Rotating Joint

Definition - What does Rotating Joint mean?

A Rotating Joint, also known as a rotary union or rotary joint, is an intersection between a stationary part and a rotating part. This joint allows the rotation of the united parts and provides a seal between the stationary part and the rotating part to allow the flow of fluid between the stationary part and rotating part without any leakage of fluid.

Petropedia explains Rotating Joint

Rotating joints lock onto an input valve and are designed to rotate around an axis. The rotating joint acts as a link between a stationary part such as, a pipe or tubing and a rotating part such as, a drum, cylinder or spindle and allows the rotation of the united parts. It provides the sealing of the fluid passing through the stationary part and the rotating part. Rotating joints are used in various industries including chemical, petrochemical and oil and gas industries to transfer fluids such as steam, thermal oil, hydraulic fluids, water, etc., between stationary parts and rotating parts. A rotating joint contains four main components, i.e., shaft, housing unit, bearings and a seal.

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