A RP Valve is designed to prevent water from flowing back into the main potable water supply due to backpressure or backsiphonage. Commercial buildings have a mandatory RP valve installation and yearly inspection.

A PVB is another type of backflow prevention device used to protect potable water supplies from contamination in situations where backsiphonage, but not backpressure, is a concern. It’s commonly employed in irrigation systems, outdoor faucets, or low-hazard applications where the outlet is higher than the water source.

The DC Valve is a mechanical device used in plumbing and piping systems to prevent the backflow of water or other fluids. It’s designed to ensure that water flows in only one direction, protecting potable drinking water supplies from contamination due to backpressure or backsiphonage.