SSS Index
Compressor Seals



Centrifugal compressors and other turbomachinery are critical to the operation of a process plant. Selecting a manufacturer with well proven state-of-the-art low friction dry gas seals who can offer full field maintenance support is very important. The Gaspac seal is a proven design using advanced patented bi-directional SMT groove technology. Flowserve FSD Gaspac seals have millions of hours with more than 1000 units furnished around the world.

Gaspac design features:
  • Bi-directional patented SMT-grooves, uni-directional APGS optioanal
  • Very high pressure capability up to 3300 psi per face
  • Very high speed capability up to 650 fps with silicon nitride
  • Temperature up to 400 F
  • Size range from 1-1/2" to 12"
  • Lightweight silicon nitride face option for less rotodynamic influence
  • Low leakage rates
  • Multiple material combinations available
  • Standardized components and established proven designs
  • Every seal is performance tested before delivery for optimum quality


  • CIRCPAC 977
    GASPAC 986
    GASPAC 987
    TURBOPAC 375
    PRESSURE:TO 720 psi
    TEMPERATURE:TO 360 F
    SPEED:TO 19500 fpm
    STD SIZES:1.570 TO 10.250"

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