Watts 88004110 Valve

The Watts 88004110 LF009-QT-FS 1/2" Reduced Pressure Zone Backflow Preventer Assembly is a high-performance solution for protecting potable water supplies from high-hazard cross-contamination. This lead-free RPZ valve serves as the direct replacement for Watts 0391002, featuring a lead-free copper silicon alloy body for maximum corrosion resistance and compliance with plumbing codes. Designed for high-risk applications, this assembly prevents both backsiphonage and backpressure. The integrated SentryPlus Alert flood sensor allows for real-time monitoring of relief valve discharge when paired with a BMS or cellular kit, mitigating potential flood damage in mechanical rooms. With a pressure rating of 175 PSI and a temperature range of 33°F to 180°F, this assembly utilizes quarter-turn ball valve shutoffs and modular check construction for simplified in-line maintenance. Its compact design and replaceable check seats ensure long-term serviceability in commercial or residential piping systems.

Key Technician Benefits

• Direct Replacement: Seamlessly replaces legacy model 0391002 with identical 1/2" NPT footprint.
• Health Hazard Protection: Certified for high-hazard installations where reduced pressure zone (RPZ) protection is mandated by local water authorities.
• Flood Mitigation: Pre-installed flood sensor detects excessive relief valve discharge to protect your facility from catastrophic water damage.
• Serviceability: Features a single access cover and modular check construction for rapid field repairs without removing the valve from the line.
• Lead-Free Construction: Exceeds all industry standards for safe potable water backflow prevention.

Common Contractor Questions

Is the Watts 88004110 suitable for high-hazard installations?
Yes, as a Reduced Pressure Zone (RPZ) assembly, it is engineered specifically for high-hazard cross-connections where contamination could pose a significant health risk.

Does this model include a flood sensor?
Yes, it comes with an integrated SentryPlus Alert flood sensor. To activate remote alerts, you must purchase a separate BMS or cellular sensor connection kit.

Can I repair the internal components without replacing the whole valve?
Absolutely. The LF009-QT-FS series utilizes replaceable check seats and captured springs, allowing for easy maintenance using standard Watts repair kits.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.