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Oil Filters:
Our company
established since
1971, our Filters
has been at the
forefront of oil
filter technology
and performance for
passenger cars,
light trucks, heavy
trucks and buses,
and off-highway
vehicles. - meaning
we keep filtering
long after the
competition has
completely quit.
What the Oil Filter
Does...
You may take your
oil filter for
granted, but this
small, inexpensive
part of your
vehicle's
lubrication system
plays a vital role
in protecting the
engine from
premature wear. Each
moving part in the
engine and the
cylinder walls
requires clean oil
for proper
lubrication and
lasting life. The
oil filter cleans
the oil as it passes
through the filter
element or filtering
media. This prevents
abrasive
contaminants in the
engine lubrication
system from damaging
engine parts.
The better you
understand your
engine's lubrication
system, the more
you'll appreciate
the vital role your
oil filter plays.
When the engine is
running, oil enters
the oil pump through
a screened intake.
The screened intake
-- or oil pick-up --
is located in the
crankcase near the
bottom surface of
the oil pan. The oil
is drawn through the
screen intake and
forced by the oil
pump through the oil
filter.
Oil from the main
gallery is also fed
through vertical
passages to the
crankshaft main
bearings and through
the crankshaft to
the rod bearings.
Oil thrown from the
crankshaft, or
sprayed from the
connecting rods,
lubricates the
pistons and cylinder
walls.
In a typical
full-flow type oil
filter, the oil
flows into an inlet
passage and then
through the
filtering element.
After flowing
through the filter
element, the
filtered or "clean"
oil passes directly
to the main oil
gallery. In a
partial-flow type
filter, the oil
returns directly to
the oil pan.
Oil Filter Media
The media is the
filtering material
in the oil filter
element. It
essentially
determines the
efficiency,
performance and
useful life of the
oil filter.
There are two basic
types of filter
media: the "paper"
media and the
"depth" type media.
The primary features
of the filter
elements are:
Particle size
retention
(filtration
efficiency)
Particle size
retention is the
measure of the
degree to which the
filter can retain
particles of various
sizes. Our filters
has developed
optimum particle
size retention
quality in filter
media by
sophisticated
laboratory tests.
Our filters media in
the automotive
full-flow oil filter
is able to trap and
hold essentially all
the contaminant
particles larger
than 25 microns. (A
human hair measures
approximately 70
microns in diameter.
An object that is 1
micron in size is
.000039 inches in
diameter.) Our
filters also capture
a high percentage of
even smaller
particles.
Dirt-holding
capacity
Dirt-holding
capacity is the
amount of
contaminant that can
be removed and held
by the filter until
the filter ceases to
function. The
capacity of our
filters is
significantly larger
than the minimum
requirements to
efficiently filter
all the oil during
the oil and filter
change periods as
specified by vehicle
manufacturers.
Resistance to oil
flow
Our filters
full-flow oil
filters for
automotive
applications use
arch-pleated,
prescription-blended
media. When new, the
media with a
maximized number of
pleats has less than
2 psi pressure drop
when filtering oil
at a rate of 4
g.p.m. at normal
operating
temperature. This
low initial
restriction to oil
flow protects the
vital engine parts
more effectively.
Parts of an Oil
Filter
Gasket -
provides
exterior seal
between the
filter and
engine at the
engine mounting
surface.
Mounting Plate -
prevents
deflection
(movement) at
the gasket
sealing surface.
Heavy gage steel
plate provides
for threaded
attachment to
the engine.
Inner Element
Support -
provides inner
element
stabilization
and a positive
seal between the
inner element
and the mounting
plate to prevent
the bypass of
unfiltered oil.
Upper End Cap -
retains element
end sealant and
filter media,
provides an
outlet for clean
oil, and
provides
structural
rigidity to the
pleated media.
Lower End Cap -
retains element
end sealant and
filter media.
Arch-pleated,
Prescription-blended
Filter Media -
provides a more
than adequate
filter area. The
element has a
controlled
porosity blended
media to assure
complete
filtration of
the oil.
Spiral-wound
Center Tube -
provides
internal element
support. The
spiral design
greatly reduces
initial flow
restriction when
compared to
other designs.
Coiled Spring -
ensures a
constant load on
the inner
element to
maintain the
seal between the
upper element
end cap, the
inner element
support, and the
mounting plate
even during
pressure surge
situations.
- Filter
Canister -
encloses the
assembly with a
mechanically-locked
double seam. The
canister
provides
"flutes" at the
closed end for
ease of removal
with an oil
filter wrench.
- Silicone
Anti-Drainback
Valve - Stays
flexible in
extreme
temperatures,
improves oil
flow and keeps
oil in filter to
prevent engine
destroying dry
starts. Also
provides lasting
protection to
meet new vehicle
manufacturers
longer
recommended oil
change
schedules.
Nitrile valves
can harden and
become
ineffective over
time.
Some of our
filters full-flow
filters include
anti-drainback
and/or filter
by-pass valves.
These types of
filters are
identical to
full-flow filters,
except that a
by-pass valve
replaces the inner
element support and
an anti-drainback
valve has been
added. The
Anti-Drainback Valve
prevents oil from
draining out of the
filter inlet holes
when the engine is
shut off. It also
provides seal
between clean and
dirty oil at the
upper end cap. This
is necessary in
applications where
the oil filter is
mounted in a
horizontal or
inverted position.
The Filter By-Pass
Valve
If a Our filters
full-flow filter
becomes "clogged",
or excessively
restrictive to oil
flow, the filter
by-pass valve
ensures continued
engine lubrication
by allowing the oil
to by-pass the
filter. Some vehicle
manufacturers have
the by-pass valve
built into the oil
filter mounting unit
(located on the
engine).
Other vehicle
manufacturers
require full-flow
filters have the
by-pass valve built
into the filter
itself. All Our
filters oil filter
types recommended
for these particular
applications include
the :
1- by-pass valve
assembly in the
filter.
2- By-pass Valve
Assembly --
spring loaded
valve assembly
that allows oil
to
3- By-pass the
element under
high-differential
pressure
conditions such
as cold oil
and/or
excessively
contaminated
media. This
allows
lubrication of
the engine, but
without
full-flow
filtration.
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