A Rotating Union is a precision mechanical device used to transfer fluid from a stationary source, such as a supply pipe, into a rotating piece of machinery. (read more)

The Union Insert Valve (UV) is designed to insert into 45° ground joint unions. It provides a simple and economical way to install a check valve into a system. This valve is member of the Check-All Insert series and is available in sizes ranging from 1/2" up to 2". Be sure to contact us for any questions you may have for your application needs. (read more)

The RX rotary union for water and thermal oil applications connects stationary piping to a rotating device, and is the only rotary union available with a seal isolation barrier to protect bearings and extend operating life. Other features include a stainless steel rotor and a tungsten carbide counterseat. (read more)

Rotary Systems' new line of work-holding unions are available in two, four and six passage models. These unions are designed with #4 SAE threads on both the radial and axial locations on the shaft and in the housing. These unions are a direct retro-fit to other work-holding and clamping suppliers that provide these unions in their fixtures. (read more)

SE Series 2 Passage P/N 1121 - Rotary Unions With SAE-4 Connections - from Dynamic Sealing.

The SE Series 2 passage rotary unions are suitable for hydraulic, coolant, pneumatic and vacuum applications. All SE series unions are designed with both o-ring face and female SAE-4 connections on the shaft for increased mounting flexibility. (read more)

DSTI offers custom multi-passage rotary unions for food grade rotary filling equipment. Rotary unions are available for new projects as well as direct replacements for OEM designs. DSTI rotary filling equipment rotary unions feature stainless steel construction, with food grade seals & internal passageways designed for CIP. (read more)

Rotating unions at impresive scale for the steel industry. Industry leader in custom rotating unions for all your rotary applications. (read more)

The SE Series rotary unions are designed for machine tool workholding automation applications. The SE Series rotary unions are suitable for hydraulic, coolant, pneumatic and vacuum applications. All SE series unions are designed with both o-ring face and female SAE-4 connections on the shaft for increased mounting flexibility. (read more)

Rotary Systems is capable of integrating a slip ring into our standard product line of rotary unions as shown in the picture. The slip rings are designed into our unions to allow for continuous 360 degree rotation of electrical power, signal and data transfer. Multiple circuits and power capacities are available upon request. (read more)

Looking for that out of the ordinary rotary union for hydraulic pressure? Scott Rotary Seals has been in the business of custom design rotary unions for nearly 50 years. We can design to our customer's requirements. Whether you are looking for high pressure, multiple size ports, hollow bore or standard off the shelf unions we have or can make what you are looking for. (read more)