I'm lookin for help specially from those who have been in industry.
I'm trying to size valves for simulation purpose only,i.e. I'm not
going to install the valve, just sizing them to match well with the
whole model part of the concerned process.
Following the sizing procedure that is available in the literature;I
got the following:
The flow cofficient of the water control valve is 58. Then if the
selected valve is globe valve from fisher design ED of classes 300
with linear characteristics, then the size of the valve will be
FoLLOWING THe same procedure for oil and gas phases I got the
4-inch for oil and gas.
Unfortunately I couldn't find on the fisher cataloque the time
constant or response time of these valves. it is very essential in my
simulation to include the dynamics of the control valves.
So I'm kindly requesting from anyone who has experience with control
valves to help me in the following:
1- what is the typical time constant for control valve?
2- The suitable time constants for the control valves with sizes
thanx and waiting for help as soon as possible.
17 years ago