Flowserve Pac-Seal

High-quality materials and innovative design make a Pac Seal the most dependable mechanical seal on the market.

Unique design features deliver significant end-user benefits

Crimped-head for the rotary unit

  • Removes any metal-to-seal ring contact, and keeps the seal ring from falling out during installation.
  • Prevents foreign material from dislodging the seal ring by collecting between the seal ring and the bellows.
  • Allows the rotary to withstand higher pressures and shaft speeds.
  • Unique hex-torque drive system
  • Provides a distributed drive loading around the seal’s outer shell resulting in an improved drive system and longer seal life