Answer Posted / samir
There are two types to define the control valve types:
(1)As per action
(2)As per design
1. As per Action : (a)Air to open (b)Air to close
2. As per design : Globe valve,Gate valve,Ball
valve,Diaphragm valve,Butterfly valve,Knife edge valve ect.
| Is This Answer Correct ? | 38 Yes | 5 No |
Post New Answer View All Answers
what are the diff. in servo and regulatory control?
Somebody can explain me about >Critical Loops, calibrations, ESD critical Loop checks, Logic Diagram / Cause & Effect checks for ESD loops,
What are different types of control valves?
How the warning lamp of a charging-system is activated ?
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 ?
In turbine what does term CDP, NH, HSSOC means.
I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?
sir ,iam in dem urgent need of HPCL Paper of Instrumentation Branch plz send me at your earliest convenience at ujjwal_sharma1983@yahoo.com
WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.
What is sensitivity in vibration probes..?
what is stroke check for field instument transmetter's & AOV's
what happen if i increase height of displacer type LT.accuracy or sensitivity are affected.why?
State four different types of flow measurement, for gas flow measurement MMSCFD is the common unit expand the unit and specify significance of word S in the unit.
What is hp & mp seperator .& what is its working principle ?
while am calibrating Drager polytron 2IR flame gas detector occured non zero status.how can i get zero status?