SEM-1121 2-Passage Rotary Joint - DSTI

DSTI SEM-1121 Rotary Union

DSTI’s SEM-1121 rotary union offers compact dual-channel fluid transfer for low-complexity rotary platforms. With G1/8"-28 BSPP connections and a modest through bore of 9.525 mm, it's tailored for applications needing limited fluid paths but reliable performance under demanding conditions. Its small profile (74.6 mm diameter and 90.475 mm length) combined with a low minimum torque of 2.6 Nm makes it ideal for tight mechanical enclosures where space and precision matter.

Technical Specifications
Model #	Connection	Passage Size	Diameter	Length	Through Bore	Minimum Torque
SEM-1121	G1/8"-28 BSPP	4.75 mm	74.6 mm	90.475 mm	9.525 mm	2.6 Nm
- Number of Ports: 2 - 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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