Description
This felt ring works like a filter. It helps catch dust and dirt before they can get inside the pump. It also helps control the flow of oil in certain areas. By doing this, it protects the moving parts from wear and tear .
This felt ring fits many popular Pfeiffer pump models. It works with the DUO 1.6, DUO 2.5, DUO 3, and UNO 6 pumps . It also fits larger models like the DUO 6 and DUO 11 pumps .
Felt rings do not last forever. Over time, they can get clogged with dirt or lose their shape. If you are already opening up your pump for service, replacing the felt ring is a smart move. It is a small part that helps extend the life of your pump.

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