Dynamic Sealing Technologies Inc. - Rotating Unions Dynamic Sealing Techologies Inc. Dynamic Sealing Technologies
13829 Jay Street NW
Andover, MN 55304
PH: 763.786.3758
FAX: 763.786.9674
TOLL-FREE: 866.700.DSTI (3784)
SE Series 4 Passage P/N 1141
Rotary Unions With SAE-4 Connections

The SE Series 4 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. High quality DynaSeal™ seals used in all the SE Series products can be run “dry” and are suitable for low and high pressure use.

2 Port Rotary Unions

RotaRing™ union/electrical slip ring assemblies:

The SE Series unions are available with six or twelve circuit slip ring options for power, signal and data transfer. The RotaRing™ is available with an aluminum cover to protect the slip ring during use in demanding environments.

Standard Passage Sizes: SAE-4
(Other sizes available upon request)
Plating: Black Oxide
Materials: Carbon Steel
Mounting Options: Tapped holes are provided on both the housing and shaft for mounting the assembly.
Mounting Flange: Available Steel flange can be bolted onto the shaft end of the assembly for optional o-ring face mounting.
Slip Ring Cover: Aluminum bolt on cover seals and protects slip ring assembly. (add -C to part # to specify this option)
Product Assistance Links
View Models in 3D and 2D View Models in 3D & 2D
Download CAD Files Download CAD Files
View Dimensions View Dimensions
Request Information Request Information
Installation Guide Installation Guide

2 Port Rotary Union

Operating Parameters

Max. Pressure: 7500 psi* (510 Bar)
Max. Vacuum: 30 Hg*
Max. Rotational Speed: up to 300 RPM*
Max. Temperature: 350 deg F* (176 deg C)
Min. Required Torque: 30 in/lbs*

* Operating Parameter information should only be used as a general guideline. Please contact our Engineering Department to discuss your specific application.

Click on the View Dimensional info in the Product Links for Downloadable CAD files and more information about the products.