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ROTARY UNION ® transfers media (water, steam, air, oil, hydraulic fluid, etc) from a stationary source to rotating machinery, such as a drum or an indexing table. They are used in process industries such as; paper, printing, rubber and plastics, textile and chemical. Rotary Unions are also used on cranes, machine tools and many other applications. Duff-Norton Rotary Unions are used to provide heating or cooling media like steam, hot oil, water or coolant to control the surface temperature of a drum or roll, to transfer air or hydraulic fluid to moving components or to add fluids to mixers while in motion. Rotary unions, rotary joints and rotating joints ranging up to 750 psi and up to 5,000 RPM are available.

Water, Air Hydraulic Fluid

10, 150 PSI


248º F

100 RPM

1/4" to 3" NPT

Nickel Plated Steel

*See performance charts for details

Features & Benefits
Hydraulic Applications - High pressure swivel for use in hydraulic and pneumatic applications
High Pressure - Designed for use in very high pressure applications up to 10,150 PSI
Corrosion Resistant - Standard Models feature nickel plated carbon steel construction. Also available in all stainless steel