The Wilkins 2-720A is a 2-inch pressure vacuum breaker assembly designed to protect potable water supplies from backsiphonage in irrigation systems.

Key Specifications:

• Size: 2 Inches
• Maximum Working Pressure: 150 PSI
• Maximum Working Temperature: 110°F
• Notable Certifications: ASSE 1020, UPC, CSA B64.1.2
• End Connections: Threaded ANSI B1.20.1

Other Related Variants:

• 12-720A: 1/2 Inches version
• 34-720A: 3/4 Inches version
• 1-720A: 1 Inches version
• 114-720A: 1 1/4 Inches version
• 112-720A: 1 1/2 Inches version

Materials:

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

Typical Installation:

Local codes shall govern installation requirements. Unless otherwise specified, the 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.

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:

• Backflow Protection: Protects potable water supply against backsiphonage from contaminated irrigation water in non-potable applications.
• Durable Construction: Cast bronze body with stainless steel components ensures long-lasting performance and corrosion resistance.
• Easy Maintenance: Full-port ball shut-off valves allow in-line maintenance and testing without removing the device from the line.
• Multiple Certifications: ASSE 1020, UPC, and CSA B64.1.2 certified for reliable cross-connection control compliance.

FAQ

Q: What is the minimum installation height required for the Zurn 2-720A?

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 protection.

Q: Can the Wilkins 2-720A 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 the vent could cause damage.

Q: What accessories are available for the Zurn 2-720A?

A: Available accessories include complete repair kits, Model 1260XL Water Hammer Arrester, and QT-SET Quick Test Fitting Set for testing and maintenance.

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