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  • Fits equipment with confined space requirements and limited seal chamber depths in pumps, mixers, blenders, agitators, compressors and other rotary shaft equipment.
  • The seal is designed with a drive band and drive notches that eliminate overstressing of bellows. Slippage is eliminated, protecting the shaft and sleeve from wear and scoring.
  • Automatic adjustment compensates for abnormal shaft-end play and run-out, primary ring wear and equipment tolerances.
  • Optional balanced design allows for higher pressure applications, greater operating speeds and lower wear.
  • Non-clogging, single-coil spring allows for greater dependability than multiple spring design.



Operating conditions:

  • Temperature: -40˚C to 260˚C/-40˚F to 500˚F
  • Pressure: type PC05 - 22.5 bar/325 psig      type PC05T - 13.5 bar/200 psig
  • Speed: Up to 25 mps / 196 fps


  • Seal face: Sintered/Reaction bonded Silicon carbide (Q1/Q2), Antimony/Graphite resin impregnated carbon (A/B), Tungsten carbide (U2)
  • Seat: Sintered/Reaction bonded  Silicon carbide (Q1/Q2), Tungsten carbide (U2), Ceramic (V1)
  • Secondary seals: FKM (V), EPDM (E), FFKM (K), (P)
  • Spring and Metal parts: CrNiMo steel (G), (F), (M)

Installation View

PB05 PB05B