water rotary union / for air / for oil / for vacuum
1800 SR series

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water rotary union / for air / for oil / for vacuum water rotary union / for air / for oil / for vacuum - 1800 SR series


  • Medium:

    for water, for air, for oil, for vacuum, for chemicals

  • Applications:

    hydraulic, high-pressure, low-pressure, pneumatic, for transfer, medium-pressure, for pipes, for rollers

  • Material:

    stainless steel, carbon steel

  • Other characteristics:

    screw-in, with seal, ball bearing, low-speed, orientable, large

  • Pressure:

    Min.: 0 bar (0 psi)

    Max.: 350 bar (5,076 psi)

  • Rotational speed:

    Min.: 0 rpm (0 rad.min-1)

    Max.: 1,500 rpm (9,425 rad.min-1)

  • Nominal size:

    Min.: 0.25 in

    Max.: 3 in


Rotary unions are electronic tools allowing single or multiple liquids to be conveyed from a stationary to a rotary part guaranteeing a completely productive lock between the two pieces. There is a wide range of rotary union for satisfying the customers requirements and they are able to handle multiple fluids side-by-side at various pressures and temperatures.

Duff-Norton Europe rotary unions can lift the fluids from 0 to 700 bar and up to 1500 bar for specific items. It also allows oscillatory or circular movements of about 5000 rpm whereas the rotary couplings allow conveying of fluids during the set-up needing a greater throughput (up to 12-inches).

Additionally, the rotary unions are available in chemical nickel-processes steel (wear resistant treatment), stainless steel or other materials as per your requirements.

Other Duff-Norton products

Rotary unions