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What is torque?Torque is a force tending to rotate a body about an axis.(Example): force on a wrench tending to rotate a nut around a bolt.&...

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Are you looking for a calculation of the torque needed to close the valve? Or are you concerned about what the valve disc position ultimately will be...

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Ball Valve Torque Calculation. Standard ball valves are known as quarter-turn valves. The valve stem rotates a metal ball with a hole drilled in it ...

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Wen Jian Ge Shi :PDF/Adobe Acrobat-HTML Ban ACTUATOR SIZING FLOATING BALL VALVES For the torque value required to turn a floating ball valve through its 90° travel, consider torque requirements at ...

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Ball Valve Torque Calculation Torque The rotation of the ball requires a certain turning moment, or torque, which depends upon factors such as pressure ...

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Wen Jian Ge Shi :PDF/Adobe Acrobat-HTML Ban A 11/10 Page 1 of 17 Ball Valve Torques and Actuator Selection ...Infrequent operation will require higher torque values than for valves in ...

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MAST is maximum allowable torque a stem of a quarter turn valve can be subjected to without mechanical failure. Engineering unit Nm OR lb-in

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Can any provide the reference international standard applicable for ball valve torque calculation and actuator selection?

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