DSTI SEM-1181-OF Rotary Union

DSTI’s SEM-1181-OF rotary union enables high-pressure eight-channel fluid transfer with through bore functionality for shaft integration or sensor routing. With G1/8"-28 BSPP threaded ports and a central 9.525 mm bore, this model is ideal for dynamic hydraulic and pneumatic setups requiring compact form and reliable performance. Its body dimensions (74.6 mm diameter, 186.944 mm length) and minimum torque rating of 7.91 Nm allow stable rotation at 300 rpm and pressures up to 7500 PSI, even in demanding industrial environments.

Technical Specifications
Model #	Connection	Passage Size	Diameter	Length	Through Bore	Minimum Torque
SEM-1181-OF	G1/8"-28 BSPP	4.75 mm	74.6 mm	186.944 mm	9.525 mm	7.91 Nm
- Number of Ports: 8 - Maximum Pressure: 7500 PSI [515 BAR] - Maximum Speed: 300 rpm - Vacuum Rating: 30 HG - Operating Temperature: -18°C to 105°C [0°F to 220°F]
* Minimum torque required to rotate based on zero pressure with oil/hydraulic media. Required torque may be greater when using other media types or dry running.

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