Description
The Watts F391009 LF909-QT-FS is a 1-inch lead-free reduced pressure zone (RPZ) backflow preventer assembly engineered to protect potable water systems from contamination caused by back-siphonage and backpressure. Built to meet stringent lead-free compliance standards, this assembly is suitable for use in commercial, industrial, and institutional plumbing and hydronic systems wherever cross-connection control is required.
Key Features
- Lead-free construction meets federal and state lead-free requirements for potable water applications
- Reduced pressure zone (RPZ) design provides the highest level of backflow protection against both back-siphonage and backpressure
- Quick-test (QT) shutoff valves integrated for fast, convenient field testing without additional tools
- Full-port shutoff valves (FS) allow unrestricted flow and easy system isolation
- 1-inch pipe size for compatibility with standard commercial and residential water supply lines
- Durable, corrosion-resistant body materials suited for long service life
- Designed for straightforward installation in horizontal or vertical configurations
Application
The LF909-QT-FS is ideal for protecting potable water supplies in commercial buildings, irrigation systems, fire suppression connections, boiler make-up water lines, and industrial process piping. Its RPZ design ensures that even in the event of a pressure failure, contaminants cannot enter the drinking water supply.
Compliance & Standards
- Lead-free compliant per federal Safe Drinking Water Act requirements
- Designed to meet ASSE 1013, AWWA C511, and CSA B64.4 standards for reduced pressure principle backflow preventers
- Suitable for use in jurisdictions requiring third-party certified backflow prevention assemblies
Product Specifications
- Brand: Watts
- SKU / Part Number: F391009
- Model: LF909-QT-FS
- Connection Size: 1 inch
- Type: Reduced Pressure Zone (RPZ) Backflow Preventer
- Construction: Lead-Free
- Shutoff Valve Style: Quick-Test Full-Port (QT-FS)
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