Approx. calculation of valve I.D (for Liquid)
Formula for calculating of valve bore dia

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d = Bore dia of the valve (mm)
v = Velocity of the flow/flow rate in u/s for water
= (0.5 to 1.00 m/s for sucton side)
= (1.0 to 3.0 m/s for pressure side)
Q1 = Flow rate in M³/hr
Q2 = Flow rate in L/s
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