LF909 Large
Lead Free* Reduced Pressure Valve Assembly Backflow Preventers - Large Diameter 2-1/2 - 10 Inch Sizes
Series LF909 Large reduced pressure valve assembly backflow preventer is designed to prevent the reverse flow of liquids in a plumbing system due to backpressure or backsiphonage where there is a potential health hazard. An exclusive relief valve design provides substantially improved relief valve discharge performance during emergency conditions of combined backsiphonage and backpressure. The seats are replaceable for economical repair. These large diameter backflow preventers are available in 2-1/2 to 10 inch sizes.
Series LF909 is also available with SentryPlus™ Alert technology to detect catastrophic relief valve discharge that could potentially cause flooding, and issue a multi-channel alert (call, email, text) to selected users so they can take action to avoid potentially costly flooding.
The coating on this backflow assembly uses ArmorTek™ technology to resist corrosion due to microbial induced corrosion (MIC) or exposed metal substrate.
Features
- Health hazard protection level
- Exclusive relief valve design provides maximum capacity during emergency conditions
- Industrial strength sensing hose on larger size models
- Available with SentryPlus Alert™ Technology for flood detection alert capabilities
- Can be used in a variety of installations, including containment at the service line entrance
- No special tools required for servicing
- The valve body shall utilize a coating system with built in electrochemical corrosion inhibitor and microbial inhibitor
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Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:
| ASSE | CSA | FM Approvals | NSF |
| UL | ULC | USC | WQA |