AVB has various meanings in the Construction category. Discover the full forms, definitions, and usage contexts of AVB in Construction.
An Atmospheric Vacuum Breaker is a backflow prevention device used in plumbing to prevent backflow of non-potable liquids into the drinking water system. It is usually constructed of brass and resembles a 90 degree elbow with a hood on its top to allow air to enter the water system if a siphon attempts to form.
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