Glossary

Rotary Union

A rotary union — also called a rotating joint — transfers fluid or gas from a stationary supply into a rotating shaft.

Common media

Water, steam, hydraulic oil, coolant, compressed air.

Construction

Mechanical-seal or packed-seal; single or multi-passage.

FAQs

Why does my rotary union leak?
Usually seal wear, contamination or wrong seal compound for the medium.

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