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800.355.1991
Dixon Bayco 2016
5
Dry Bulk Products
Products
Dry Bulk
Valve Series
Valve Connection
Available Factory Set
Pressure Range (PSI)
1
Set Pressure
Tolerance (PSI)
Diaphragm Material
Relieving
Capacity
(SCFM)
2
A2180/xxADJ
2" female NPT
9 to 30
+1/-0
white food grade silicone 500 to 950
A3180/xxADJ
3" female NPT
9 to 30
+1/-0
red silicone
750 to 1500
Adjustable Pressure Setting Valves
Application:
Designed specifically for use on trailer tanks containing dry bulk products. If a system blockage
were to occur, the valves are designed to vent to atmosphere once the valve pressure setting
is achieved. The advantage of the adjustable air relief valve is that the factory preset pressure
can be tuned by -3/+3 PSI to meet tank/application specific pressure requirements (adjustments
should be performed by either the tank builder or tank maintenance facility).
Not intended for blower service (for blower service applications see the 2182 series air
relief valves shown on page 3)
Not Rated for ASME Coaded Service Requirements
Standards:
Valves have a +1/-0 set pressure tolerance (valve opens at set pressure plus 1 PSI) and are
adjustable by -3/+3 PSI.
•
A2180ADJ has a 2" female NPT and A3180ADJ has a 3" female NPT connection
Materials:
Bayloy vent cowl with aluminum upper, bronze poppet with white food grade silicone diaphragm in
the 2180/A2180, red silicone diaphragm in the 3180/A3180
Features & Benefits:
•
Available with a variety of pressure settings, see chart below for model specific available
pressure settings. Customer should request set pressure at time of order.
•
The factory preset pressure can be tuned by -3/+3 PSI to meet tank/application specific
pressure requirements (adjustments should be performed by either the tank builder or tank
maintenance facility).
•
Relieving capacity (SCFM) varies dependent upon model and pressure setting. See chart
below, or for specific relief rates please refer to our website or contact Dixon™.
•
Installed cup seal deters tampering
•
Bayloy body eliminates thread galling
A2180-xxADJ
¹ request the required pressure setting when ordering (xx refers to choice of pressure setting)
² relieving capacity (SCFM) varies with set pressure, for specific rates please refer to our website or contact Dixon™
•
Relieving pressure is factory set at 21°C, high temperatures will affect the actual relieving pressure.
•
See page 23 for air relief testing equipment
PVC Coated Lanyards
Part #
Description
CAL15
15" long PVC coated carbon steel cable, with aluminum crimp sleeves. One end is factory crimped, other
end is un-crimped for field inspection.
CAL25
25" long PVC coated carbon steel cable, with aluminum crimp sleeves. One end is factory crimped, other
end is un-crimped for field inspection.
A3180-xxADJ
CAL15
Product instruction sheets and technical data, can be viewed on our website at
dixonvalve.comTrailer/Tank Mounted Air Relief Valves