O-Rings and Seals
Seal Life With a Unique Seal Design Plus Kalrez® Superior
seal life span in dovetail grooves has been extended by DuPont's new seal design, the Trilobe™ Seal.
In this design the excellent chemical, thermal and plasma resistance
of Kalrez® perfluoroelastomer parts is combined 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 installation difficulties as well as short seal
life and particle generation due to seal wear and degradation.
and Benefits of the TriLobe™ Seal
Molded notch makes installation a snap!
Reduces installation time
Avoids improper installation
Geometry interlocks in groove to prevent seal from rolling and
twisting during installation.
Bottom lobes lock seal in place to resist pullout and movement
Seal parting lines are maintained below the flange surface,
eliminating direct exposure to plasma or process chemicals.
Seal design and compound selection combine to yield REDUCED
PARTICLE GENERATION and SIGNIFICANTLY INCREASED SEAL LIFE!
TriLobe™ Seal Applications
valve doors, gate valves and other semi-dynamic sealing applications
that utilize a dovetail groove configuration.
the evaluation phase for this new product, samples were submitted
for evaluation at OEMs and FAB lines. Initial evaluations have
focused around slit valve door seal applications in a variety
of processes using different equipment platforms. The response
has been overwhelmingly positive. FAB lines are delighted with
the ease of installation. Moreover, some customers have reported
as much as 3X improvement in seal life over that of a standard
O-ring configuration. Experience the difference and increase your
mean time between failures.
Molds have already been developed for a number of common slit
valve door seal part sizes.
A Kalrez® TriLobe™ seal can be developed to fit any
size dovetail groove.
TriLobe™ seal is available in a variety of Kalrez®
compounds. As an authorized distributor, we
can help you determine the best compound to optimize seal performance
for your set of process conditions.
us for pricing and availability.
information set forth herein is furnished free of charge and is
based on technical data that DuPont and
Problem Solving Products, Inc. believe to be reliable. It is intended
for use by persons having technical skill, at their own discretion
and risk. Handling precaution information is given with the understanding
that those using it will satisfy themselves that their particular
conditions of use present no health or safety hazards. Since conditions
of product use and disposal are outside of our control, we make
no warranties, express or implied, and assume no liability in
connection with any use of this information. As with any material,
evaluation of any compound under end-use conditions prior to specification
is essential. Nothing herein is to be taken as a license to operate
or a recommendation to infringe on any patents. While the information
presented here is accurate at the time of publication, specifications
can change. Check with us before making a decision about which
product to use.
and Food Handling Applications
is a registered trademark of DuPont