Backflow Preventer Services
Different types of backflow preventers
The primary difference between backflow preventer types lies in their level of protection against water contamination, determined by the hazard level of the connected system. Reduced Pressure Zone (RPZ) assemblies provide high-hazard protection, Double Check Valve Assemblies (DCVA) offer moderate-hazard protection, Pressure Vacuum Breakers (PVBs) are for low-hazard systems like irrigation, and Atmospheric Vacuum Breakers (AVBs) offer basic protection for low-risk applications such as garden hoses. The primary difference between backflow preventer types lies in their level of protection against water contamination, determined by the hazard level of the connected system. Reduced Pressure Zone (RPZ) assemblies provide high-hazard protection, Double Check Valve Assemblies (DCVA) offer moderate-hazard protection, Pressure Vacuum Breakers (PVBs) are for low-hazard systems like irrigation, and Atmospheric Vacuum Breakers (AVBs) offer basic protection for low-risk applications such as garden hoses.
Understanding Backflows
A backflow preventer is A mechanical device designed to stop the undesirable reverse flow of water from a property's plumbing system into the public drinking water supply. This reverse flow, called backflow, can happen due to a negative pressure in the water supply (backsiphonage) or an excessive pressure in the system (backpressure). Backflow preventers protect the public water supply from contamination by using one-way check valves, air gaps, or other mechanisms to create a physical barrier, ensuring that only clean, potable water flows in the correct direction.