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ACCESSORIES FOR ROTARY JOINTS


carbon

CARBON SEALING RINGS FOR STEAM HEADER SEAL



THE STEAM HEADER SEAL, OR IN MORE GENERAL TERMS THE FEEDER HEAD SEAL, REPRESENTS A SPECIAL FORM OF THE MECHANICAL SEAL. WHEN STEAM, HOT OR COLD WATER AND OTHER HEAT TRANSFER FLUIDS ARE FED TO ROTATING ROLLS AND DRUMS, VIBRATIONS AND OSCILLATORY MOVEMENTS CAN AS WELL AS THE ROTARY MOTION AND MUST BE COMPENSATED FOR BY THE SEAL. THUS THE DESIGN OF THE FEEDER HEAD SEAL MUST PERMIT CERTAIN ANGULAR MOVEMENTS.





carbon

FEEDER HEAD SEAL



IN THE MAJORITY OF DESIGNS IN COMMON USE, THIS IS ACHIEVED THROUGH THE FACT THAT AT LEAST ONE OF THE TWO CARBON SEALING RINGS IN A FEEDER HEAD SEAL HAS A CONVEX OR CONCAVE SEALING FACE. THE FEEDER HEAD SEALS ARE OFTEN ALSO EQUIPPED WITH CARBON BEARINGS, WHICH ARE OFTEN RUN DRY. IN STEAM HEADER SEALS, ONE OF THE TWO SEALING RINGS CAN SERVE AS A BEARING AT THE SAME TIME.





ACCESSORIES FOR ROTARY JOINTS

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