Rotary Unions SPS Series
SPS Series 1-Passage Rotary Unions & Joints
![Max. Pressure: 600 PSI [40 BAR]](../../../images/content/main/product_icon_tag_check.svg){kind=icon}
600 PSI [40 BAR]The SPS Series single passage rotary unions are compact, lightweight and corrosion-resistant featuring a
stainless steel shaft and hardcoat anodized aluminum housing. All models come standard with a male NPT
threaded shaft connection, a female NPT threaded housing connection and two tapped holes on the end of
housing for easy equipment integration.
The shaft, housing, seal material, and design makes this an
excellent solution when transferring air/gas (under pressure or vacuum) from a stationary source to a
rotating component.
Need to combine air/gas with electrical power, signal and/or data transfer? No
problem. The SPS Series rotary unions are designed to integrate directly with our standard thru-bore
electrical slip rings. See options.
Configurations
| Part # | Connection | Passage Size | Diameter | Length | Through Bore | Min. Torque* | Part Downloads | Information |
|---|---|---|---|---|---|---|---|---|
| SPS-5210 | 1/4"-18 NPT | 0.250" [6.35 mm] | 1.500" [38.1 mm] | 2.380" [60.452 mm] | None | 1 in-lbs [0.11 Nm] | Buy Now | |
| SPS-5410 | 1/2"-14 NPT | 0.500" [12.7 mm] | 1.750" [44.45 mm] | 2.630" [66.802 mm] | None | 2 in-lbs [0.23 Nm] | Buy Now | |
| SPS-5610 | 1"-11.5 NPT | 1.000" [25.4 mm] | 2.750" [69.85 mm] | 3.130" [79.502 mm] | None | 3 in-lbs [0.34 Nm] | Buy Now | |
| SPS-5910 | 2"-11.5 NPT | 2.000" [50.8 mm] | 3.940" [100.076 mm] | 3.690" [93.726 mm] | None | 4 in-lbs [0.45 Nm] | 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
600 PSI [40 BAR]
Maximum Speed
500 RPM
Maximum Vacuum
30 HG
Temperature Range
0° F to 220° F [-18° C to 105° C]
Suitable Media
Air/Gas
Connection Type
NPT
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.
Available Options
Custom Modifications
Easier and less expensive than you may think. We can modify our standard products to fit your project requirements.
Learn More
Electrical Slip Ring Integration
Get the complete package. With the purchase of a shaft extension, the SPS Series will integrate with our electrical slip rings for power, signal and data transfer.
View Options
