DuPont™ Kalrez® to Help Reduce Particle Generation
DuPont's Trilobe seals can help improve seal life in dovetail grooves. The improved design combines the excellent chemical, thermal, and plasma resistance of Kalrez® FFKM parts with a unique cross-sectional shape that eliminates many of the problems associated with semi-dynamic seal applications using a dovetail groove. These problems include shorter seal lifespan, installation difficulties, and increased particle generation due to seal wear and degradation.
So what makes these Kalrez® seals unique?
- The molded notch makes installation quick and easy, oftentimes significantly reducing the time for installs. Additionally, it elminates improper installation and user error.
- The geometry of the seal interlocks in the groove to help prevent the seal from rolling or twisting during installs.
- The bottom lobes lock the seal in place to resist movement or "pullout" during actuation.
- The seal parting lines are maintained below the flange surface, which helps to eliminate direct exposure to plasma or process chemicals.
- Most importantly, the seal design and compound selection combine to yield reduced particle generation and increase your seal lifespan.
Suggested applications for Kalrez® Trilobe™ Seals in Dovetail Grooves
- Gate valves
- Slit valve doors
- Semi-dynamic sealing applications that use a dovetail groove configuration
With many slit valve door size and gate valve sizes, molds have already been developed for the most common types of sizes seen in semiconductor applications. However, Kalrez® TriLobe™ seals can be developed to fit any dovetail groove size you require.
Many compounds are available for these types of seals and can be manufactured in as little as a few weeks.
IES Technical Sales can assist with all your Kalrez needs. Contact us today to see how we can help.