Busch Vane – Carbon Part# 722000122 – vacstellar

These vanes fit inside a spinning rotor. As the rotor turns, the vanes slide in and out. They press against the inside wall of the pump chamber.

This action is what traps air and creates the vacuum. Over time, these vanes wear down. Worn vanes can’t create a tight seal anymore. Replacing vanes is normal. It’s like changing the oil in your car. It is a standard part of pump maintenance.

These vanes fit inside a spinning rotor. As the rotor turns, the vanes slide in and out. They press against the inside wall of the pump chamber.

This action is what traps air and creates the vacuum. Over time, these vanes wear down. Worn vanes can’t create a tight seal anymore.