Wilkins 34-420XL | Pressure Vacuum Breaker with Anti-Freeze Relief Valve
Wilkins 34-420XL | Pressure Vacuum Breaker with Anti-Freeze Relief Valve is backordered and will ship as soon as it is back in stock.
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Wilkins 34-420XL | Pressure Vacuum Breaker with Anti-Freeze Relief ...
The Wilkins 34-420XL is a pressure vacuum breaker assembly with integral anti-freeze relief valve designed to protect potable water systems against backsiphonage in continuous pressure applications.
Key Specifications:
- Size: 3/4 Inches
- Maximum Working Water Pressure: 175 PSI
- Maximum Working Water Temperature: 140°F
- Notable Certifications: ASSE 1020, NSF/ANSI 372
- Threaded Connections: ANSI B1.20.1
Other Related Variants:
- 1-420XL: 1 Inch model size
Materials:
- Cast Bronze ASTM B 584 main valve body
- Silicone FDA Approved elastomers
- Buna Nitrile elastomers
- Polypropylene FDA Approved polymers
- POM Acetal (Delrin) polymers
- PPE (Noryl) polymers
- Stainless Steel 300 Series springs
Typical Installation:
Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be installed in accordance with the manufacturers' instructions and the latest edition of the Uniform Plumbing Code. The assembly shall be mounted at a minimum of 12 inches 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.
Standards Compliance:
ASSE Listed 1020; UPC Listed; CSA Certified B64.1.2; Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California; NSF/ANSI/CAN 372
Features & Benefits:
- Backsiphonage Protection: Protects potable water supply against contaminated water backsiphonage in continuous pressure applications where health hazards exist.
- Freeze Protection Design: Integral anti-freeze relief valve reduces risk of valve damage under intermittent, non-seasonal freezing conditions for indoor or outdoor installation.
- Easy Maintenance: Replaceable thermoplastic modular cartridge allows entire assembly to be accessible for maintenance and testing without removing device from the line.
- Lead-Free Compliance: Low lead bronze construction meets NSF/ANSI/CAN 372 requirements with less than 0.25% weighted average lead content for safe potable water applications.
FAQ
Q: What is the minimum installation height requirement for the Wilkins 34-420XL?
A: The Zurn 34-420XL assembly must be mounted at a minimum of 12 inches above the highest piping or outlet downstream of the device to ensure proper operation and protection.
Q: Can the Zurn 34-420XL be installed where back-pressure could occur?
A: No, a pressure vacuum breaker cannot be installed where back-pressure could occur or where spillage of water from vent could cause damage. It is designed only for backsiphonage protection under continuous pressure.
Q: What materials are used in the construction of the Wilkins 34-420XL?
A: The assembly features a low lead cast bronze body (ASTM B 584), FDA approved silicone and Buna Nitrile elastomers, FDA approved polypropylene and other thermoplastic polymers, and stainless steel 300 series springs for durability and compliance.
NOTICE: Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system.
"Hydrate Everyone, Everywhere!" BottleFillingStations.com | Contact us
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.
