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 Flexaseal Engineered Seals and Systems, LLC if in doubt.


For more information on style 53A

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