Warranty

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4848
BACKFLOW
PREVENTERS
BACKFLOW PREVENTERS
ACCESSORIESSTRAINERS
AUTOMATIC
CONTROL VALVES
PRESSURE
REDUCING VALVES
FIRE
PROTECTION VALVES
THERMOSTATIC
MIXING VALVESRELIEF VALVES
MISCELLANEOUS
PLUMBING PRODUCTSREPAIR KITS
SIZE
LEAD-FREE
PART NUMBER
LEAD-FREE
LIST PRICE EA.
WBR: PUSH-ON X GROOVED, 6’ X 6’ ELBOW STANDARD,
INCLUDES END CAP
 -WBR 1,717.20
 -WBR 2,236.30
 -WBR 2,951.90
 -WBR 4,449.60
WBR-F: PUSH-ON X FLANGED, 6’ X 6’ ELBOW STANDARD
 -WBR-F 1,753.30
 -WBR-F 2,468.90
 -WBR-F 3,309.70
 -WBR-F 4,736.90
APPLICATIONS
Designed to connect a water supply line from outside
the building to the water system inside the building.
The Model WBR may be used in potable water or fire
applications and has an all-stainless steel construction.
FEATURES
• 4” - 10”
• 200 psi max
• 140°F max
• Push-on inlet end connection (PVC or ductile iron
pipe)
• Grooved or flanged outlet end connection
• Brackets on inlet side provide attachment points for
pipe installation equipment
ZURN WILKINS
MODEL
350ADABG
CONNECTION
TO STREET
WATER MAIN
THRUST BLOCK
(POURED IN PLACE)
BUILDING
FOUNDATION
BUILDING WATER
SYSTEM
ZURN WILKINS MODEL WBR
BUILDING WATER
SYSTEM
BUILDING
FOUNDATION
CONNECTION
TO STREET
WATER MAIN
ZURN WILKINS MODEL 350DA
ZURN WILKINS MODEL WBR-F
THRUST BLOCK
(POURED IN PLACE)
TYPICAL INSTALLATION
APPROVALS AND APPLICABLE
SPECIFICATIONS
• UL ® Listed, ULC ® Listed, FM® Approved
• Certified to NSF/ANSI 372
WBR SERIES – IN BUILDING RISERS
APPLICATIONS
For installation on backflow preventers and vacuum
breakers. Ideal for regions where occasional/unexpected
freezes occur, yet winterization (flushout) is not
common.
FEATURES
• 1/4” MNPT
• 175 psi max
• 140°F max
• Opening temperature 35°F
• Closing temperature 40°F
• Test cock: 1/8” MNPT X 1/4” FNPT
• Compact size and shape allow for ease of installation
SIZE
LEAD-FREE
EXEMPT
PART NUMBER
LEAD-FREE EXEMPT
LIST PRICE EA.
ZWFR: 1/4" MNPT FREEZE RELIEF VALVE, W/ TEST COCK,
175 PSI
 -ZWFR 131.10
TYPICAL INSTALLATION
The Model ZWFR should be installed on the downstream
test cock or downstream attached piping of any
backflow device installed above ground where freezing
is a concern.
NOTICE: If the Model ZWFR is installed on a test cock,
the test cock must be left in the open position to allow
the ZWFR to function properly.
The device is best suited to be installed in the vertical
down position, but may also be installed at any
orientation up to horizontal. Orientations above
horizontal may cause an ice dam during operation and
impair valve function.
The device is not intended to replace the standard
winterization process.
WARNING: Under freezing conditions the Model ZWFR
will discharge water from the outlet port. Provisions
must be made to insure that discharge will not damage
surrounding property or equipment.
WILKINS
175 PSI
150PSI
TYPICAL INSTALLATION
ZWFR – FREEZE RELIEF VALVE