Hydraulic Seals - Trelleborg Sealing Solutions

n Choice of the Sealing Element
Sealing elements have a decisive influence on the design,
function and service life of hydraulic and pneumatic
cylinders and systems.
This also applies to piston seals. Leak tightness, wear and
gap extrusion resistance, resistance to process media and
temperatures, low friction, compact form and simple
installation are required to meet the demands of the
industry.
The significance of these parameters and their limits
depends on the requirements of the specific application.
Trelleborg Sealing Solutions has developed a complete
range of seals which, due to their optimized geometries
and designs and the use of high-quality materials such as
Turcon ® and Zurcon ® , satisfies the technical and economic
demands of the industry.
In order to be in a position to select the most appropriate
seal type and material, it is necessary to first define all the
desired functional parameters. Table I can then be used to
make an initial selection of seals according to the specific
requirements of the application.
The second column of the table contains the page number
on which general information and specific design and
installation instructions on the particular seal type and
materials (or material combinations with multi-element
seals, e.g. Turcon ® Glyd Ring ® T) can be found.
Furthermore, attention is drawn to the quality of the
mating surface. We recommend that the limits specified
there be observed, as they have a decisive influence on the
functionality and service life of the system.
The final choice of seal type and material must also take
into account the detailed information on the seal
elements.
Please do not hesitate to contact your local Trelleborg
Sealing Solutions sales office for further information on
specific applications and special technical questions.
4
Piston Seals
Notes
All multi-element standard piston seals, e.g. Glyd Ring ® T,
are supplied as complete seal sets. The supply includes the
seal and matching elastomer energizing elements.
Designs of seals no longer contained in this catalog
continue to be available. For all new applications we
recommend the use of the seal types and preferred sizes
(ISO series, wherever possible) listed in this catalog.
Other combinations of Turcon ® materials and special
designs can be developed and supplied for special
applications in all intermediate sizes up to 106 inches
(2.700 mm) diameter.
The sizes contained in this catalog are generally available
from stock or can be supplied on short notice. We reserve
the right to modify our supply program.
Latest information available at www.tss.trelleborg.com
Edition February 2008