Torque‐calculatingq gLever Arm and torqueLever Arm and torque

Calculating valve torque relies on a few different variables. Theg qlength of your valve handle is very important when making this

calculation.

The longer your valve is, the greater potential torque andtherefore the easier it will be to turn the valvetherefore, the easier it will be to turn the valve.

Another variable when calculating valve torque is the amountg qof force you apply to the valve. In order to maximise valvetorque it is imperative that you apply this force perpendicular

h l i lfto the valve arm itself.

Measure the length (or radius) of yourvalve with your tape measurevalve with your tape measure

1) Distance d??1) Distance d??

Multiply this length by the amount of force you will be applyingforce you will be applying

perpendicularly to the valve on yourcalculator

k f i h d i hi hKeep track of units when doing this math.For example, if you are multiplying a valve of 

length 0.2 meters by a perpendicular forceof 50 newtons, your answer would be a torque of 10newtons, your answer would be a torque of 10 

newton meters.

If you apply a force to the valve that is not di l h h ill h hperpendicular then that will change the 

amount of torque. It then becomes lengthmultiplied by the sine of the angle at which you

are applying the forceare applying the force

1) Torque Ʈ??1) Torque Ʈ??

2éme méthode1) Distance d??