City of Beaverton Public Works

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City of Beaverton Public Works

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Cross Connection/Backflow Prevention Assemblies

Four types of backflow prevention assemblies

Double check Valve Assembly (DCVA)
 Atmospheric Vacuum Breaker (AVB)
Reduced Pressure Backflow Assembly (RPBA)
 Pressure Vacuum Breaker (PVB)

Installation requirements for each type of backflow prevention assembly


Pressure Vacuum Breaker (PVB)
Reduced Pressure Backflow Assembly (RPBA)
Double Check Valve Assembly (DCVA)
Atmospheric Vacuum Breaker (AVB)

Note: Requirements may vary please call your local water purveyor


Cross Connection Information