Wilkerson A28 User Manual
Pneumatic Division
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Richland, Michigan 49083
269-629-5000
83-891-000, Rev. 3
WARNING
To avoid unpredictable system behavior that can cause personal injury
and property damage:
Disconnect electrical supply (when necessary) before installation,
•
servicing, or conversion.
• Disconnect air supply and depressurize all air lines connected to this
product before installation, servicing, or conversion.
• Operate within the manufacturer’s specified pressure, temperature,
and other conditions listed in these instructions.
• Medium must be moisture-free if ambient temperature is below
freezing.
• Service according to procedures listed in these instructions.
• Installation, service, and conversion of these products must be
performed by knowledgeable personnel who understand how
pneumatic products are to be applied.
After installation, servicing, or conversion, air and electrical supplies
•
(when necessary) should be connected and the product tested for
proper function and leakage. If audible leakage is present, or the
product does not operate properly, do not put into use.
Warnings and specifications on the product should not be covered by
•
paint, etc. If masking is not possible, contact your local representative
for replacement labels.
For more complete information on recommended application guidelines, see the
Safety Guide section of Pneumatic Division catalogs or you can download the
Pneumatic Division Safety Guide at: www.wilkersoncorp.com
Polycarbonate bowls and sight domes, being transparent and tough, are ideal
for use with Filters and Lubricators. They are suitable for use in normal industrial
environments, but should not be located in areas where they could be subjected
to direct sunlight, an impact blow, nor temperatures outside of the rated range.
As with most plastics, some chemicals can cause damage. Polycarbonate
bowls and sight domes should not be exposed to chlorinated hydro-carbons,
ketones, esters and certain alcohols. They should not be used in air systems
where compressors are lubricated with fire-resistant fluids such as phosphate
ester and di-ester types.
Metal bowls are recommended where ambient and/or media conditions are
not compatible with polycarbonate bowls. Metal bowls resist the action of most
such solvents, but should not be used where strong acids or bases are present
or in salt laden atmospheres. Consult the factory for specific recommendations
where these conditions exist.
TO CLEAN POLYCARBONATE BOWLS USE MILD SOAP AND WATER
ONLY! DO NOT use cleansing agents such as acetone, benzene, carbon
tetrachloride, gasoline, toluene, etc., which are damaging to this plastic.
Bowl guards are recommended for added protection of polycarbonate bowls where
chemical attack may occasionally occur.
Safety Guide
CAUTION
Installation & Service Instructions
83-891-000
Coalescing AfterFilter
Models A18 and A28
ISSUED: September, 2007
Supersedes: February, 2005
Doc. #83891000, EN# 070757, Rev. 3
7. To install a drain line, use the following procedure:
a. On units with the MANUAL DRAIN, attach flexible tubing
having an I.D. of 3/16" (4.8 mm) to drain stem.
b. On units with AUTOMATIC FLOAT DRAIN, install using a 3/8
or 10mm instant tube fitting and flexible tubing.
NOTE: CONTAMINATES REMOVED FROM THE COMPRESSED AIR
SYSTEM MUST BE DISPOSED OF IN ACCORDANCE WITH LOCAL,
STATE AND FEDERAL STANDARDS.
Maintenance
THIS UNIT MAY BE SERVICED WITHOUT REMOVING THE UNIT
FROM THE COMPRESSED AIR LINE.
1. Filter element replacement:
NOTE: DO NOT TOUCH THE EXTERIOR FOAM COVER OF THE
ELEMENT. USE THE PLASTIC BAG THE ELEMENT IS SHIPPED
IN TO HOLD THE ELEMENT AND INSTALL INTO THE BODY.
