Maintenance & Operating
Instructions
For
Dixon Bayco
2182 AIR RELIEF VALVES
For Sales and Service Contact
USA:
Canada:
Dixon Bayco USA
Chestertown, Maryland
Phone: 410-778-2000
Fax: 410-778-4702
Toll Free: 800-355-1991
E-mail: [email protected]
Dixon Group Canada Limited
Innisfil (Barrie), Ontario
Phone: 705-436-1125
Fax: 705-436-6251
Toll Free: 877-963-4966
E-mail: [email protected]
Europe:
Asia Pacific:
Dixon Group Europe Ltd
Preston, England
Phone: +44 (0)1772 323529
Fax: +44 (0)1772 314664
E-mail: [email protected]
Dixon (Asia Pacific) Pty Ltd Wingfield,
South Australia
Phone: +61 8 8202 6000
Fax: +61 8 8202 6099
E-mail: [email protected]
Mexico:
Dixva, S. de R.L. de C.V.
Monterrey, N.L
Phone: 01-800-00-DIXON (34966)
Fax: 01-81-8354-8197
E-mail: [email protected]
dixonvalve.com
2182 Air Relief Valves
To properly operate and maintain your Dixon Bayco 2182 air relief
valve the following instructions are provided. Please read with care
as improper handling or maintenance may cause a hazardous
condition.
Dixon Bayco air relief valves are designed and built to provide
accurate and consistent operation; however periodic inspection,
cleaning, and maintenance of these valves is required to ensure
continued trouble free service.
Dixon Bayco air relief valves consist of a spring-loaded poppet valve
that seals against a rigid annular valve seat. When the system
pressure reaches the valve opening pressure the poppet lifts and
system air passes under the poppet and out to atmosphere. When a
sufficient volume of air has been relieved the system pressure will
drop and the poppet will reseat.
When these valves are used in applications that subject them to
particulate laden air, there is potential for contamination of the valve,
larger particles such as grains, plastic pellets etc. can get trapped
between the valve seating surfaces. Applications involving fine
particles such as cement, fly ash, lime, flour, etc. can result in a
cementing of hardened product on the valve seat or poppet surface
can occur. These situations can prevent the valve from fully
reseating, prevent it from opening and can lead to early opening
or leakage from the valve.
To prevent this from occurring, we advise that air/vacuum relief
valves be regularly inspected, cleaned and maintained. At a minimum
the valve seat and poppet sealing surface should be inspected and
cleaned, and the small air vent hole in the top casting checked for
blockage. The inspection, cleaning, and maintenance should be
carried out with the valve removed from the system to a clean
environment.
Do not modify your Dixon Bayco air relief valve for any
reason. It can result in a hazardous condition due to operating
difficulties or operation malfunction. Disassembly or tampering
will void the product warranty.
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877.582.3569
2182 ARV
2182 Air Relief Valves
Installation
1. Prior to installation, clean any dirt or foreign matter from connection
surfaces.
2. Install air relief valve in positions ranging from vertical (0°) to
horizontal (90°). The opening pressure will be reduced if the valve is
not mounted vertically. Do not install valve in inverted position.
3. Install air relief valve with exhaust area positioned so exhaust
vents safely (preferably down). Downward venting” prevents dirt or
debris from entering the valve during travel.
4. Threaded versions only, removable thread locking compound is
recommended for mounting.
5. Threaded versions only, thread the valve into place by hand and
tighten using a crescent wrench (or equivalent) across the hex flats.
6. Victaulic grooved, and Cam & Groove connection models come
with a lug for attaching a security chain.
Care and Handling
Dixon Bayco air relief valves are tested at the factory and are in
proper working condition when shipped. Air relief valves are
designed to be tough and to provide long service with reasonable
care and handling.
Operation and Maintenance Instructions
Weekly visual inspection of the valve is recommended.
1. Ensure that the valve body and exhaust vents are kept clear of
buildup.
2. Ensure that exhaust vents remain clear of all obstructions.
3. Inspect the valve regularly to ensure connection tightness.
Excessive blower vibration may cause valve to loosen over time.
4. The Dixon Bayco air relief valve is assembled with tamper resistant
screws and is pre-set at the factory to customer requirements. Any
attempt to disassemble or adjust settings for any reason will void the
manufacturer’s warranty.
Dixon Bayco Warranty
For complete warranty information, please refer to the latest
Dixon catalog.
2182 ARV
877.582.3569
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