Rotary union
30Pages

FILTON ROTARY UNION technical manual

FILTON ROTARY UNIONS - AN INTRODUCTION A Rotary Union is a device which can be connected to a rotating shaft and allow the leakproof transfer of fluids to and from the stationary services. The vital components of Rotary unions are the rotary seals and the bearing support systems. For the majority of applications the FILTON BELLOWS SEAL is the most efficient. If pressure and/or speed exceed the capability of the bellows seal we can provide a FILTON MECHANICAL SEAL. Important These products are intended for use on a factory environment. Contact us if the installation is subjected to climatic...

ROTARY UNIONS - TYPICAL APPLICATIONS Single flow - type B.E. Bearing Rotating roll Rotary Union Type BE Rotary Union Type BE Flexible hoses Drilled or cored fluid cavaties Machine frame FILTON ROTARY UNIONS type B.E. shown on a drilled roll typical of a plastics calendar. Fluids are generally water, oil or heat transfer fluid. Double flow - type S.T. (stationary centre tube) Bearing Rotating cylinder Rotary Union Type ST Flexible hose Stationary Syphon pipe Machine Frame FILTON ROTARY UNION type S.T. shown on a steam heated cylinder typical of a paper dryer. Double flow - type R.S. (rotary...

ROTARY (R.E.) UNIONS Rotary (R.E.) Union type S.T. 1. Adaptor, high quality cast iron. 2. Bellows sub-assembly, brazed stainless steel. 3. Gaskets. 4. Seal ring sub-assembly, steel/carbon. 5. Locking screw, h.t. steel. 6. Spacer. 7. Circlip. 8. Ball bearings. 9. Body high quality cast iron. 10. Rotary spindle, steel. 11. Centre tube, if ordered, to customers specification. ❉THESE COMPONENTS ROTATE WlTH THE MACHINE SHAFT The Rotary (R.E.) Union is a self contained, self supporting rotary seal for the leak proof transfer of fluids (such as steam, water, air or oil) to and from rotating...

‘G’ is the designation for parallel pipe threads to BS.2779 and ISO 228/1 SEE PAGE 28 FOR INSTALLATION INSTRUCTIONS 5

ROTARY (P.B.) UNIONS Rotary (P.B.) Union type S.T. (fitted with a bellow seal) 1. Elbow, brass. 2. Bellows sub-assembly, brazed stainless steel. 3. Gaskets. 4. Seal ring sub-assembly, steel/carbon. 5. Locking screw, h.t. steel. 6. Spacer. 7. Circlip. 8. Ball bearings. 9. Body, dzr brass. 10. Locking ring. 11. Rotary spindle, steel 12. Centre tube, if ordered, to customers specification. ❉THESE PARTS ROTATE WITH THE MACHINE SHAFT Mechanical Seals are also available. (add MS to the Part No) The Rotary (P.B.) Union has been developed from the Rotary (R.E.) Union and utilises the same...

The part numbers shown are for units fitted with the bellows seal. Add suffix MS if a mechanical seal is required. For single flow type P.B./B.E. Nom size 15 (1/2") For double flow (stationary centre tube) type P.B./S.T. Nom size 15 (1/2“) For double flow (rotary centre tube) type P.B./R.S. Nom size 15 (1/2“) For dimension ‘A’ see the part No tables above ‘G’ is the designation for parallel pipe threads to BS.2779 and ISO.228/1 SEE PAGE 28 FOR INSTALLATION INSTRUCTIONS 7

ROTARY (R.E.B.) UNIONS Rotary (R.E.B.) Union type B.E. 1. Adaptor, s.g. iron. 2. Bellows sub-assy, brazed stainless steel/carbon. 3. Gaskets. 4. Body, s.g. iron. 5. Seal ring, hardened stainless steel. 6. Locking screws, h.t. steel. 7. Locking ring-inner. 8. Ball bearings—shielded from the seal chamber. 9. Locking ring-outer. 10. Rotary spindle, steel. ❉ THESE COMPONENTS ROTATE WITH THE SHAFT The Rotary (R.E.B.) Union is a self contained, self supporting rotary seal for the leak proof transfer of fluids (such as steam, water, air or oil) to and from rotating machine shafts. The type of...

‘G’ is the designation for parallel pipe threads to BS.2779 and ISO 228/1. SEE PAGE 28 FOR INSTALLATION INSTRUCTIONS 9

ROTARY (C.B.) UNIONS Rotary (C.B.) Union type S.T. 1. Adaptor, high quality cast iron. 2. Bellows sub-assembly. brazed stainless steel. 3. Gaskets. 4. Seal ring sub-assembly, steel/carbon. 5. Locking screw, h.t. steel. 6. Spacer. 9. Bearing sub-assembly, steel/carbon. 10. Body, high quality cast iron. 11. Rotary spindle, steel. 12. Centre tube, if ordered, to your specification. 13. Thrust Pad, stainless steel. 14. Set screw, h.t. steel. ❉ THESE COMPONENTS ROTATE WITH THE MACHINE SHAFT The Rotary (C.B.) Union is a self contained, self supporting rotary seal for the leak proof transfer of...

‘G’ is the designation for parallel pipe threads to BS.2779 and ISO 228/1. SEE PAGE 28 FOR INSTALLATION INSTRUCTIONS 11

Adaptor, s.g. iron. Bellows sub-assembly brazed stainless steel/carbon. Gaskets. Spacer, plated steel. Seal ring, hardened stainless steel. Locking screw, h.t. steel. Thrust bearing, carbon. Journal bearing, carbon. Body, s.g. iron. Rotary spindle, steel. ❉THESE COMPONENTS ROTATE WITH THE SHAFT The Rotary (C.B.N.) Union is a self contained, self supporting rotary seal for the leak proof transfer of fluids (such as steam, hot water or oil) to and from rotating machine shafts. The type of Rotary Seal fitted to the Rotary (C.B.N.) Union is a “FILTON BELLOWS SEAL” containing a flexible...

Specify R or L with the part No to suit thread ‘A’ and the direction of rotation *The tolerance f8 is to I.S.O 286-2 and BS.EN 20286-2 “G” is the designation for parallel pipe threads to B.S.2779 & I.S.O. 228/1. SEE PAGE 28 FOR INSTALLATION INSTRUCTIONS 13

Rotary (L.C.) Union Type B.E. 1. 2. 3. 4. Body. Mechanical seal assembly. Ball bearings - life lubricated. Rotary spindle. ❉ THIS PART ROTATES WITH THE SHAFT The Rotary (L.C.) Union is intended to light duty applications and is of a simple design using the minimum amount of parts. It is not intended as a unit that can be repaired, though this is possible. For low pressures, temperatures and modest speeds with occasional use it is ideal. For continuous use and easy repairability we recommend the Rotary (R.E.) Union (see page 4), or the Rotary (P.B.) Union (see page 6). The Rotary (L.C.)...