LF909-FS Large

Lead Free* Reduced Pressure Valve Assembly Backflow Preventers with Flood Sensor - Large Diameter 2-1/2 - 10 Inch Sizes

Series LF909-FS 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. These large diameter backflow preventers are available in 2-1/2 to 10 inch sizes.

The coating on this backflow assembly uses ArmorTek™ technology to resist corrosion due to microbial induced corrosion (MIC) or exposed metal substrate.

This series features an integrated flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. Activated through an add-on connection kit, the sensor can trigger the alert system sending notification of flood detection to facility personnel. Connection kits are available for BMS and cellular communication.

To learn more visit: https://www.watts.com/floodprotectionsystem/

Features

Integrated sensor on relief valve for flood detection
Flood alert feature available with add-on connection kit, compatible with BMS and cellular communication
Coated with advanced ArmorTek coating technology for 6x less surface rusting
Health hazard protection level
Exclusive relief valve design provides maximum capacity during emergency conditions
Industrial strength sensing hose on larger size models
Can be used in a variety of installations, including containment at the service line entrance
No special tools required for servicing

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Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) 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