DSTI SEM-1181 Rotary Union

The SEM-1181 rotary union from DSTI supports eight independent fluid passages, designed for high-pressure rotary systems with moderate space constraints. Its G1/8"-28 BSPP connections provide compatibility with global hydraulic standards, while the 9.525 mm through bore enables shaft or wiring integration in motion-critical applications. With a body diameter of 74.6 mm and extended length of 186.944 mm, this model balances flow capacity, performance, and mechanical stability, operating up to 7500 PSI and 300 rpm.

Technical Specifications
Model #	Connection	Passage Size	Diameter	Length	Through Bore	Minimum Torque
SEM-1181	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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