Milton Industries Lubricator 1132-8 - Form 8X801 - Manual (Page 3)

Normally, you will neither feel nor hear any
air coming from this hole. If you do, it means
either: (1) the regulator diaphragm has a
leak, (2) the little valve under the knurled
cap is dirty or (3) the regulator has been
installed backwards. If, on a new installation,
the regulator does not respond properly or
you hear air escaping, make sure you have
not reversed the IN and OUT ports - it
happens.
Pressure ranges - Regulators come in two
standard ranges: (1) 2 to 125 PSI and (2) 10
to 250 PSI. The maximum inlet pressure in
either case is 250 PSI. A special low
pressure mini-regulator is also available that
covers 3 to 60 PSI. This is the same
regulator that is used on the Model 1174
Desiccant Dryer system.
These devices play a vital role in many air
delivery systems. Be sure you select the
type best suited to your applications.
Two types available - Lubricators come in
two basic styles: (1) the drip type and (2) the
wick type. The drip type is the most popular
and the one best suited to the average
repair shop application. The wick type is
normally used for industrial applications.
The drip type - This style injects lubrication
into the system by allowing oil drops
periodically to drop into the air stream. The
rate at which the drops enter the stream is
fully adjustable. And once adjusted, the
adjusting knob can be removed to prevent
tampering.
The question is: How much oil to inject and
how is this accomplished? For the average
repair shop, 3 to 4 drops per minute is a
good starting point; you can raise or lower it
as you see fit. Since the lubricator delivers
oil only when air is flowing, here is one
method for setting the drip rate: Connect a
tubeless tire valve to the system (via a tire
chuck) and let the air pass through freely.
This is about the same volume of air
consumed by an impact wrench. Adjust the
drip rate to produce 3 to 4 drops per minute.
WARNING! - ALL FRL’s
FOR COMPRESSED AIR
SERVICE ONLY.
NOT TO BE USED ON
LIFE SUPPORT OR
BREATHING AIR
SYSTEMS.
This is sufficiently dry for practically any
purpose, including spray painting.
However, this drying efficiency comes with a
price. The desiccant that absorbs the water
vapor eventually becomes saturated with
water and can no longer absorb anymore.
Fortunately, you are alerted to this by a
change in desiccant color - from bluish-white
to pink.
When this happens, you have two choices,
depending on which desiccant system you
are using. If it is the rechargeable type,
simply remove the desiccant, dry it in a
vented oven at 275
° F for two or three hours,
then put it back in the filter.
If it is the disposable type, such as the Mini
In-line Desiccant Dryer (Models 1173/1174),
it’s even easier - just throw it away.
The Mini In-line Dryer is designed for those
users who do not need full-time dry air and
who wish to avoid the cost of installing a
rechargeable desiccant system. One Mini
Dryer will supply enough bone-dry air,
depending on humidity, to spray paint
several cars.
Remember though, all desiccant dryers
must be preceded by a Micro-Filter to
remove the water condensate. In addition,
they should also be preceded by an oil-
removing filter (described below). Failure to
do this will result in short desiccant life.
Oil-removing & Coalescing filters -
In addition to water and particulate matter,
oil can also be a contaminant in an air
system. This is especially true in paint
spraying.
A special series of Sub-Micron Oil Removing
Filters is available for this purpose. It will
remove particles down to 0.9 microns (0.03
microns for coalescing filters), over forty to
one hundred times as small as those
extracted by the standard Micro-Filter. This
is small enough to capture oil vapors (e.g.,
compressor blow-by) as well as water mist
too fine to be removed by a standard filter.
REGULATORS
Proper sequence of F-R-L components.
LUBRICATORS
The wick type - In this system, oil is
transferred to the air stream by having the
air pass over a wick saturated in oil. The
amount of oil injected this way is determined
by how much of the wick is exposed to the
air. The normal factory setting is for 50%
wick exposure. Raise or lower the wick, by
opening the lubricator, for more or less oil.
The wick type lubricator requires a fairly high
volume of air to function - a minimum of 30
SCFM. This is roughly equivalent to seven,
1/2-inch impact wrenches operating
simultaneously. Generally speaking,
compressors of 10 horsepower or less do
not have the capacity to handle a wick type
lubricator.
Poly bowl vs. Metal bowl - If you are using
a standard lubricant, such as 10 weight
non-detergent motor oil, either bowl is
satisfactory. If you are using a proprietary air
tool oil or a specialty lubricant, opt for the
metal bowl. Some of these special lubricants
may damage poly bowls. For rotary screw
compressor applications use a metal bowl.
Poly bowls damaged by chemicals are not
covered by warranty. Always install a
lubricator after a filter or regulator, never
before.
Page 3 / REV 03-2008
It achieves this exceptional filtration through
a white borosilicate element that can be
replaced when necessary. Similar to the
standard filter, these units also have an
over-night drain. Since they are not intended
to remove large quantities of water, they
should always be preceded by a Micro-
Filter.
Regulators, despite their precision valving
system, can be very long-lived devices. Ten
to twenty years is not unusual.
Keep it clean - The secret to this longevity
is clean air. Always, without exception,
precede your regulator with a Micro-Filter
and install it as close as you can get it. This
is why the Piggyback Filter-Regulator or
FRL Trio is such a good choice - they always
come with a filter. And never precede a
regulator with a desiccant dryer filter or a
lubricator nor use Teflon tape on the "IN"
port (use standard pipe dope).
That little hole in the
side - This is a relieving
port that allows the
regulator to be used on
d e a d - e n d e d
applications. This
means that you can
raise or lower the
desired pressure
without any air flow.
VENT
HOLE