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SKU
14-ZWFR
Zurn - 1/4" ZWFR Freeze Releif Valve
- Ideal for regions where occasional/unexpected freezes occur, yet winterization (flushout) is not common
- Hassle free design requires no periodic maintenance, and can be used with all major brands of backflow preventer
- Compact size and shape allow for ease of installation
- Ideally suited for double-check and RP assemblies, vacuum breakers, and detector assemblies on large backflow products
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Product Details
The ZWFR Freeze Relief Valve prevents damage from sudden or unexpected freezes and is installed on backflow preventers and pressure vacuum breakers. The durable and compact design requires no periodic maintenance and is easy to install.
Standard Compliance: IAPMO® LISTED - IGC 163-2001r1
Features:
- Body Cast Bronze, ASTM B 584
- O-rings: Buna Nitrile (FDA approved)
- Spring: Stainless steel, 300 series
- Internals: Brass, ASTM B16
Specs:
- Maximum working water pressure: 175 PSI
- Maximum working water temperature: 140°F
- Inlet connection: 1/4" MNPT
- Nominal opening temperature: 35°F
- Nominal closing temperature: 40°F
- Test cock: 1/8" MNPT X 1/4" FNPT
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.
Specifications
Brand
Zurn Industries LLC
Connection Size
1/4"
Max Total Pressure
175 PSI
Resources & Videos
- Installation Installation (Size: 279 KB)
- Spec Sheet Spec Sheet (Size: 347.6 KB)
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Zurn Wilkins ZWFR Freeze Relief Valve