SE Series - Rotary Unions

By: Dynamic Sealing Technologies  06-Dec-2011
Keywords: Slip Ring, Mounting Flange, Rotary Unions,

The SE Series rotary unions / rotating joints are designed for applications with high pressure requirements and limited space. All SE series unions offer SAE-4 and o-ring flange connections. Originally designed for machine tool work holding applications, these versatile unions are currently used in a number of industries. The SE Series rotary unions / rotating joints are available in 2, 4, 6, 8, 12, 16 & 24 passage versions and incorporate DSTI’s exclusive DynaSeal™ seals, which are suitable for vacuum & bidirectional pressures up to 7500 psi.

part # # of passages thru bore overall diameter overall length min torque* passage size slip ring option link
SE-1121 2 0.375 2.937 3.562 15 0.187
SE-1141 4 0.375 2.937 4.828 30 0.187
SE-1161 6 0.375 2.937 6.094 40 0.187
SE-1181 8 0.375 2.937 7.360 45 0.187
SE-11121 12 0.375 3.437 10.000 80 0.187
SE-11161 16 0.375 4.437 13.700 20 0.187
SE-11241 24 0.375 4.437 21.970 40 0.187

All dimensions are shown in inches.

*This is the minimum torque required to rotate based on zero pressure measured in inch-pounds

Max. Pressure 7500 PSI (515 BAR)
Max. Vacuum 30 HG
Max. Rotational Speed up to 300 RPM
Max. Temperature 350 degrees F (176 C)
Connection Sizes SAE-4. Other sizes available upon request.
Plating and Coatings 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 Options

Keywords: Mounting Flange, Rotary Unions, Slip Ring,

Contact Dynamic Sealing Technologies


Print this page

Other products and services from Dynamic Sealing Technologies


Rotary Unions, Swivel Joints, Rotating Couplings - Products

DSTI offers a wide range of stock rotary union lines and options for a variety of standard applications as well as complete specialized rotary union design and manufacturing services. In-line Flow for Min Pressure Drop.


SPS Single Passage Rotary Union

The single passage SPS Series rotary unions are small, lightweight and corrosion-resistant featuring aluminum construction with a stainless steel shaft. For integrating a single fluid passage with power, signal and data transfer.


LT Series Rotary Unions | DSTI

The LT Series rotary unions / rotating joints feature all-aluminum construction and low-torque seals that are suitable for pressure or vacuum use. Available Aluminum flange can be bolted onto the end of the housing assembly for optional electrical slip ring mounting. The LT Series rotary unions / rotating joints are small and lightweight available in 2, 4, 8 & 12 passage versions.


LT 12 Passage Rotary Union

When equipped with one of the many electrical slip ring options, the 12 passage LT Series rotary union products offer an economical solution for a number of complex automation requirements. The 12 passage LT Series rotary unions provide independent passages for air, vacuum and fluid transfer.