SPS Single Passage Rotary Union
The single passage SPS Series rotary unions are small, lightweight and corrosion-resistant featuring aluminum construction with a stainless steel shaft.
The SPS Series rotary unions can be mounted in the bore of our EST electrical slip rings for integrating a
single fluid passage with power, signal and data transfer.
| part # | thru bore | overall diameter | overall length | min torque* | passage size | slip ring option | download |
|---|---|---|---|---|---|---|---|
| SPS-5110 | --- | 1.500 | 2.380 | 8 | 0.156 | ||
| SPS-5210 | --- | 1.500 | 2.380 | 8 | 0.250 | ||
| SPS-5310 | --- | 1.750 | 2.630 | 12 | 0.375 | ||
| SPS-5410 | --- | 1.750 | 2.630 | 12 | 0.500 | ||
| SPS-5510 | --- | 2.750 | 3.130 | 16 | 0.750 | ||
| SPS-5610 | --- | 2.750 | 3.130 | 16 | 1.000 |
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 | 200 PSI (15 BAR) |
| Max. Vacuum¹ | 30 HG |
| Max. Rotational Speed¹ | up to 100 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 | 1/8", 1/4", 3/8", 1/2", 3/4", 1" NPT. Other sizes available upon request. |
| Plating and Coatings | Shaft: 304 Stainless Steel Housing: Blue Anodize |
| Mounting Options | Tapped holes are provided on the housing with male NPT thread connection for shaft mounting. |
| Slip Ring Options | The SPS Series rotary unions can be mounted in the bore of our EST Slip Rings for integrating a single fluid passage with power, signal and data transfer. |









