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Adjustment & Calibration
2180 AND 3180 ADJUSTABLE AIR
USA:
Dixon Bayco USA
Chestertown, Maryland
Phone: 410-778-2000
Fax: 410-778-4702
Toll Free: 800-355-1991
E-mail: dixonbayco@dixonvalve.com
Europe:
Dixon Group Europe Ltd
Preston, England
Phone: +44 (0)1772 323529
Fax: +44 (0)1772 314664
E-mail: enquiries@dixoneurope.co.uk
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: contactenos@dixonvalve.com.mx
Instructions
Dixon Bayco
RELIEF VALVES
For Sales and Service Contact
dixonvalve.com
For
Canada:
Dixon Group Canada Limited
Innisfil (Barrie), Ontario
Phone: 705-436-1125
Fax: 705-436-6251
Toll Free: 877-963-4966
E-mail: isales@dixongroupcanada.com
Asia Pacific:
Dixon (Asia Pacific) Pty Ltd Wingfield,
South Australia
Phone: +61 8 8202 6000
Fax: +61 8 8202 6099
E-mail: enquiries@dixonvalve.com.au
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Summary of Contents for Dixon 2180
- Page 1 Adjustment & Calibration Instructions Dixon Bayco 2180 AND 3180 ADJUSTABLE AIR RELIEF VALVES For Sales and Service Contact USA: Canada: Dixon Bayco USA Dixon Group Canada Limited Chestertown, Maryland Innisfil (Barrie), Ontario Phone: 410-778-2000 Phone: 705-436-1125 Fax: 410-778-4702 Fax: 705-436-6251...
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Page 2: Air Relief Valve - Theory Of Operation
2180 and 3180 Adjustable Air Relief Valves Air Relief Valve – Theory of Operation All Dixon Bayco air relief valves are spring-loaded system-pressure actuated devices consisting of a valve disc held in a closed position against a valve seat by means of spring pressure. The pressure in... - Page 3 2180 and 3180 Adjustable Air Relief Valves In practice the valve should be matched to the system to be protected such that the maximum airflow rate of the valve is never utilized, i.e. the valve should be capable of relieving a sufficient volume flow rate of air at the opening pressure to ensure that the system pressure drops significantly.
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Page 4: Valve Adjustment
2180 and 3180 Adjustable Air Relief Valves Valve Adjustment Dixon Bayco adjustable air relief valves should be adjusted no more than +/- 3 PSI from the factory supplied setting. Adjustment in excess of +/- 3 PSI may result in a failure to vent or a significant loss of venting capacity. - Page 5 5. Screw the pressure relief valve to be tested into a 2" (for 2180), or 3" (for 3180), port on your test system using pipe sealant on the air relief valve threads.
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Page 6: Valve Installation
(or equivalent) across the hex flats. Care and Handling Brand New 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. -
Page 7: Dixon Bayco Warranty
2180 and 3180 Adjustable Air Relief Valves 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.