water rotary union / for air / for oil / for steam



  • Medium:

    for water, for air, for oil, for steam, for gas, for vacuum, for chemicals

  • Material:

    stainless steel, carbon steel

  • Other characteristics:

    with seal, flange, low-speed, orientable, large, for high flow rates

  • Pressure:

    Min.: 0 bar (0 psi)

    Max.: 16 bar (232 psi)

  • Rotational speed:

    Min.: 0 rpm (0 rad.min-1)

    Max.: 5 rpm (31 rad.min-1)

  • Nominal size:

    Min.: 2 in

    Max.: 10 in



The Duff-Norton Europe DNRF Rotary Union has been designed to provide a perfect solution to the need to position Flange connected pipes (loading arms). Its simple design in nickel plated carbon steel (against corrosion) or in 316L Stainless Steel allows to ensure its primarily rotating function in all conditions of weather and temperature.


– Food
– Chemistry, Plastic, Health
– Construction, Building, Wood, Habitat
– Energy, Environment
– Metallurgy, Mechanics and Subcontracting
– Trading
– Transport and Logistics

Other Duff-Norton products

Rotary unions