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Nuraseal Sealing Products  |  Filton® Rotary Union Products

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Rotary R.E. Union

(Sizes 1/4" to 1-1/4")





Maintenance and Overhaul


• Remove bolts and washers (4) which allow for the removal of the adapter (5) and body (11).

• Remove the bellows subassembly and the gasket of the seal kit (6).

• Remove locking screws and unscrew the carbon subassembly (R.H. thread) of the seal kit (6).

• Remove the spacer (7).

• Thoroughly clean and check the ball bearing kit (9). Re-lubricate using an approved grease. If there is any doubt about the bearing condition, replace it by removing circlip (8) and then pressing-off the bearing kit.

• If the adapter (5) is Type R.S., remove the locking screw (3), unscrew the locking ring (1) and remove the C/T bearing (2).

• Replace seal kit (6), bearing kit (9) and if Type R.S., C/T Bearing (2). Handle the seal kit with care to avoid damaging the lapped seal faces.

• Thoroughly clean all parts before reassembly (which is virtually the reverse of the above steps).

• After reassembly, follow the recommended installation procedures and allow for a suitable run-in period to ensure the seals are working correctly before refitting to the machine. 



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Other R.E. Links

• Description & Dimensions

• Model Numbers

• Part Identification

• Maximum Operating Recommendations

• Flow Capacity

• Installation Procedures

• Maintenance and Overhaul

• Lubrication

• Download R.E. Union Manual.pdf


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Intro to Rotary Unions

Typical Applications

Rotary Union Models

•  R.E. (1/4" to 1-1/4")

•  P.B. (1/2" to 1)"

•  C.B. (1/4" to 1-1/4")
High Temperature

•  R.E.B. (1-1/2" to 6")

•  C.B.N. (1-1/2" to 6")
High Temperature)

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•  Screw Threads

•  Flanges


•  Syphon Elbows

•  Flexible Hoses

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