SE 8 Passage Rotary Union

The SE Series 8 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. The 8 passage SE products are commonly used to supply hydraulic fluid to workholding fixtures for machine tool applications.

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part #	thru bore	overall diameter	overall length	min torque*	passage size	slip ring option	download
SE-1181	0.375	2.937	7.360	90	0.187		PDF CAD

All dimensions are shown in inches. Click here to convert to Metric

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

Max. Pressure¹	7500 PSI (515 BAR)
Max. Vacuum¹	30 HG
Max. Rotational Speed¹	up to 300 RPM
Max. Temperature¹	350° F (176° C)²

¹Values are dependent on application parameters. Please consult with DSTI.
²High temperature applications may require alternative seal materials. Please consult with DSTI.

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	The SE Series unions are available with a number of RotaRing™ slip ring options for power, signal and data transfer. The assembly is available with an aluminum cover to protect the slip ring during use in demanding environments.
O-ring Face Seal Options	O-ring face seal options available for all SE Series models. Please add "-NP" to the part number. Example: SE-1121-NP

Note: O-ring face seal options are available for face-mounting a SE Series rotary union. Please add "-NP" to the part number --- Example: SE-1121-NP. For questions, please consult DSTI.

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