Description
Rietschle pumps have a lot of spots where parts come together. This copper ring gasket, part number 704563, goes in one of those spots to make sure nothing leaks.
It is a small, flat ring made from pure copper. When you tighten the bolts, the copper gets squeezed a little and fills every tiny gap. That creates a perfect seal that lasts.
A fresh one can fix it fast. Keeping a couple extras on hand is a good habit. These pumps run hard, and small parts like this keep them going strong for a long time.

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