Glossary
Backflow Prevention Arrangements
Follow the links below to get definitions of each of the recognised backflow prevention arrangement. Air gap Tap gap Type AA air gap – air gap with unrestricted discharge Type AB – Air gap with weir overflow Type read more
Backflow Prevention Devices
Please follow the links below to see definitions of each backflow prevention device: Type BA – Verifiable backflow preventer with reduced pressure zone Type CA – Non-verifiable disconnector with different pressure zones read more