what is control valve and how is work

Answer Posted / carl_ellis

What is a control valve and how does it work?

A control valve is a mechanical device that removes energy
from a hydraulic (liquid, gas, or steam) flow stream.

It works by partially or fully blocking the flow stream.

Carl Ellis
Measure First

Is This Answer Correct ?    6 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

please can any one tell me clearly about pid tuning i am confusing about this .how to tune pid easly?

1698


please send the drdo exam paper

1963


How to decrease opening & closing time of on/off valve?

977


What is standard procedure of manual mapping in Radar type level transmitter?

1430


how to work MIL contol valve posistioner ?

1709






how to calibrate corollaries (Mass flow meter)?

1653


In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?

1415


how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?

5231


Im having problems with interfase betwen SPI v7.0 and SPPID v5.05. Previous versions of Intools shoul be fixed with SPPIDproj.ocx file. It was necessary to replace this file with one that allows the connection between different versions of SPPID. It is necessary in the current version to do the same?Thanks

1869


Is it ok, to use non-contact type Radar type LT, on a tank that is half circular from the bottom side? If yes the, isn't the waves gonna bent in other directions? 

1728


What is the differerence between hysterisis and linearity.

1830


What is zener diode? What is voltage regulator?

645


Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

1692


kindly sent some demo question and answer

1548


How to fix back the valve actuator stem

1620