Watts LF909-QT 3/4 cutaway - Part of the LF909 Small Series
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This 3/4 inch lead free reduced pressure zone backflow preventer assembly with its exclusive design incorporating the patented air-in and water-out principle for protection during an emergency condition prevents the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance for in-line repairs. It can be installed horizontal or vertical without the need of any special tools. It is ideal for protection in continuous pressure piping applications, at cross-connections identified as health hazards and from contaminants found at the service line entrance. This assembly consists of a bronze body, QT ball valve shutoffs with tee handles, check modules, replaceable seats, top mounted test cocks, and a pressure differential relief valve. This valve is cut away to display the internals for training/display purposes.
Features- Lead free bronze body
- Unique patented air-in and water-out design provides high capacity relief valve discharge performance during emergency conditions
- Compact for easy installation
- Quarter-turn ball valves with tee handles
| Specifications | |
|---|---|
| Backflow Preventer Type | Reduced Pressure Zone Assembly |
| Body Finish | Cast Bronze |
| Body Material | Lead Free Bronze |
| Body Pattern | Y-Pattern |
| Brand | Watts |
| Bypass | No |
| Bypass Size | Does Not Apply To Product |
| Cap And Tether | No |
| Disc Material | Silicone |
| EAN | 098268180022 |
| Elbow Fitting | No |
| Hazard Protection Level | Health Hazard |
| Hot And Harsh Water | No |
| Hydrant Connection | No |
| Inlet Connection Size | 3/4 IN |
| Inlet Connection Size-Metric | 20 MM |
| Inlet Connection Type | Female Threaded |
| Inlet Shutoff Valve Type | Ball Valve |
| Inlet Thread Type | NPT |
| Lead Free | YES |
| Maximum Temperature-Fahrenheit | 140 |
| Maximum Working Pressure-BAR | 12.10 |
| Maximum Working Pressure-PSI | 175 |
| Meter Type | Does Not Apply To Product |
| Minimum Temperature - Celsius | 0.50 |
| Minimum Temperature-Fahrenheit | 33 |
| Outlet Connection Size | 3/4 IN |
| Outlet Connection Type | Female Threaded |
| Outlet Shutoff Valve Type | Ball Valve |
| Outlet Thread Type | NPT |
| Part Number | 88007281 |
| Polymer Coating | No |
| Pressure Operation | Continuous |
| Protection Type | Backpressure and Backsiphonage |
| Seat Material | Engineered Plastic |
| Series | LF909 Small |
| Strainer | No |
