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Specifications
Description
The Zurn Wilkins 14-ZWFR is a 1/4" freeze relief valve for freeze protection (backflow devices).
The ZWFR Freeze Relief Valve prevents damage from sudden or unexpected freezes on all major brands of Backflow Preventers and Pressure Vacuum Breakers installed above ground. Its durable, compact design requires no periodic maintenance and allows for easy, hassle-free installation. The Model ZWFR automatically opens at 35°F to discharge near freezing water from the backflow device, drawing warmer supply water through the valve until closing when the temperature reaches 40°F. It should be installed on the downstream test cock or attached piping of any backflow device, and is best installed in the vertical down position, though horizontal orientation is possible.
Features
- Compact, thoughtful design eliminates periodic maintenance and eases installation
- Suitable for wide range of applications in areas where unexpected freezes occur
- Automatically opens at 35°F and closes at 40°F
- 300 series stainless steel springs and cast bronze body resist corrosion
- IAPMO® LISTED - IGC 163-2001r1
Common Questions
- What does this valve protect against?
- This valve senses water temperature and opens at 35°F to discharge near-freezing water from a backflow preventer or vacuum breaker mounted above ground, drawing warmer supply water through it; it closes again at 40°F. It protects against freeze damage, not overpressure.
Specifications
- Type: Freeze Relief Valve
- Size: 1/4"
- Application: Domestic Water
- MPN: 14-ZWFR
- Certifications: IAPMO
- Relief Type: Freeze Relief
- Application: Freeze Protection (Backflow Devices)
Dimensions
| Size Nominal | 1/4" | — | — |
Details
| Series | ZWFR | Device Type | Freeze Relief Valve |
| Application | Domestic Water | Relief Type | Freeze Relief |
| Application Class | Freeze Protection (Backflow Devices) | — | — |
Certifications & Standards
| IAPMO | — |
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