The best of three worlds: braided packing, CHEVRON® V-rings, and urethane U-seals.

SLUDGE-PAK® hydraulic packing sets are designed to reduce the friction and abrasion often associated with vertical sludge pumps. In the bottom of the stuffing box is Style 8921-K. Next is Style 432 CHEVRON® sealing rings. Topping off the set is a Style 9220 GARTHANE® (urethane) U-seal. This unique packing arrangement decreases the chance of scoring plungers, providing unbeatable performance in today’s waste treatment industry.


  • The best properties of each component improve sealability
  • Combined styles react better to varying pressure conditions
  • Individual components do not cause equipment damage
  • Longer life, fewer repacks
  • Less chance of costly premature failure
  • Reduces expensive downtime and wear on spare parts


  • For use in Carter, Marlow, Komline Sanderson, and Passavant vertical sludge pumps
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