water rotary union / for oil / 12-passage / hydraulic
HPS 12 DSTI - Dynamic Sealing Technologies



  • Medium:

    for water, for oil

  • Number of passages:


  • Applications:

    hydraulic, high-pressure, for transfer, for heavy-duty applications, for offshore applications, for oil industry applications, for the gas industry, drillship, maritime industry

  • Material:

    stainless steel

  • Pressure:

    Max.: 1,375 bar (19,943 psi)

    Min.: 0 bar (0 psi)

  • Rotational speed:

    Max.: 50 rpm (314 rad.min-1)

    Min.: 0 rpm (0 rad.min-1)


DSTI 12-passage HPS Series rotary unions feature a specialized sealing system capable of handling pressures up to 20,000 PSI [1,375 BAR] and 12 independent flow passages.

HPS 12-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.