Updated: Thursday the 06^th of November, 2008 Deublin Ltd

Since 1945, Deublin has grown from a small garage shop to the world's largest manufacturer of rotating unions.  Our worldwide distribution network allows OEM's all over the world to specify Deublin unions when purchasing equipment made in another country. 

Wherever you're located, Deublin has a stocking distributor nearby to meet your requirements - quickly.

Rotating unions must accommodate a broad range of materials, viscosities, temperatures, pressures and speeds.  That's why the Deublin product line offers over:

• 500 standard unions

• 3,000 separate models

• more than 6,000 individual components to handle them

Rotating Unions

A Rotating Union is a precision mechanical device used to convey fluid from a stationary source into rotating machinery.  A typical rotating union features:

• Deep groove ball bearings to support the rotating component (attached to the machinery) against the stationary component (attached to the stationary supply source).

• End face balanced mechanical seal to seal the media passing through.

Rotating Unions are used in certain 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 and Paper Machine Calender stacks. 

Our product line also includes Steam Joints and Siphon Systems for Paper Machine Dryer Cans.

The 1154 Series Rotary Union features patent pending "AutoSense" technology that automatically changes between closed seals and controlled leakage in response to the media ... coolant, MQL or air. The non-rotating element has a long stroke to track drawbar movement even when the union is mounted on a clamping device. Balanced mechanical seals made from silicon carbide offer long service life.