what is the meaning of reverse action and forward action of
control valve...
Answer Posted / j arumugam
if control variable(CV) INCREASES process variable
INCREASES is called Direct acting (Gain < 0)
if control variable(CV) INCREASES process variable
DECREASES is called Reverse acting (Gain > 0)
| Is This Answer Correct ? | 3 Yes | 2 No |
Post New Answer View All Answers
Linear amplifier.
hye SAM acn u send your e mail id, so that i can solve my query through e mail?
while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?
when placing a vent or drain hole on an orifice plate should you measure from the center of the bore up or down for the vent placement?
Difference between 2-Valve Manifolds, 3-Valve Manifolds and 5-Valve Manifolds 3 with diagram
what is the procedure to callibrate temp controller ,pressure controller,etc. suppose a temp controller showing error 1.5 degree centigrate how can i minimize it.
List three types Level Switches with their working principles
Can any body help to get Rsemulator 5000 free from internet if possible then give me any link or any help .
Where are oxygen analysers installed in cfbc boilers? What are their usual readings?
Describe how to use megger to measure the earth resistance and insulation resistance
1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.
plz tell me clearly about PID.."when v have to change I value,D value,GAIN??
this site is owned by an nonsense
What is Positive Calibration and Negative Calibration?
what are the different types of Protocols? & their applications.