What is a Rotating Union?

A Rotating Union is a precision mechanical device used to transfer fluid from a stationary source, such as a supply pipe, into a rotating piece of machinery. A typical rotating union features:

• Ball bearings to support the rotating component (attached to the machinery) against the stationary component (attached to the stationary supply source)
• Mechanical seal to seal the media passing through the rotating union

Mechanical seal face materials and secondary seals will vary depending upon the fluid properties & operating conditions of the application. Likewise, bearing type, design, material & construction will also vary with application.

Rotating Unions are used in numerous manufacturing processes to cool, heat or transfer fluid (pneumatic or hydraulic) power.

Rotating Union applications include Air Clutches, Gear Boxes, Machine Tool Spindles, Textile Equipment, Rubber & Plastic Manufacturing Machinery, Steel Continuous Casting Machines, Paper Machine Calender stacks, Paper Machine Dryer Cans, etc.

Deublin Rotating Unions can be selected by the following categories: Air Unions Air-Hydraulic Unions Air-Hydraulic-Coolant Unions Brake Fluid Unions Coolant Unions Cutting Oil Unions General Purpose Unions Hot Oil Unions Hydraulic Oil Unions Steam Unions Vacuum Unions Water Unions High Pressure High Speed Unions
Rotating Unions are also known in the industry by the following terms: Rotary Unions Rotary Joints Rotating Joints Steam Joints Steam Fits Swivels Couplings Rotating Couplings Hydraulic Couplings Rotary Couplings Rotary Swivels Hydraulic Swivels Pneumatic Couplings Pneumatic Swivels

ROTATING UNION APPLICATION SUBMITTAL FORM
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