909RPDA-FS

Reduced Pressure Detector Assembly Backflow Preventers with Flood Sensor, Cast Iron, 2 1/2 - 10 Inch Sizes

Series 909RPDA-FS reduced pressure detector assembly backflow preventers are designed to prevent the reverse flow of fire protection system substances from being pumped or siphoned into the potable water supply. This series incorporates a meter to detect ground leaks and unauthorized illegal taps, greatly reducing annual water expenses. This backflow preventer assembly provides maximum flow at low pressure drop utilizing the air-in/water-out design principle for protection during emergency combined backsiphonage and backpressure conditions. Maximum working pressure is 175 psi (12.06 bar).

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/LF909FS

Features

Flood alert feature available with add-on connection kit, compatible with BMS and cellular communication
Provide detection point for costly water leaks and illegal taps
Unique two-channel relief valve provides maximum capacity during emergency conditions and stops potential backflow using air-in/water-out principle
Modular design facilitates easy maintenance and assembly
Replaceable stainless steel seats
Integrated sensor on relief valve for flood detection
Alert features available with add-on sensor connection kit
Coated with advanced ArmorTek coating technology for 6x less surface rusting

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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