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Front and angled view of Febco 765 3/4-inch bronze pressure vacuum breaker with quarter-turn ball valves and test cocks.

Febco 765 3/4" Pressure Vacuum Breaker with Ball Valves

Brand: Febco
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$463.82
$347.86
SKU 765DBVFEB

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The Febco 765 3/4" Pressure Vacuum Breaker with ball valves protects potable water systems from backsiphonage in irrigation, cooling towers, laboratories, pools and industrial systems. Built for durability and easy service, this assembly combines a spring-loaded check valve and an air relief port in a single, compact bronze body, delivering reliable protection where code-compliant backflow prevention is required.

  • Bronze body construction for corrosion resistance and long service life.
  • Maximum working pressure 150 psi (10.3 bar) and operating temperature range 32–140°F (0–60°C).
  • Includes quarter-turn ball valves and two resilient-seated test cocks for fast isolation and field testing.
  • Engineered plastic bonnet and lightweight poppet minimize freeze damage risk and reduce head loss.
  • NPT threaded end connections (ANSI/ASME B1.20.1); internal parts serviceable in-line for straightforward maintenance.

Install the assembly in a vertical orientation with the air inlet in the upright position and the specified clearance above the highest downstream outlet per local code. Assemblies are factory tested; refer to the included installation, maintenance and freeze-protection documents for field testing, winterizing and service procedures. Model/SKU: 765DBVFEB.

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Frequently Asked Questions

What pipe connections does this valve use?
This model uses 3/4" NPT threaded end connections; follow local code for required clearances and mounting height.
Can the 765 PVB be installed horizontally?
No. The air inlet must remain vertical. Install the unit upright to ensure the air relief operates correctly.
How do I service or winterize the 765 PVB?
Service in-line from the top per the manufacturer manual. Follow freeze-protection instructions to drain and protect the unit.
Is this valve suitable for irrigation and pool systems?
Yes. The 765 is specified for irrigation, pools and industrial systems and is factory-tested for reliable backsiphonage protection.