how to connect the HART protocal with control valves

1 Answers  

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what should be minimum length and size of impulse line for steam flow orifice and feed water orifice? asked by sanjay parihar

1 Answers   Birla,

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give some question relative instrument fitter?

0 Answers   Armco,

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Exapain Deatails of the PID controlller

4 Answers  

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Coal mill Instruments Equipments for cement plant And process diagram ?

0 Answers  

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What do you know about gail?

0 Answers   GAIL,

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what is the minimum power (P=VI)to produce a spark?

0 Answers  

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What is the difference between fire detector and smoke detector?

5 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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wt is cold junction compensation

1 Answers  

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1.what is the power consumption of three element drum level control in sugar industries? 2.how to reduce that?

0 Answers  

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How will you change the action of a control valve?

1 Answers   CCIE,

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