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  1. neroverdi41

    Control Valve CFD Analysis

    Thank you for your information. I will definitely take this into consideration.
  2. neroverdi41

    Axial Control Valve Sizing

    Thank you for your information. I will definitely take this into consideration.
  3. neroverdi41

    Axial Control Valve Sizing

    Thank you very much.
  4. neroverdi41

    Axial Control Valve Sizing

    Thank you for your opinion and help. I am lucky to be able to consult people like you.
  5. neroverdi41

    Axial Control Valve Sizing

    What about a multipath cage design and a shrinking cage design?
  6. neroverdi41

    Axial Control Valve Sizing

    Thank you for your opinion and help. I am lucky to be able to consult people like you.
  7. neroverdi41

    Axial Control Valve Sizing

    I did an analysis under minimum conditions. I gave 82 bar to the inlet and 36 bar to the outlet and opened the valve to 20%. Cv 11 and automatically calculated the flow rate as 2600 m3/h. When I gave 82 bar to the inlet and 10,000 sm3/h flow rate to the outlet, the Cv value I obtained was 36.5...
  8. neroverdi41

    Axial Control Valve Sizing

    Unfortunately, the customer wants one size valve.
  9. neroverdi41

    Axial Control Valve Sizing

    I have never analyzed under minimum conditions. normally maximum conditions: 37-36 bar and 100000 sm3/h flow but when I define the inlet-outlet pressure in the program, it automatically calculates the flow rate and calculates 10000 sm3/h. for your information.
  10. neroverdi41

    Control Valve CFD Analysis

    I have never taken the minimum as a basis until now because my aim is to see the rated Cv value. for this reason, either by giving the inlet-outlet and seeing the flow rate or by giving the inlet pressure-outlet flow rate and seeing how much pressure drop the cage provides. I was not sure which...
  11. neroverdi41

    Control Valve CFD Analysis

    this is a continuation of my other work, you think right. but I'm not sure how to give the flow rate. this is the first time I'm hearing from you. what I can't understand is, from 37-36 bar pressure, should I get a maximum flow rate of 100,000 sm3/h to pass through? or should I get 36 bar...
  12. neroverdi41

    Axial Control Valve Sizing

    at first I chose 10“ but due to the deadline we had a 12” valve ready. that's why I chose it. they want the speed especially low. then I thought I would lower the cv value with the cage design. that's why I asked about CFD in another topic.
  13. neroverdi41

    Control Valve CFD Analysis

    I want the valve to provide the maximum flow rate by entering the specified inlet and outlet pressures. at worst I want it to be close to the maximum flow rate.
  14. neroverdi41

    Control Valve CFD Analysis

    When I give it as volumetric inlet and pressure output, the inlet pressure starts to rise to very utopian values and it gets ridiculous. for this reason, I give pressure to the inlet and flow rate to the outlet, which is correct according to both formulas. my understanding; when I give inlet and...
  15. neroverdi41

    Axial Control Valve Sizing

    the customer asked for a maximum flow rate of 20 m/sec. he said that was important for him. how did you calculate the speed?
  16. neroverdi41

    Control Valve CFD Analysis

    Hello; the parameters required from a control valve are inlet and outlet pressures, flow rate and temperature. when analyzing I can only specify 2 boundary conditions: either inlet pressure+flow rate or inlet pressure+outlet pressure. which one is more correct? because I cannot give flow rate...
  17. neroverdi41

    Axial Control Valve Sizing

    As a result of my analysis, when I gave 37-36, ie dp=1 to the inlet and outlet, the flow rate of the valve was 10000. the desired flow range is 10000-100000 sm3/h. of course, I determined the minimum and maximum conditions by myself. would it be too big? can't I control it with a cage?
  18. neroverdi41

    Axial Control Valve Sizing

    My maximum conditions are as follows: pipeline=16” p1=37 bar p2=36 bar Q=100000 sm3/h T=15 C Vmax=20 m/sec I chose 2 lower ones as an estimate. The rated cv value of my 12” c600 axial valve is 1550. The Cv value I calculated is about 500. there is a big difference. Do you think this valve is...
  19. neroverdi41

    Axial Control Valve Sizing

    I work for a supplier but why not use the fisher calculator? I don't understand. there are a lot of cv calculators on the internet and the fisher handbook has all the information on the internet about valve sizing.
  20. neroverdi41

    Axial Control Valve Sizing

    my friend, the information has been updated. Pipeline=16” p1=82-36 bar p2=66-36 bar Q=10,000-100,000 sm3/h T=15 C Vmax=20 m/sec the important thing for them is to ensure the necessary flow. when I calculate it in the sizing calculator on the fisher site, the Cv is too small. My understanding...

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