Answer / raj ups

I think the direct action control valve generally used in
pressure control loop as we r using it in the vapour release
vale as pressure incresese as greatter as the set point the
opening of the valve rises as quickly

Answer / umair naz mughal

direct action control valce is mostli use boiler section because if the water flow is reduce the temp is rise and boiler was damage so we use this valve this is normally open.

all types instrumentation questions want

0 Answers   Bhel, Descon, HBL Power Systems,

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1. What is the main differences between GE Mark IV and Mark V Turbine Control System? 2. what is the main differences between GE Mark V and Mark VI?

2 Answers   GE,

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what is PM/CM/RCM?

2 Answers   Emco,

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How to convert 0-2500mmH2o into kg/hr? Or how to convert mmH2O into kg/hr,t/hr etc

2 Answers  

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What is zero elevation and zero suppression?

0 Answers   CCIE,

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Explain types of valves?

0 Answers  

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What is difference between reset and initialization in industrial automation?

1 Answers   Marafiq,

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why in vortex flow transmitter dcs range is configuring less than sensor range. eg (sensor range 500-25000 kg/hr and dcs range 0-24000 kg/hr).

1 Answers   Daelim,

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hey any one got the papers of SAIL and HPCL plz do help me by posting them to my mail ID's naren07_87@yaho.co.in, surenarendra@gmail.com

0 Answers  

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What is hook's law

4 Answers  

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what is the pressure in the tank when its level of liquid is 1.5 meters when its total capacity is 2 meters

2 Answers   Engro,

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in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

0 Answers  

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