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Self-Balanced Dry Running AD5 Seal


The EagleBurgmann AD5 seal is a balanced dry running seal having a faced combination of Teflon with special filler vs. Silicon Carbide/Ceramic. It is ideally suited for slow speed agitators where mixing of sealant is not desirable.


  • Narrow seal face, which minimize the heat generation.
  • Special geometry of the seal face ensures very effective heat dissipation.
  • Finds extensive use in pharmaceuticals and food industries where applications are under full vacuum and contamination of media is not at all permitted.
  • Use of Teflon with special filler instead of carbon, which is most commonly used, also avoids mixing/intrusion of carbon powder in the media. Hence this is an ideal choice for pharmaceutical application.
  • Seal is externally mounted and no metal components come in contact with the process fluids.
  • Simple construction for ease of installation and maintenance.
  • Very cost effective since no lubrication / cooling system is required for the seal.


  • Face Material: Teflon Special x Ceramic
  • Metal components: SS 316
  • Secondary Sealing: FKM / FFKM

Operating Limits:

  • Pressure: 5 bar 72 psi
  • Temperature: -22ºF to 347ºF
  • Speed: Up to 3.2 ft/s

(Consult EagleBurgmann for applications other than above limits)

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