HPS Series Rotary Unions
The HPS Series rotary unions feature a high pressure design and all stainless steel construction suitable for use in marine / offshore environments. HPS Series rotary unions are available in 1, 3, 4, 8, & 12 passage models. Modified or specialized configurations are also available.
{ See Also Rotary Unions For Umbilical Hose Reels }
| part # | thru bore | overall diameter | overall length | min torque* | passage size | slip ring option | |
|---|---|---|---|---|---|---|---|
| HPS-4310 | --- | 3.437 | 5.010 | 30 | 0.203 | View Model | |
| HPS-4510 | --- | 4.437 | 5.010 | 30 | 0.438 | View Model | |
| HPS-4330 | --- | 4.437 | 7.530 | 60 | 0.203 | View Model | |
| HPS-4340 | --- | 4.437 | 8.780 | 70 | 0.203 | View Model | |
| HPS-4380 | --- | 4.437 | 14.630 | 150 | 0.203 | View Model | |
| HPS-43120 | --- | 4.437 | 21.030 | 250 | 0.203 | View Model |
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
Custom electrical slip ring options are available. Please contact DSTI for more information.
| Max. Pressure¹ | 20,000 PSI (1,375 BAR) |
| Max. Vacuum¹ | N/A – Not for use with vacuum |
| Max. Rotational Speed¹ | 50 RPM |
| Temperature Range¹ | 0° F to 220° F (-18° C to 105° C)² |
¹Values are dependent on a combination of all application parameters. Please consult with DSTI.
²Applications with temperatures above 220° F (105° C) require alternative seal materials. Please consult with DSTI.
| Connection Sizes | 3/8" tube - 9/16"-18 UNF, 3/4" tube - 3/4"-14 NPS. Other sizes available upon request. |
| Connection Type | Medium pressure housing connections. O-ring flange mount shaft connections. Optional threaded face connection (O-ring standard). |
| Plating and Coatings | Shaft/Housing: Stainless Steel |
| Mounting Options | The HPS series unions have a unique shaft configuration that consists of individual female tapped passages with an o-ring gland around each for optional flange mounting. There are also tapped holes on the end of the housing for mounting the assembly. |
| Slip Ring Options | Custom options available. Please contact DSTI. |
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