A Bunn 48345.0002 Backflow Preventer with Double Check & Vent blocks reverse water flow to protect internal components and support sanitary performance.
The backflow preventer with double check & vent prevents contaminated water from reversing into the incoming supply while maintaining proper directional flow through the equipment. Its double-check-and-vent design and 3/8" male flare connection provide reliable sealing, pressure protection and secure installation in water-fed systems.
The backflow preventer with double check & vent might be failing if the equipment has irregular water flow, pressure loss or possible backflow-related performance issues during operation. Physical signs can include leaks at the flare connection, while environmental signs may include moisture buildup, corrosion or mineral deposits around the valve body.
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