2. Liquid level in the bowl must be kept below the level indicator
3. T
4. Bef
5. If
(For Repair Kits and Replacement Parts see reverse side)
erential Pressure Indicator is RED indicating that the filter
a. Diff
element requires servicing.
b. Depressurize Unit and Vent System.
c. Remove bowl/bowl guard assembly by pushing up on bowl
assembly and turning clockwise. Clean inside of bowl using a
clean, dry cloth. Inspect plastic bowl for damage and replace if
necessary.
d. Remove filter element by turning element counterclockwise,
viewed
from below.
e. Install a new filter element / o-ring seal and reassemble
unit in reverse order.
line as marked. It is recommended practice to drain a unit
equipped with the manual drain at least once during an eight
(8) hour period.
o clean the AUTOMATIC FLOAT DRAIN, remove the drain nut
and drain. DO NOT DISASSEMBLE THIS DRAIN! Clean the
unit in warm soapy water and blow dry with a compressed air
blow gun.
ore returning unit to service, insure that all seals have been
reinstalled or replaced and bowl is locked into position with
drain properly secured.
the Differential Pressure Indicator no longer functions, it must
be replaced.
Installation
1. Refer to WARNING prior to installation.
2. Install as close to the point of use as possible.
3. Unit must be installed with the flow in the direction of the flow arrow
on the body cover and with bowl down.
4. Avoid using reducing bushings, couplings, etc., whenever possible
to install this product. These devices restrict air flow and can affect
performance.
5. Do not install this product in any application where the pressure
drop across the unit will exceed 8 psig (0.55 bar). This will cause
the Differential Pressure Indicator to shift to RED indicating element
replacement is required.
6. Maximum pressure rating is 150 psig (10.3 bar) for plastic bowl/bowl
guard assembly, and 250 psig (17.2 bar) for metal bowl with sight
gauge without DP indicator. Temperature range is 32°F to 125°F
(0°C to 52°C) for plastic bowl/bowl guard assembly, and 32°F to
150°F (0°C to 65.5°C) for metal bowl with sight gauge without DP
indicator.
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE
PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS
CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
This document and other information from The Company, its subsidiaries
and authorized distributors provide product and/or system options for further
investigation by users having technical expertise. It is important that you analyze
all aspects of your application, including consequences of any failure and review
the information concerning the product or systems in the current product catalog.
Due to the variety of operating conditions and applications for these products
or systems, the user, through its own analysis and testing, is solely responsible
for making the final selection of the products and systems and assuring that all
performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product features,
specifications, designs, availability and pricing, are subject to change by The
Company and its subsidiaries at any time without notice.
EXTRA COPIES OF THESE INSTRUCTIONS ARE AVAILABLE FOR INCLUSION
IN EQUIPMENT / MAINTENANCE MANUALS THAT UTILIZE THESE PRODUCTS.
CONTACT YOUR LOCAL REPRESENTATIVE.
WARNING
Coalescing AfterFilter Models A18 and A28 83-891-000
OCOC
A
D
C
B
E
SIDE VIEWFRONT VIEW
0.19" (4.7 mm) I.D.
Tube Barb Fitting
OC
Self-Tapping
Screws
Differential
Pressure
Indicator
Body
0.5 Micron
Element
Drain
Stem
O-Ring
Drain
Seat
O-Ring
Metal
Bowl
with
Sight
Gauge
Bowl
O-Ring
Differential
Pressure
Indicator
O-Rings
Body
Cover
Element
O-Ring
Drain
Stem
Drain
Seat
Drain
Knob
Dimensions
Models A B C D E
A18
A28
Inches
(millimeters)
8.2
(209)
9.3
(213)
2.36
(60)
2.9
(73)
2.36
(60)
2.9
(73)
1.9
(48)
1.9
(48)
1.2
(30)
1.4
(37)
Repair Kits and Replacement Parts
Element
Type B
0.5 Micron
Bowl
O-Ring
Nitrile
Plastic Bowl/
Bowl Guard
with Manual
Drain
Metal Bowl/
Sight Gauge
with Manual
Drain
A18 MSP-96-647 GRP-96-640 GRP-96-634 GRP-96-636
A28 MSP-96-649 GRP-96-654 GRP-96-642 GRP-96-644
Drains
Manual Drain ............................................................GRP-96-685
Accessories
Differential Pressure Indicator –
Nitrile ......................................................................DP8-01-000
Fluorocarbon ..........................................................DP8-02-000
2
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