water rotary union / for air / for oil / for vacuum
HVH 6 DSTI - Dynamic Sealing Technologies



  • Medium:

    for water, for air, for oil, for vacuum, for gas

  • Number of passages:


  • Material:

    carbon steel

  • Other characteristics:

    for high flow rates

  • Pressure:

    Max.: 345 bar (5,004 psi)

    Min.: 0 bar (0 psi)

  • Rotational speed:

    Min.: 0 rpm (0 rad.min-1)

    Max.: 50 rpm (314 rad.min-1)


DSTI 6-passage, high-flow HVH Series rotary unions are suitable for vacuum & bidirectional pressures up to 5000 PSI [345 BAR] and feature six independent flow passages.

HVH 6-passage models consist of a heavy-duty alloy steel construction and protected ball bearings ideal for harsh, rugged outdoor applications such as heavy forestry and construction equipment.

Need to combine fluid with electrical power, signal and/or data transfer? No problem. The HVH Series rotary unions are designed to integrate directly with our standard electrical slip rings.