixing method)

2 Answers   Nestle, Reliance,

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There is a problem with our HART475 it is not communicating with smart devices error becomes "NO DEVICE FOUND"we have insert 250ohm resistance as per requirement but invain plz tell me the solution?

1 Answers  

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how the actually positioner of control valve working? where we gave 3-15psi pressure to I/P converter where it is firstly applied ?- on I/P to positioner then what happen? is control valve operate on 3-15 psi or its bench pressure?

2 Answers  

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Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72

0 Answers  

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I have got a call of IOCL interview for projects having 2yrs experience. What sort of questions should I expect in the interview?

0 Answers   IOCL,

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What is the Difference between E/P Positioner and I/P positioner in a control valve? In which applications the respective positioners are used in?

18 Answers   ADCO,

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is any standard angle for thermowell mounting for horizontal and vertical pipe lines?

3 Answers  

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basic connection and principle of axial shift sensor n differential sensors in tubine describes n draw......

0 Answers  

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Why flow/pressure transmitter before control valve?

0 Answers   UPL,

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