Product Disclaimer

The function of a rotating union is to separate the working media from the environment. Duff-Norton Rotary Union® brand of rotating unions are contacting seal type rotating unions and will allow leakage to some degree, as will all similarly designed and manufactured products. It is important to note the leakage of rotating unions will increase over time as the contacting seals wear. All persons specifying, installing and operating the rotating union must take note of this potential risk. The information in this catalog is supplied upon the condition the persons using Duff-Norton products will make their own determination whether this leakage may be dangerous, unsafe or cause damage of any nature whatsoever.

In no event may Duff-Norton be held responsible for unsafe operating practices of those employing Duff-Norton equipment. Users must be knowledgeable of the rotating union application and the product must never be operated outside the operating parameters given throughout this design guide. Duff-Norton Rotary Unions must not be used on media not specified in this design guide. If one is unsure about the safety of operating a rotating union in a particular application, it is strongly advised to contact Duff-Norton Engineering for assistance in determining suitability in the application.