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  1. HANYWEPCO

    Flow direction with balanced trim??

    Mr.Ehzin, Can you please provide me the video of how they control the location of cavitation collapse with the cavitation trims.
  2. HANYWEPCO

    DP used for liquid valve sizing

    When we make sizing for liquid flow in a control valve , we first check DP allowable and compare it by our maximum DP , if our maximum DP is greater than allowable DP ,we use DP allowable for sizing,Why?
  3. HANYWEPCO

    Flow direction with balanced trim??

    Please I have the following items, appreciate if you can clarify to me: 1- For balanced trim , logically the flow should be up so that we can use smaller actuator to close the valve, but for some valves the flow is down while using balanced trim, Why? 2- What the criteria for flow up or flow...

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