Zurn Wilkins 720A 2" Pressure Vacuum Breaker (PVB) - 2-720A
The Zurn Wilkins 720A 2" Pressure Vacuum Breaker (PVB) provides reliable backflow protection for high‑hazard, non‑potable irrigation and landscape systems. Built with a cast-bronze body and serviceable components, the 720A is designed for durability, freeze resistance, and easy field maintenance.
Install the 720A a minimum of 12 inches above the highest downstream outlet and avoid locations subject to back-pressure or flooding. Follow the included specification and installation documents for dimensions, testing procedures, and local code compliance. Replacement parts and repair kits are available to extend service life.
Features
- Model: 720A — Size: 2" (also available 1/2"–2`).
- Maximum working pressure: 150 PSI; maximum working temperature: 110°F; hydrostatic test pressure: 300 PSI.
- Construction: main valve body and bonnet cast bronze (ASTM B584); stainless-steel fasteners and springs; silicone and Buna-N elastomers; polypropylene/Delrin internal components.
- Includes full-port inlet and outlet shutoff valves, two centerline test cocks, loaded-air inlet and approved check valve for backsiphonage protection.
- Standards and approvals: ASSE 1020 listed, IAPMO and CSA certified; approved by USC Foundation for Cross-Connection Control and Hydraulic Research.
- Designed for non-potable irrigation and commercial/residential landscape applications where high-hazard protection is required.
- Field serviceable: removable bonnet and available repair kits (for 1-1/4"–2" sizes) allow in-place servicing without removing the assembly from the line.
What our Experts Think
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Trusted 2" Pressure Vacuum Breaker (PVB) for reliable backsiphonage protection in irrigation systems.
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Durable bronze body delivers long-lasting performance and corrosion resistance.
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Designed for commercial and large residential sprinkler systems.
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Easy to test and maintain with two test cocks and full-port shut-off valves.
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Centerline test cocks provide convenient access for faster inspections and servicing.
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Rated for 150 PSI maximum working pressure for dependable operation.
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Certified to ASSE 1020, IAPMO, CSA, and USC Foundation standards for code compliance.
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Ideal for landscape irrigation, parks, sports fields, and commercial properties.
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A dependable choice for contractors and property managers seeking durable, code-compliant backflow protection.
Q&A
Q: What is the Zurn Wilkins 720A 2" Pressure Vacuum Breaker (2-720A)?
A: A 2-inch pressure vacuum breaker (PVB) backflow preventer designed to protect potable water systems from backsiphonage in high-hazard irrigation and non-potable water applications.
Q: Where is the 2-720A commonly used?
A: Residential, commercial, and landscape irrigation systems requiring reliable backflow prevention.
Q: What are its key features?
A: Durable cast bronze body, corrosion-resistant internal components, full-port shutoff valves, centerline test cocks for easier testing, and a serviceable design.
Q: What are the operating specifications?
A: 2" FNPT connections, maximum working pressure of 150 PSI, maximum temperature of 110°F, and hydrostatic test pressure of 300 PSI
Maintenance Tips
- Inspect regularly for leaks, corrosion, and debris buildup.
- Test annually to ensure proper backflow prevention and code compliance.
- Drain and winterize before freezing temperatures to prevent damage.
- Clean components with clean water; avoid harsh chemicals.
- Replace worn seals and parts using compatible repair kits.
- Keep the valve accessible for routine inspection and maintenance.
Damage 
Loss 
Theft 
