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Pressure Vacuum Breaker Backflow Preventers with Freeze Sensor

  • Sensor on PVB signals when temperature nears the freezing point
  • Freeze alerts help extend use of the PVB device by reducing damage and repair
  • Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures
  • All bronze body for durability. One check valve and an air opening port in one assembly
  • Lightweight poppet seals air opening under minimum flow conditions
  • Simple service procedures. All internal parts serviceable in line from the top of the unit
  • Designed for minimum head loss
  • Freeze alerts feature available with add-on connection kit for Wi-Fi networks, building management systems (BMS), and irrigation management systems (IMS)

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA