What fraction of the available pressure at the motor is commonly used to determine if the motor will perform properly?

Determining the appropriate fraction of available pressure to assess motor performance is crucial in pneumatic systems. Using two-thirds of the available pressure provides a solid margin for ensuring that the motor operates effectively under various load conditions. This fraction is significant because it typically accommodates potential pressure losses in the system and allows for variation in performance due to changes in the load or environmental conditions.

Utilizing a higher fraction than two-thirds may not leave enough pressure available for the operation of other components in the system, leading to suboptimal performance. Conversely, a lower fraction could indicate that the motor may not have sufficient power to handle its designated tasks efficiently. Therefore, relying on two-thirds of the available pressure strikes a balance between maintaining motor performance and ensuring that the pneumatic system operates cohesively as a whole.