Circpac MD
Product Brand
OEM and Special Duty Seals
About this product

Circpac MD seals are a segmented circumferential seal designed for fans, blowers, dryers, turbines, centrifuges and other rotating equipment. Circpac MD seals come packaged in a convenient split housing for easy installation. Standard designs consistently outperform packing, bushings, labyrinths, and felt seals with lower gas consumption over a wider range of operating conditions.

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  • Floating circumferential rings are hydraulically balanced with hydrodynamic surface topography to minimize wear at high speeds and pressures
  • Standard radially split seal housing enables installation without dismantling equipment or requiring equipment modifications
  • Multiple ring configurations are available for higher pressures, process venting or draining, inert gas purging, reduced emissions, and emergency backup
  • Companion inert gas support panels are available to provide adequate flow and pressure of nitrogen or other barrier gases to achieve near zero emissions

Temperature: -40 to 593°C (-40 to 1100°F)

Speed: up to: 46 m/s (150 fps)

Size Range: 35 to 457 mm (1.375 to 18.000 inches)

Pressure Class Range: Pressure: vacuum to 6.9 bar (100 psi)

  • Single ring Low pressures
  • Tandem rings Process vent or drain
  • Double rings Inert barrier gas injection
  • Triple rings Inert barrier gas injection Lower barrier gas consumption rate
  • Quadruple rings High pressure Multiple vent, drain, or barrier gas injection ports

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