Specifications

57
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Pressure Vacuum Breaker 720A Series
• 1/2”, 3/4”, 1”, 1
1
/
4
”, 1
1
/
2
”, 2”
• Pressure vacuum breaker consisting of an approved check valve, vacuum
relief float, inlet and outlet full port resilient seated ball valves for shut-off
and two resilient seated ball valve test cocks
• With BSP threaded connections
• Bronze body & bonnet
• Temperature range 33°F – 110°F
• Maximum pressure 150 psi
• ASSE
®
Listed 1020, IAPMO
®
Listed, CSA
®
Certified
• Approved by the Foundation for Cross-Connection Control and
Hydraulic Research at the University of Southern California
Model 720A FNPT x FNPT end connections
Model 720AL Less shut-off valves
Model 720ASH Supplied with stainless steel handles
Model 720AFT Supplied with fast-test test cocks
For Additional Information, reference WK-BPC catalog or visit
our web site.
OptionsTypical InstallationX Ref Features
The Wilkins 720A pressure vacuum breaker is designed to prevent the backsiphonage of
contaminated water from an irrigation system back into the potable supply. With its all bronze
body & bonnet construction and the use of silicone elastomers internally, the 720A is a time-
tested and solid design.
 ZW3 Winterizer
 Water Hammer Arrester (Model 1250)
 Quick test set (QT-SET)
Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted at a minimum of 12” (305mm) above
the highest piping or outlet downstream of the device. Install with adequate drain and sufficient side clearance for testing and maintenance. The
installation shall be made so that no part of the unit can be submerged. A pressure vacuum breaker cannot be installed where back-pressure could
occur or where spillage of water from vent could cause damage.
Accessories Applications
INDOOR INSTALLATIONOUTDOOR INSTALLATION
12" MIN.ABOVE
HIGHEST OUTLE
MODEL 720A
MODEL 720A
T
DIRECTION OF FLOW
DIRECTION OF FLOW
12" MIN. ABOV
E
HIGHEST PIPIN
G
WILKINS WATTS FEBCO
720A 800M4QT 765
Backflow Preventers