In a custom manufacturing world, what separates a good company from an exceptional company? The ability to engineer and design the right solution for YOU!

TRITEC prides itself not only in our consistent quality and on-time delivery, but also in our ability to listen to your needs. Through our 90+ years of combined PTFE seal experience, our Engineering department will design the right solution for you. We have an exceptional edge on the competition because our founder pioneered the use of PTFE as a seal material in everything from hydraulic fluid, to asphalt, to gypsum. This legacy knowledge has been passed down to our Engineering team, ensuring that you have the best of both worlds: historical know-how combined with cutting edge technology.

The chart below demonstrates how we can rapidly engineer, design, and provide you with a print to review and approve, and make prototype parts for you faster than anyone in the industry.

  • TRITEC Prototype Design
  • TRITEC Seal Design

What are the main contributing factors that determine the seal design?

  • Running Surface Hardness (56-62 HRc recommended)
  • Running Surface Finish (8-16 Ra)
  • Plunge Ground Shaft
  • Radial Cross Section
  • Bore Depth
  • Bore I.D.
  • Shaft O.D.
  • Pressure
  • RPM
  • Media to seal/exclude
  • Temperature Range
  • Shaft Rotation (CW, CCW, Bi-Directional)

Once our Engineers have the necessary information from you, we will design your seal. There are literally several dozen PTFE rotary lip seal designs that they will use as a baseline for your seal. Some very common designs can be seen below.

Once a seal design has been chosen for your application, seal lip enhancements are now considered that will add more life and success to your sealing needs.

One of the most beneficial seal lip enhancements is the Hydrodynamic feature. Developed over 50 years ago by TRITEC’s founder, Steve Sekulich, its design creates a pumping action that moves the media away from the seal! Another excellent element design is the Flex Groove, which reduces the load/interference on the shaft without sacrificing seal material contact on shaft.

Below are illustrations of some common seal lip enhancements.

Many seal applications we work on are in extreme/severe environments, so we often need to create unique seal designs based upon your application. Below are some simple examples of designs that represent not so common applications.