Wilkins 14-ZWFR | Freeze Relief Valve for Backflow Preventers
Wilkins 14-ZWFR | Freeze Relief Valve for Backflow Preventers is backordered and will ship as soon as it is back in stock.
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Wilkins 14-ZWFR | Freeze Relief Valve for Backflow Preventers
The Wilkins 14-ZWFR is a temperature-sensing freeze relief valve designed to prevent freeze damage on above-ground backflow preventer installations in cold climates.
Key Specifications:
- Size: 1/4 Inches
- Maximum Working Pressure: 175 PSI
- Maximum Working Temperature: 140°F
- Notable Certifications: UPC Listed
- Connection Type: 1/4" MNPT inlet
Other Related Variants:
- Model ZWFR: Standard freeze relief valve configuration
Materials:
- Body: Cast Bronze (ASTM B 584)
- O-rings: Buna Nitrile (FDA approved)
- Spring: Stainless Steel (300 series)
- Internals: Brass (ASTM B16)
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. If the Zurn 14-ZWFR is installed on a test cock, the test cock must be left in the open position to allow the valve 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.
Standards Compliance:
UPC Listed
Features & Benefits:
- Automatic Freeze Protection: Temperature-sensing valve opens at 35°F and closes at 40°F to automatically discharge near-freezing water and draw warmer supply water through the system.
- Durable Construction: Cast bronze body with stainless steel spring and brass internals ensures long-lasting performance in outdoor installations.
- Flexible Installation: Can be installed vertically or up to horizontal position, accommodating various backflow preventer configurations.
- UPC Listed Compliance: Meets industry standards for freeze protection devices on backflow prevention systems.
FAQ
Q: What temperature does the Wilkins 14-ZWFR open and close?
A: The valve opens at 35°F to discharge near-freezing water and automatically closes when water temperature reaches 40°F.
Q: Where should the freeze relief valve be installed on a backflow preventer?
A: The Zurn 14-ZWFR should be installed on the downstream test cock or downstream attached piping of the backflow device. If installed on a test cock, it must be left in the open position.
Q: What orientation is recommended for installation?
A: The valve is best suited for vertical down installation but may be installed at any orientation up to horizontal. Avoid orientations above horizontal as they may cause ice dams and impair valve function.
NOTICE: Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system.
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Always consult with a licensed professional and check local codes before installation. For further details, check the Owners Manual.
Contact us at support@bottlefillingstations.com with any questions.
