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Front-left view of Wilkins 12-720A 1/2" pressure vacuum breaker in cast bronze, showing inlet ball valve and test cock for maintenance.

Wilkins 12-720A 1/2" Pressure Vacuum Breaker (PVB) Assembly

Brand: Zurn Industries, LLC
Save 17%
$192.00
$159.99
SKU 12-720A

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The Wilkins 12-720A is a 1/2" Pressure Vacuum Breaker (PVB) assembly engineered to protect irrigation and other non-potable systems from backsiphonage. Robust bronze construction and tested components make it ideal where dependable backflow separation is required.

  • Size: 1/2" FNPT; also available in 3/4", 1", 1-1/4", 1-1/2" and 2".
  • Materials: cast bronze body and bonnet (ASTM B584); stainless steel fasteners; FDA-approved elastomers and polymers.
  • Performance: maximum working pressure 150 PSI, maximum working temperature 110°F, hydrostatic test pressure 300 PSI.
  • Standards: ASSE 1020 listed; IAPMO and CSA certifications; approved by the Foundation for Cross-Connection Control and Hydraulic Research at USC.
  • Design: independent check valve and loaded air inlet, two test cocks, and inlet/outlet full-port shutoff valves for easy testing and maintenance.
  • Application & limits: for non-potable irrigation use only; not low-lead compliant where potable lead-free products are required.

Serviceable design and available repair kits simplify maintenance. Install the assembly with the required clearance above the highest downstream outlet and consult the included specification sheet, repair parts list, and installation & maintenance instructions for official guidance.

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Frequently Asked Questions

What size options are available for the Wilkins 12-720A?
This listing is for the 1/2" 12-720A model; the 720A series is offered in sizes from 1/2" up to 2".
Can I use the 12-720A on potable water systems?
No. The 12-720A is not low‑lead compliant for potable applications and is intended for non‑potable irrigation use where local codes allow.
How often should the PVB be tested and maintained?
Follow local code. Annual inspection and testing are common; replace repair-kit components as needed and winterize where required.

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