The Kadant Blog

Rotary Joints & Unions

Custom Rotary Unions for Semi-conductors

A U.S. OEM designing and manufacturing semiconductor machinery required a two-passage rotary union that had to fit into a 3” (76 mm) space on one of its new machines.

Written by Frank Marsden on February 19, 2014.

What are Rotary Joints & Rotary Unions?

A rotary joint, also referred to as a rotary union or rotating union, is a rotary sealing device that connects rotating equipment to fixed piping for the transfer of steam, water, thermal oil, coolant, hydraulic oil, air, and other media.

Written by Frank Marsden on March 19, 2013.

The Causes of Flooding in Paper Dryers

The majority of flooding incidents can be attributed to steam and condensate system issues (poor equipment sizing, incorrect system set-points and incorrect system calibration) and mechanical issues (unreliable or incorrectly installed steam joints and syphons). In this discussion, we will focus on the steam system issues that contribute to flooding.

Written by Wayne O'Driscoll on January 07, 2014.

Recommended Rotary Joint & Rotary Union Piping

Flexible metal hose is used on the inlet and outlet connections of rotary joints and rotary unions to allow for the rotary joint movement and for thermal expansion of piping.

Written by Al Ives on December 11, 2012.

Privacy | Terms | Benefits Compliance