Page 127 - DixonSanitaryCatalog20082010

125 Dixon Sanitary 2010 800.789.1718
Check Valves
R
Check
Valves
Air Relief Valves
Product Specifcations
Dimensions are approximate. Engineering dimensions are available upon request.
Specifcations are subject to change without notice.
• 3A authorized
•no special tools required
•ball and gaskets are replaceable
•The valve seals for both pressure and vacuum.
•All product contact surfaces have a radius of ¼" or better.
• The valve ball is constructed of FDA, 3A approved
polypropylene.
• PTFE valve ball is available
• other gasket materials available
• maximum operating temperature: 230°F
Applications
1.Bleeding of a tube line where an air pocket has formed.
This application calls for installation at the top of the
tube.
2.Bleeding of a tube on the suction side of a pump. The
suction side is bled automatically, before the pump starts,
establishing a vacuum. Binding of air to liquid will be
prevented, and so will subsequent cavitation. In this
application the valve is mounted in front of the pump, on
the top of the inlet tube.
Working Principle
The Bradford™ air relief valve allows air to be removed from a
line or container without the liquid fowing out. Its design does
not allow air to enter the line or container, even if subjected to
a negative pressure. It is a double-seated valve with a freely
moving polypropylene ball. The ball, which is lighter than
water, closes against the upper or lower seat, depending on
the pressure conditions.
Description A B C D E F G H J 304 Stainless Steel
Part Number
1½" air relief valve
with tapped blind end
1.98 1.4 1.5 --- 2.4 --- --- --- 1/8" NPT BARV-G150
2" air relief valve with
tapped blind end
2.51 1.4 1.5 --- 2.4 --- --- --- 1/8" NPT BARV-G200
1½" air relief valve
with 180° elbow
1.98 1.4 --- 1.5 --- 0.37 4.5 1.1 --- BARVE-G150
2" air relief valve
with 180° elbow
2.51 1.4 --- 1.5 --- 0.37 4.5 1.1 --- BARVE-G200
1447 58-00