A
fabric reinforced diaphragm is produced from a wide variety of fabric
of varying strength, weights, and weaves. The fabrics themselves
range from natural fibers, such as silk and cotton to the man-made
fibers and high strength arimids. The elastomeric coatings can be put
on both sides of the fabric in equal thickness or an unbalanced
coating. Many applications require elastomeric coatings on only one
side, especially in applications where the pressure differential
is in one direction. When knit fabrics are employed, the coating is
usually on one side and the same side as the pressure. This allows
the fabric to support the coating on both sides for flat diaphragms.
These
diaphragms are used in pumps, such as automobile fuel pumps, hand
pumps, and diaphragm air compressors. In these cases an outside
mechanical force is actuating the diaphragm. This functions to
displace a volume of media. In the case of a pump the diaphragm
creates a low pressure area causing the fluid or gas to move into
this area. In all the above cases the function of the diaphragm will
generally be the determining factor when considering the type of
construction, the material composition, fabric design, that is
whether it is weave or knit, and the type of polymer.
Darcoid
has manufactured for a large variety of high volume applications like
fabric reinforced diaphragms and die cut gaskets for quite some time
now. The unique process for producing precision extruded and die cut
seals provides customers tremendous latitude in design flexibility,
and eliminates tooling charges for any ID/OD combination from .030"
to 19.000" outside diameters.
Darcoid's
seals and sealing solutions are made with only "sealing grade"
material formulations with the highest possible percentage of polymer
for the most effective long-term sealing solutions. Extruded and die
cut products are usually supplied as ID/OD tubing type
cross-sections, but can also be supplied in a variety of different
cross-sections such as square, rectangular and triangular. Custom
cross-sections are also available are also delivered by Darcoid
Nor-Cal Seals.
Darcoid
Nor-Cal Seal's die cut seals and gaskets offer long term
sustainability, excellent wear performance, complete material
traceability and easy installation. Darcoid Nor-Cal Seal offers
several different grades and types of compounds for all your
application and sealing needs. Darcoid supplies sealing solutions for
usage in applications in many industries including automotive,
aerospace, semiconductor, medical, instrumentation and process
control industries, they offer an inexpensive solution to design
problems.
