Mechanical Seal Style 53A

Single API Rotating Welded Metal Bellows Cartridge Design Seal

Mechanical Seal Style 53A


API 682 Arrangement 1
Type B Seal
Configuration 1CW-FL

  • Heavy duty cartridge design
  • Self-cleaning rotating bellows
  • Hydraulically balanced
  • Multi-point injection arrangement
  • Piloted gland to positively center seal assembly
  • Flush, quench, drain gland with 1/2″ NPT for process side and 3/8″ NPT for atmospheric side to help eliminate improper piping assembly
  • Carbon floating bushing
  • Metal-to-metal confined gland gasket
  • Double ply bellows designs available for higher pressures


Operating Conditions

Max Temp:400ºF (200ºC)
Max Pressure:300 PSI (20 bar)
Max Speed:4500 FPM (23 m/sec)

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time. Contact Flex-A-Seal if in doubt.


For more information on style 53A


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