FlexiSeal® Rotary Seals | Zatkoff

FlexiSeal® Rotary Seals

FlexiSeal® Rotary Seals


The Rotary FlexiSeal® should be used when speeds are relatively low (<1000 sfpm) and pressures are high (up to 10,000 psi). FlexiLip™ and FlexiCase™ profiles should be used when pressures are low and speeds high. Rotary FlexiSeals feature either a flanged design or an O-ring on the OD to keep the seal fixed in the bore as the shaft rotates. The O-ring can either be centered along the OD or be located in the heel of the seal. Virtually any O-ring material can be supplied with a custom rotary FlexiSeal®, but a fluorocarbon material is standard.

Choosing the Right Design

While choosing the right rotary FlexiSeal® for your application, you need to consider:
  • Pressure
  • Shaft Velocity
  • Lubrication
  • Shaft Misalignment
  • Shaft Runout
  • Shaft Hardness
  • Shaft Surface Finish
  • Different Spring Choices
  • Lip Shapes
  • Shaft Lead


Since the FlexiSeal® solves problems along several parameters, it can be found in virtually every market including:

  • Aerospace
  • Automotive
  • Chemical Process
  • Appliances
  • Electronics
  • Food & Beverage
  • Heavy Machinery
  • Hydraulic
  • Machine Tools
  • Marine
  • Medical
  • Military
  • Oil & Gas
  • Pharmaceutical
  • Semiconductor


Radial applications with extreme conditions that involve lower speeds and higher pressures, for which the Rotary FlexiSeal® is best suited, include:

  • Compressors
  • Cryogenics
  • FDA Clean Grade
  • Jet Engines
  • Hydraulic Cylinders
  • Pressure Washers
  • Robotics
  • Rotary Unuions
  • Steering Cylinders
  • Swivels
  • Vapor Recovery Systems
  • Many more