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.

What is hp & mp seperator .& what is its working principle ?

0 Answers   Chevron,

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why do 4 mA serves as 0% not 0 mA?

10 Answers  

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when i installed Allen_bradley_RsLogix_500_Pro_V_7.0,after installation it gives the fatal error.it need activation file.from where and how i can find its activation file.

6 Answers  

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i am confusing about differential pressure transmitter as i seen so many DPTs in different ranges how can we calculate level and flow with mmh20 plz tel me

1 Answers  

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what is meant by orderm of a system. will the stability of a system increases by incresing order of a system

1 Answers  

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Explain the difference between mmwc and mmwg?

0 Answers  

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How to zero trim the level transmitter by using foundation fieldbus communicator.

2 Answers   Emerson,

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please give me combustion cntrl interlock details? if possidle drawing also?for this one is there any website ?

1 Answers  

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what is the difference between AUTOMATION AND INSTRUMENTATION?

7 Answers  

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If we increase D what will be the controller action?

2 Answers  

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a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?

2 Answers  

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How to rerange a dp type level transmitter after installation?

1 Answers   NSH,

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