Zurn - 1" Pressure Vacuum Breaker Backflow Preventer

The Zurn Wilkins 720A Pressure Vacuum Breaker (PVB) is designed to protect potable water systems from backsiphonage in irrigation setups. Ideal for residential and commercial irrigation lines, this PVB ensures health hazard protection where cross-connection risks exist. Constructed from heavy-duty cast bronze with stainless steel internals and FDA-approved elastomers, the 720A delivers durable, corrosion-resistant performance. With a 150 PSI maximum working pressure and a user-friendly, field-serviceable design, it’s engineered for efficiency, longevity, and compliance with industry standards.

Key Features:

• Cast bronze valve body and bonnet for superior durability
• Stainless steel springs and fasteners resist corrosion in harsh environments
• Tapped full port ball valves allow installation in any orientation
• Integrated serial number is visible from all installed positions
• Threaded end connections conform to ANSI B1.20.1
• Field-serviceable design allows full access without removal from the line

Technical Specifications:

• Operating Pressure Range: Up to 150 PSI
• Flow Control: Yes
• Max Operating Temperature: 110°F
• Inlet Size: 1"
• Connection Size & Type: 1" Female NPT threaded
• Material: Cast Bronze (ASTM B584)
• Spring & Fasteners: Stainless Steel (300 Series)
• Elastomers: Buna N & Silicone (FDA-approved)
• Polymers: Polypropylene and Delrin®
• Hydrostatic Test Pressure: 300 PSI
• Certification: ASSE 1020, CSA Certified, IAPMO Listed

Installation & Application:

• Recommended for residential and light commercial irrigation systems
• Install a minimum of 12” above highest downstream outlet
• Cannot be installed where back-pressure may occur
• Requires proper drainage and access for maintenance and testing

Compatibility & Optional Accessories:

• Compatible with QT-SET Quick Test Fitting Set
• Optional connection styles: Z-Bite™ Push Fit (PF) and Z-Press™ Press Fit (PR) for 1” and smaller
• Available repair kit and optional Water Hammer Arrester (Model 1250XL)

For contractors needing reliable, code-compliant backflow protection, the 720A PVB delivers durable performance and easy installation. Explore compatible fittings and accessories to streamline your next irrigation project.