## calculating torque of ball valve casafloramieke.be

The torque requirement of a ball valve can be calculated from its breakaway torque and dynamic torque (Nesbitt, 2009) Breakaway torque : The turning moment required to move the ball from rest can be calculated from the formula Tb = A ( P) + B. P Where P = pressure drop across the valve and, 49 A and B are constants determined by the type and ...

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