8" Double Check Detector Backflow Preventer Valve Brass

The 8" Double Check Detector Backflow Preventer Valve protects your commercial fire protection systems and municipal drinking water supplies from cross-contamination. Installed directly into commercial fire sprinkler assemblies, this heavy-duty valve isolates non-potable fire suppression water from potable water lines while maintaining the high flow capacity required during active fire conditions.

Engineered to satisfy commercial plumbing and life safety compliance requirements, this double check detector assembly incorporates dual check valves and an integrated bypass meter to accurately monitor unauthorized water usage or backflow events. Compliance with standard installation mandates ensures your facility meets local health and fire safety codes while safeguarding the public water supply during system tests and critical operations.

Key Features & Construction

• Corrosion-Resistant Brass: Heavy-duty brass construction withstands harsh mechanical conditions and delivers long-lasting durability in demanding commercial environments.
• OS&Y Connection: Equipped with Outside Screw and Yoke gate valves to provide clear, visual open/closed status verification on the job site.
• Dual Check Design: Incorporates dual check valves and a detector assembly to precisely monitor backflow and prevent contaminants from entering potable lines.
• Maintenance-Friendly Access: Features accessible internal components that facilitate quick inspections and servicing, significantly reducing system downtime and labor costs.

Technical Specifications & Compliance Table

Submittal & Installation Note: Always verify local Authority Having Jurisdiction (AHJ) requirements, backflow certification mandates, and piping configurations prior to installation. Consult manufacturer cut sheets for complete engineering dimensions and weight specifications. Note: This item is non-refundable and non-cancellable.

Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)