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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.
General Purpose

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DWA Series
DWA Series
300 Series
300 Series
600 Series
600 Series
5000 Series
5000 Series
Stainless Steel
9000 Series
9000 Series


Steam & Hot Oil

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2000 Series
2000 Series
Shock & Vibration Resistant
8000 Series
8000 Series
9000G Series
9000G Series
High Temperature


Multi-Port

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HPMC/HSMC Series
HPMC/HSMC Series
1600 Series
1600 Series
Two Port
1650 Series
1650 Series
Two Port


Swivels

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1100 Series
1100 Series
Slow Rotation


1102 Series
1102 Series
Slow Rotation
1200 Series
1200 Series
Small Envelope
1300 Series
1300 Series
Flanged
1700 Series
1700 Series
High Pressure
1900 Series
1900 Series
High Pressure