Rotary Unions HPS Series

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HPS Series 6-Passage Rotary Unions & Joints

Maximum Pressure

20,000 PSI [1,375 BAR]

Max. Pressure	Series
200 PSI [15 BAR]	SPS LT SE GP GPS SCS HVH HPS
600 PSI [40 BAR]	SPS LT SE GP GPS HVH HPS
5,000 PSI [345 BAR]	SE GP GPS HVH HPS
7,500 PSI [515 BAR]	SE GP GPS HPS
20,000 PSI [1,375 BAR]	HPS
Other	Custom

Maximum Speed

50 RPM

See Other Speed Options

Max. Speed	Series
20 RPM	SPS LT SE GP GPS SCS HVH HPS
50 RPM	SPS LT SE GP GPS SCS HPS
75 RPM	SPS LT SE GP GPS SCS
300 RPM	SPS LT SE GP GPS SCS
500 RPM	SPS LT GP GPS SCS
Other	Custom

Connection Type

Medium Pressure

See Other Connection Options

Connection Type	Series
ASME-BPE	SCS
BSPP	SE GP
BSPT	LT
NPT	SPS LT GP GPS
SAE-ORB	SE HVH
Medium Pressure	HPS
Other	Custom

Suitable Media

Oil/Hydraulic
Water/Glycol

See Other Media Options

Suitable Media	Series
Air/Gas	SPS LT SE GP GPS SCS HVH HPS
Chemical	GPS SCS HPS
Coolant	SE GP GPS SCS HPS
DI/Tap Water	GPS SCS HPS
Food-Grade	SCS
Oil/Hydraulic	SE GP GPS SCS HVH HPS
Steam	Custom
Water/Glycol	SE GP GPS SCS HPS
Other	Custom

DSTI 6-passage HPS Series rotary unions feature a specialized sealing system capable of handling pressures up to 20,000 PSI [1,375 BAR] and six independent flow passages.

HPS 6-passage models feature standard medium pressure housing connections, O-ring gland shaft connections, and an all-stainless steel construction for harsh marine and offshore environments.

If needed, DSTI can make modifications to meet application-specific requirements including changes to the HPS Series mounting configuration, connections, sealing system, and housing or shaft dimensions. See options.

Pressure vs. Speed Data

Downloads
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HPS Series Catalog HPS Series Installation & Mounting

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Configurations

Part #	Connection	Passage Size	Diameter	Length	Through Bore	Min. Torque*	Part Downloads	Information
HPS-4360 [HPSM-4360]	3/8" OD, 9/16"-18 UNF Medium Pressure []	0.203" [5.156 mm]	4.688" [119.075 mm]	12.130" [308.103 mm]	None	44 ft-lbs [59.66 Nm]	View Downloads PDF Catalog PDF Drawing DWG [2D] STEP [3D] Installation & Mounting	Get Quote

*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 20,000 PSI [1,375 BAR]

Maximum Speed 50 RPM

Maximum Vacuum N/A

Temperature Range 0° F to 220° F [-18° C to 105° C]

Suitable Media Oil/Hydraulic, Water/Glycol

Connection Type Medium Pressure

HPS Series Rotary Unions - Housing Material

Housing: Material (Plating/Coating) Stainless Steel

HPS Series Rotary Unions - Shaft Material

Shaft: Material (Plating/Coating) Stainless Steel (TDC)

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.