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Old   November 25, 2009, 06:39
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I need to calculate the torque value using CFDesign in the ball valve.

Let i explain to you in detailed manner,
In ball valve it should not allow the fluid to pass through the other side when the ball shaft in the valve is in closed condition.From close to open of the ball stem how much torque needs to apply on the shaft to rotate the ball that has to be calculate through the CFdesign software.
The inlet pressure is 90 psig and flow rate is 17.2 gpm.

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