Rotary Unions SE Series

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SE Series 12-Passage Rotary Unions & Joints

Maximum Pressure

7,500 PSI [515 BAR]

Max. Pressure	Series
200 PSI [15 BAR]	SPS LT SE GP GPS SCS HVH HPS
600 PSI [40 BAR]	SPS LT SE GP GPS HVH HPS
5,000 PSI [345 BAR]	SE GP GPS HVH HPS
7,500 PSI [515 BAR]	SE GP GPS HPS
20,000 PSI [1,375 BAR]	HPS
Other	Custom

Maximum Speed

300 RPM

See Other Speed Options

Max. Speed	Series
20 RPM	SPS LT SE GP GPS SCS HVH HPS
50 RPM	SPS LT SE GP GPS SCS HPS
75 RPM	SPS LT SE GP GPS SCS
300 RPM	SPS LT SE GP GPS SCS
500 RPM	SPS LT GP GPS SCS
Other	Custom

Connection Type

SAE-ORB
BSPP

See Other Connection Options

Connection Type	Series
ASME-BPE	SCS
BSPP	SE GP
BSPT	LT
NPT	SPS LT GP GPS
SAE-ORB	SE HVH
Medium Pressure	HPS
Other	Custom

Suitable Media*

Air/Gas
Coolant
Oil/Hydraulic
Water/Glycol

See Other Media Options

Suitable Media	Series
Air/Gas	SPS LT SE GP GPS SCS HVH HPS
Chemical	GPS SCS HPS
Coolant	SE GP GPS SCS HPS
DI/Tap Water	GPS SCS HPS
Food-Grade	SCS
Oil/Hydraulic	SE GP GPS SCS HVH HPS
Steam	Custom
Water/Glycol	SE GP GPS SCS HPS
Other	Custom

*Suitable Water/Glycol or Coolant media must have rust inhibitors present. Oil/Hydraulic media must be petroleum-based. Please consult with DSTI for approval.

DSTI 12-passage SE Series rotary unions are designed for applications with high pressure requirements and tight spatial constraints and feature 12 independent flow passages.

SE 12-passage models come standard with threaded connections on the sides of the shaft and housing. Models are also available with optional shaft O-ring glands for face/flush mounting (which must be specified when ordering).

Need to combine fluid with electrical power, signal and/or data transfer? No problem. The SE Series rotary unions are designed to integrate directly with our standard electrical slip rings. See options.

Pressure vs. Torque Data Pressure vs. Speed Data

See Purchase Options

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Configurations

Part #	Connection	Passage Size	Diameter	Length	Through Bore	Min. Torque*	Part Downloads	Information
SE-11121 [SEM-11121]	#4 SAE-ORB [G1/8"-28 BSPP]	0.187" [4.75 mm]	3.437" [87.3 mm]	10.000" [254.001 mm]	0.375" [9.525 mm]	133 in-lbs [15.03 Nm]	View Downloads PDF Catalog PDF Drawing DWG [2D] STEP [3D] Installation & Mounting	Buy Now

*Minimum torque required to rotate based on zero pressure with Oil/Hydraulic media (or Air/Gas media for SPS Series). Required torque to rotate may be greater when using other media types or dry running. For specific torque requirements, please contact DSTI to discuss your application.

Technical Specifications

Maximum Pressure 7,500 PSI [515 BAR]

Maximum Speed 300 RPM

Maximum Vacuum 30 HG

Temperature Range 0° F to 220° F [-18° C to 105° C]

Suitable Media* Air/Gas, Coolant, Oil/Hydraulic, Water/Glycol

Connection Type SAE-ORB, BSPP

SE Series Rotary Unions - Housing Material

Housing: Material (Plating/Coating) Carbon Steel (Black Oxide)

SE Series Rotary Unions - Shaft Material

Shaft: Material (Plating/Coating) Carbon Steel (Black Oxide)

SE Series Rotary Unions - Shaft Flange Mount

Optional Interface Mounting Shaft Flange Mount

SE Series Rotary Unions - Housing Flange Mount

Optional Interface Mounting Housing Flange Mount

Shaft Connection Options Radial & Axial Connections

1Standard, Radial SAE-ORB or BSPP Connections (Plugged if Axial Connection Type is Ordered)
2Optional, Axial O-Ring Face Seal Connections (Must Specify At Time Of Order)
3Threaded Mounting Holes

*Suitable Water/Glycol or Coolant media must have rust inhibitors present. Oil/Hydraulic media must be petroleum-based. Please consult with DSTI for approval. All values listed under Technical Specifications are dependent on a combination of all application parameters. Please note operational life is dependent upon both rotational speed and duty cycle. Contact DSTI if your application requires operating close to the maximum rotational speed with a continuous duty cycle. Applications with temperatures above 220° F (105° C) require alternative seal materials. The use of Water media with temperatures above 212° F (100° C) require alternative seal materials. Please consult with DSTI regarding your specific application requirements.