1/2 765-QT-FZ PVB

Item Number: T765CBV
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$312.37
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Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Febco
  • Size: 1/2 inch
  • Body Material: Bronze
  • Maximum Working Pressure: 150 PSI
  • Temperature Range: 32°F to 140°F
  • Protects against health hazard and non-health hazard backsiphonage
  • Integrated freeze sensor for SentryPlus Alert® compatibility
  • Engineered plastic bonnet for freeze protection
  • All internal parts serviceable in line from top of unit

Description

This 1/2 inch FEBCO Series 765 Pressure Vacuum Breaker Backflow Preventer with quarter-turn shutoffs and freeze sensor protects against health and non-health hazard backsiphonage in various water systems. Its durable bronze body and engineered plastic bonnet ensure longevity and freeze protection. Designed for industrial plants, cooling towers, laundries, swimming pools, and irrigation systems, it features NPT end connections and a 150 PSI maximum working pressure. The integrated freeze sensor is compatible with SentryPlus Alert® technology for temperature monitoring, requiring an add-on connection kit for full alert functionality.

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Connections

  • This 1/2 inch backflow preventer features NPT ANSI/ASME B1.20.1 end connections.
  • It must be installed at least 12 inches above the highest piping and outlet downstream of the assembly to prevent backpressure.
  • An add-on connection kit (sold separately) is required to activate the integrated freeze sensor for communication with monitoring systems.

Installation Notes

  • Ensure installation in an easily accessible location for maintenance and periodic testing.
  • Do not install where backpressure could occur.
  • Maintain a discharge pressure above 3.0 psi to ensure proper seating of the air inlet poppet for 1/2" to 1 1/4" sizes.
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Additional Details

This 1/2 inch FEBCO Series 765 Pressure Vacuum Breaker Backflow Preventer with quarter-turn shutoffs is designed to protect against both health hazard and non-health hazard backsiphonage conditions in various water systems.

It is commonly used in industrial plants, cooling towers, laboratories, laundries, swimming pools, and lawn irrigation systems.

WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Consult your local water authority, building, and plumbing codes before installation.

WARNING: The freeze sensor provides alerts about possible freeze events but does not prevent them. User action is required to prevent freeze conditions and potential property damage.

Features

  • Features a durable bronze body construction.
  • Includes a spring-loaded check valve and an air relief valve with opening port.
  • Equipped with two resilient seated quarter turn shutoffs and test cocks for maintenance.
  • Designed for minimum head loss.
  • An engineered plastic bonnet protects the valve body from freeze damage.
  • All internal parts are serviceable in line from the top of the unit for simple maintenance.
  • Includes a freeze sensor for use with SentryPlus Alert® technology to monitor temperature and signal facility personnel when freezing conditions are imminent.
  • Freeze alerts are available with an add-on connection kit (sold separately) for Wi-Fi networks, Building Management Systems (BMS), and Irrigation Management Systems (IMS).

Specifications

  • Size: 1/2 inch
  • Body Material: Bronze
  • Elastomers: Nitrile
  • Maximum Working Pressure: 150 psi (10.3 bar)
  • Hydrostatic Test Pressure: 300 psi (20.7 bar)
  • Temperature Range: 32°F to 140°F (0°C to 60°C)
  • End Connections: NPT ANSI/ASME B1.20.1

Certificates & Approvals

  • USC FCCC & HR Manual
  • Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
  • ASSE 1020
  • UPC®
  • B64.1.2

Dimensions (Approximate)

  • Height (A): 6 1/4 inch (159 mm)
  • Width (B): 6 3/4 inch (172 mm)
  • Depth (C): 2 1/2 inch (64 mm)
  • Side Dimension (D): 3 3/4 inch (95 mm)
  • Length (E): 4 1/4 inch (108 mm)
  • Weight: 2.6 lb (1.2 kg)

FAQs

What is the primary function of this backflow preventer?

This 1/2 inch FEBCO Series 765 Pressure Vacuum Breaker is designed to protect water systems from health hazard and non-health hazard backsiphonage of toxic or non-toxic liquids. It ensures that contaminated water does not flow back into the potable water supply.

Can this product be used for drinking water systems?

No, a specific warning states it is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Always consult local water authorities and codes before installation.

How does the integrated freeze sensor work?

The freeze sensor is designed for use with SentryPlus Alert® technology to monitor temperature and signal facility personnel when conditions approach or reach freezing. An add-on connection kit (sold separately) is required to activate the sensor for communication with Wi-Fi, BMS, or IMS.

What are the maximum pressure and temperature ratings?

This backflow preventer has a maximum working pressure of 150 psi (10.3 bar) and can operate within a temperature range of 32°F to 140°F (0°C to 60°C).

What type of connections does this backflow preventer use?

The FEBCO Series 765 features NPT ANSI/ASME B1.20.1 end connections for standard plumbing integration.