The Wilkins 1-720AFT is a 1" pressure vacuum breaker assembly designed for irrigation systems to protect against backsiphonage in non-potable water applications.

Key Specifications:

• Size: 1 Inches
• Maximum Working Water Pressure: 150 PSI
• Maximum Working Water Temperature: 110°F
• Notable Certifications: ASSE 1020, CSA B64.1.2
• End Connections: Threaded ANSI B1.20.1

Other Related Variants:

• None available

Materials:

• Main valve body: Cast Bronze ASTM B584
• Fasteners: Stainless Steel, 300 Series
• Elastomers: Silicone and Buna Nitrile
• Polymers: Polypropylene and POM Acetal (Delrin®)
• Springs: Stainless Steel, 300 Series

Typical Installation:

Local codes shall govern installation requirements. The Zurn 1-720AFT assembly shall be mounted at a minimum of 12 inches (305mm) 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

Features & Benefits:

• Backsiphonage Protection: Protects potable water supply from contaminated water in irrigation systems where potential health hazards exist.
• Durable Construction: Cast bronze body with corrosion-resistant stainless steel components ensures long-lasting performance in outdoor environments.
• Easy Maintenance: Fast-Test test cocks allow for simplified testing and servicing without removing the device from the line.
• Multi-Agency Approval: Meets multiple industry standards including ASSE, CSA, and USC Foundation approval for reliable cross-connection control.

FAQ

Q: What is the minimum installation height required for the Zurn 1-720AFT?

A: The assembly must be installed at least 12 inches above the highest piping or outlet downstream of the device to ensure proper operation and compliance with standards.

Q: Can this pressure vacuum breaker be installed where back-pressure could occur?

A: No, the Wilkins 1-720AFT cannot be installed where back-pressure could occur. It is designed to protect against backsiphonage only, not backflow caused by back-pressure.

Q: What type of applications is this product designed for?

A: This assembly is designed for non-potable water applications, primarily irrigation water lines, to protect the potable water supply from contamination.

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