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Maintenance & Operating
2180 Air Relief Valve,
Authorized Repair Center
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
Repair Kit
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 Bayco 2180
- Page 1 Maintenance & Operating Instructions Dixon Bayco 2180 Air Relief Valve, Authorized Repair Center Repair Kit 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...
- Page 2 2180 Air Relief Valve Repair Kits Description Included in Repair Kit Vent Cowl Top Cover Spring Seat Diaphragm Spring Washer Yes (4) No, Do not use with this Spacers Bolt Yes (4) Cup Seal Upper Half Cup Seal Lower Half...
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Page 3: Air Relief Valve Repair Procedure
These instructions are intended for use with, and refer to, the 2180 air relief valve with set pressures of 15 PSIG and 18 PSIG. These instructions, and the contents of this kit should not be used with any other valve. - Page 4 . In the event that the required opening pressure (either 15 PSIG or 18 PSIG as noted on the kit) cannot be obtained through use of the spring alone, ensure that you have the correct repair kit and contact your Dixon Bayco sales representative immediately. 877.582.3569...
- Page 5 2180 Air Relief Valve Repair Kits Assembly Assemble the valve using the following procedure, referring to the diagram as needed. 1. Place vent cowl (1) on the table with threaded portion lowermost. 2. Place valve plate (11) onto the seating surface of the vent cowl (1) ensuring that the flat sealing surface is facing down (as shown in the diagram) and in contact with the vent cowl seating surface.
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Page 6: Air Relief Valve - Theory Of Operation
2180 Air Relief Valve Repair Kits 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 7 2180 Air Relief Valve Repair Kits 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.
- Page 8 2180 Air Relief Valve Repair Kits Testing The opening pressure of this valve may indicate differently depending on the test equipment, instrumentation and air supply used. Where possible the valve should be tested using identical conditions and the same equipment as will be found on the system to be protected.
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Page 9: Valve Installation
2180 Air Relief Valve Repair Kits 6. Tank pressure should be allowed to rise at a rate of approximately 2 PSI / second. Flow rates greater than this will cause the relief valve to flutter rapidly. In this condition the valve plate inertia may cause the apparent opening pressure to be lower than the calibrated value and will make accurate testing impossible. -
Page 10: Care And Handling
2180 Air Relief Valve Repair Kits 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.
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