Mechanical Seal Style 79

TANDEM HEAVY DUTY STATIONARY MULTI-SPRING CARTRIDGE

Mechanical Seal Style 79

Features

  • Incorporated pumping ring improves the movement – and the cooling effect – of the barrier fluid during operation
  • Tandem design maintains product and barrier fluid on O.D. of both seals for increased safety and heat dissipation
  • A tangential connection maximizes the flow of barrier fluid
  • Can be operated in pressurized or non-pressurized state configurations
  • Springs are located out of the product
  • Double balanced inboard face allows for reverse pressures in upset conditions
  • Easy to install cartridge design
  • Fits ANSI standard and big bore pumps
  • Metric sizes are available
  • Can be easily adapted to satisfy high pressure applications or in cases of extreme run out
  • Retained faces eliminate troublesome drive pins
  • Hydraulically balanced design
  • API 682 Type A Tandem Arrangement 2 and 3 available

Specifications

Operating Conditions

Max Temp: 400°F (204°C)
Max Pressure: Inboard – 400 PSI (28 bar)
Outboard – 400 PSI (28 bar)
Differential – 400 PSI (28 bar)
Max Speed: 4500 FPM (22 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.

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