Phốt Cơ Khí Style 78

Style 78

Giới thiệu: Style 78



Tandem Rotating Welded Metal Bellows Cartridge with Pumping Ring

  • Cartridges for the critical, toxic and fugitive emission applications where single seals are not acceptable.
  • Easy to install cartridge designs.
  • Incorporated pumping ring improves cooling of barrier fluid.
  • A tangential connection maximizes flow of barrier fluid.
  • Can be operated in pressurized or non-pressurized state.
  • Static O-rings throughout
  • Self-cleaning bellows action
  • Fits all ANSI standard and big bore pumps.
  • Metric sizes are available.
  • Retained faces eliminate troublesome drive pins.
  • Tandem design maintains product and barrier fluid on O.D. of both seals for increased safety and heat dissipation.
  • Hydraulically balanced design.
  • Double Ply available for higher pressure.
  • Shrouded face design for added protection.
  • API 682 Type B low temperature and Type C high temperature. Tandem Arrangement 2 and 3 available.

Operating Conditions

Max Temp - 400ºF (204ºC)
Max Speed - 4500FPM (22 m/sec)

Max Pressure
Inboard - 300 PSI (20 bar)
Outboard - 250 PSI (17 bar)

Style 76

Tandem Rotating Welded Bellows Cartridge

  • Cost effective version of Style 78, designed for applications in which pumping ring or tangential connection are not required.

Operating Conditions

Max Temp - 400ºF (204ºC)
Max Speed - 4500FPM (22 m/sec)

Max Pressure
Inboard - 300 PSI (20 bar)
Outboard - 250 PSI (17 bar)
Differential Pressure - 15-25 PSIG recommended.
Higher pressure is available consult Flex-A-Seal.


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