Abstract: A valve assembly monitoring system receives operational data that is representative of one or more parameters of a valve assembly's operation and that is collected by the valve assembly during normal operation. The valve assembly monitoring system is configured to identify, based on the operational data, a change in valve travel setpoint that indicates a start of a valve transition and a subsequent change in valve travel that indicates an end of the valve transition. Based on the identified start and end of the valve transition, the valve assembly monitoring system is configured to generate a valve transition time and to compare the generated transition time to transition time limits of the valve assembly to alert maintenance personnel to problematic increases in transition time.

Abstract: A pin may be arranged in a hole located on an outer diameter surface of a cylinder of a rotary die cutting arrangement. The pin proximal end may be received in the hole and the pin distal end may project from an outer surface of the cylinder. The pin proximal end has a boss. The pin has a longitudinal slit extending from the proximal end toward the distal end. The slit has a width and length dimensioned to provide the proximal end with sufficient resiliency to allow the proximal end to be compressed to a position where the boss of the pin proximal end has a diameter less than the diameter of the hole to allow the boss to pass through the hole, and release to a position where the diameter of the boss is greater than the hole diameter to retain the pin in the hole.