Leakage from the discharge back to the inlet on a blower is referred to as:

Leakage from the discharge back to the inlet on a blower is referred to as "slip." This term describes the phenomenon where some of the air or gas that has been discharged by the blower leaks back to the inlet instead of being directed to the intended outlet. Slip is typically measured as a percentage and indicates the inefficiency of the blower's operation, as it reflects the amount of air that does not contribute to the system's performance.

Understanding slip is crucial for evaluating the effectiveness of a blower system because high slip values can result in decreased performance, increased energy consumption, and potentially excessive wear on the components. By identifying and addressing slip, millwrights can optimize blower operations, improving both efficiency and system reliability.