Description
The Anti-Suckback Valve Disc acts as a barrier. It is designed to close at the right moment, blocking any reverse oil flow. This simple action protects the entire vacuum process from contamination and helps maintain the correct oil level inside the pump for the next start-up.
Replacing this disc is a common part of regular pump maintenance. If you notice minor oil migration or are performing routine service, swapping out this disc helps ensure continued reliable performance.

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