Type-7700 | John Crane

Type 7700

Garniture cartouche modulaire à fonctionnement humide ou sec, face à face, pour les applications de mélangeurs et d’agitateurs

The Type 7700 is a modular dual pressurized, face-to-face, O-ring pusher, cartridge seal designed for severe duty mixer applications. It features a single rotating mating ring used by both inboard and outboard seals. This minimizes the number of components and results in an axially compact design. Inboard and outboard seals are identical, maximizing interchangeability. The Type 7700 is specifically designed to accommodate very large amounts of runout and angular deflection. The seal incorporates modular hardware to provide maximum interchangeability. Two combinations of seal face technology are available, contacting dry running (7700D) and contacting wet running (7700W) to maximize the Type 7700’s flexibility and value.

The heavy-duty Type 7700 is design-specific to serve critically important vessels in batch or continuous processes. It guards the batch from contamination, greatly reduces leakage, and extends Mean Time Between Planned Maintenance (MTBPM). For performance and durability, this dry-running or wet-running double opposed cartridge seal is in a class by itself.



  • California Residents: PROPOSITION 65 WARNING
  • Heavy-Duty Cartridge seal
  • Dual pressurized face-to-face arrangement
  • Externally mounted
  • Dry running or wet running capable
  • Heavy duty design for mixers
  • Accommodates high levels of runout and angular deflection
  • Robust ear drive design for high torque transmission 
  • Debris Well Option and Adapter Plate Option
  • Radial Bearing Option
  • Field repairable

Contact Us

Des centaines d’experts en ingénierie. Plus de 200 sites répartis sur la planète. Offrir l’innovation et les services pour vous aider à réussir.

Scroll to top