2" Double Check Detector Valve With BFV Supply Switch by Zurn Wilkins

The 2" Double Check Detector Valve with BFV Supply Switch by Zurn Wilkins functions as an essential backflow prevention assembly engineered specifically for commercial and industrial fire protection networks. Installed within wet or dry fire sprinkler systems, this assembly protects municipal potable water supplies by preventing dangerous backflow conditions and identifying leaks or contamination risks. Dual check valves operate continuously to secure system integrity, while the integrated continuous detector mechanism monitors unauthorized water flow in real time to ensure prompt detection and response.

This assembly satisfies stringent life safety requirements and regulatory mandates by maintaining compliance with NFPA 13 and NFPA 25 standards. It delivers verified operational reliability for fire protection contractors and facility managers during routine inspections, maintenance shutdowns, and emergency isolation events.

• High-Strength Iron Alloy Body: Built with a durable iron alloy exterior combined with 300-series stainless steel internal components to provide superior corrosion resistance in demanding fire protection environments.
• Dual Check Valves: Prevents reverse flow and safeguards potable water supplies against contamination or backpressure incidents.
• Integrated Butterfly Valve Supply Switch: Facilitates manual system isolation for servicing and emergency shutdowns without compromising the wider sprinkler network.
• EPDM Valve Seats: Delivers dependable, leak-free sealing across variable pressure parameters to maintain consistent line integrity.
• Real-Time Flow Monitoring: Continuously tracks unauthorized water usage to satisfy backflow and leak detection demands.
• 175 PSI Pressure Rating: Rated for a maximum working pressure of up to 175 PSI (12.1 bar) for high-pressure commercial infrastructure.

Contractors and facility managers must verify all local Authority Having Jurisdiction (AHJ) mandates and consult the manufacturer technical data sheets before commencing installation to ensure complete site compliance.

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