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.

dear friends, i have seen flow as the selection critriea in presure guage (bourdon tube) and i would like to know what is the relation between flow and performance of pressure guage other parameters i found in the data sheet are pressure max. 1ksc temperature max. - 50 deg c line size - 80NB operating range - 1ksc pr. guage range - 0-2 ksc thank u,

0 Answers  

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How to connect another 24 volt dc power supply in circuit when previous power supply has become weak.what is the connection?

2 Answers   Bhole Baba Dairy Industries,

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i want to measure temp of hot sand(welding flux) in closed chamber(around 150 deg C).Which is better thermocouple or thermometer?

1 Answers  

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what pressure transmitter?

8 Answers   Bhel,

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How EMF is generated in Thermocouple

3 Answers  

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what is the T/C & RTD mesuremaint?

3 Answers  

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Explain the use of hair spring in the pressure gauge.

0 Answers  

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how to rectify the problem ,if we erected the DPT instrument wrongly of hp on lp side and lp on hp side?

5 Answers  

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Why is the orifice tab provided?

0 Answers  

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what is the different between deflection type measurement and null type measurement in RTD?

0 Answers   SHR Solutions,

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Types of contol loops

2 Answers  

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what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

1 Answers   ABB,

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