LF825Y
LF825Y
Features
- Sensor on relief valve for flood detection
- Flood alerts feature available with add-on connection kit, compatible with BMS and cellular communication
- Ultimate mechanical protection of potable water against cross-connection contamination of high hazard (toxic) fluids in water services
- Used in industrial plants, hospitals, morgues, mortuaries, chemical plants, irrigation systems, boiler feed, water lines, and other installations
- Meets all specifications of AWWA, ASSE, CSA and approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
- Modular relief valve for ease of maintenance
- Lead Free bronze body and threaded ball valve shutoffs
- Integrates with the Sensor Control Monitor to deliver maintenance alerts to BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity
Nexa pairs integrated sensing hardware with free, upgradable software to empower facilities with unprecedented visibility and control over their water systems, helping teams protect assets, deliver consistent performance, and drive measurable ROI.
Learn more about Nexa
Series LF825Y Lead Free* Y Pattern Reduced Pressure Zone assemblies feature a flood sensor using SentryPlus Alert® technology to detect continuous discharge from the relief valve. When paired with an add on connection kit, the sensor is activated to relay alerts for potential flooding events. Connection kit options include BMS, cellular communication, and the Sensor Control Monitor which enables integration with BAS via RS‑485 Modbus or the Nexa® platform through Wi-Fi.
This series prevents the reverse flow of contaminated water caused by backsiphonage or backpressure from entering the potable water supply. Ideal for protection at health hazard cross-connections in water services to industrial plants, hospitals, morgues, mortuaries, and chemical plants. Applications also extend to irrigation systems, boiler feeds, water lines, and other installations requiring maximum protection. Maximum working pressure: 175 psi (12.1 bar).
To learn more visit: https://www.watts.com/floodprotectionsystem
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. Some certification agencies allow you to search by product name and brand.
Literature
Video - How to Activate Your Flood Detection System
Learn how to quickly register, activate, and test your SentryPlus Flood Sensor Upgrade Kit using the Syncta platform for seamless automated flood protection and customizable alerts.
Runtime : Watch Now
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF825Y
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| Model | Used On - Series or Model | Kit Contents |
|---|---|---|
|
SCM-BF-CONN KIT
Activation Kit |
</br>Watts 009/LF009, LF909, LF919, 909RPDA, 957, 957RPDA, 994, 994RPDA; Ames C400, C500, 5000SS, 4000SS, FEBCO LF860, 825Y, LF825Y, LF866, LF880V, LF886V</br> |
Sensor Control Monitor, Power Adapter, Mounting Feet, and Quick Start Guide</br> |
|
825Y SS INLET SPRING 3/4 - 1 1/4
First Check Spring-Inlet |
</br>825Y, 825YS, 825YA, 825YR, 825YAR, 825YAR, LF825Y, LF825YA</br> |
Inlet Spring</br> |
|
825Y/805Y SS OUTLET SPRING 3/4 - 1 1/4
Check Spring Kit |
</br>805Y, 805YB, 805YS, 825Y, 825YS, 825YA, 825YR, 825YAR, 825YAS, LF825Y, LF825YA</br> |
Outlet Spring</br> |
|
FP-RFK-FBF-BMS-CFS-825-3/4-2
Activation Kit |
</br>825Y, LF825Y, 825YA, LF825YA</br> |
2 Flood Sensors, Sensor Activation Module with Cable, Ground Wire, Power Adapter</br> |
|
FP-RFK-FBF-CFS-3/4-2
Activation Kit |
</br>825Y, LF825Y, 825YA, LF825YA</br> |
2 Flood Sensors, Sensor Activation Module with Cable, Cellular Gateway with Mounting Kit, Ground Wire, Power Adapter</br> |
|
FRK 825Y-RT 3/4-1 1/4
Complete Rubber Parts Kit |
</br>825Y</br> |
2 RV O-rings, Diaphragm, RV Seat Disc, 2 Seat Disc, 2 Cover, O-rings, 3 Bushings, RV Seat O-ring</br> |
|
FRK 825Y-RV 3/4-1 1/4
Relief Valve Rubber Parts Kit |
</br>825Y</br> |
2 O-rings, Diaphragm, Seat Disc</br> |
|
FRK 825Y-VS 3/4-1
Relief Valve Seat Ring Kit |
</br>825Y</br> |
Seat Ring, Seat Ring O-ring, Bushing, O-ring Seal</br> |
|
FRK 825Y-YS VT 3/4-1 1/4
Relief Valve Kit |
</br>825Y</br> |
Internal Spring/Disc Holder Assembly, Diaphragm</br> |
|
FRK805825Y-CK4 3/1-1 1/4
Single Check Kit |
</br>805, 825Y</br> |
Disc Holder Assembly, Cover O-ring</br> |
|
FRK805825Y-RC3 3/4-1 1/4
Check Rubber Parts Kit |
</br>805, 825Y</br> |
2 Seat Discs, 2 Cover O-rings</br> |
|
LFFRK 825-C 3/4-1
Cover Kit |
</br>825Y</br> |
Cover, Cover O-ring</br> |
|
LFFRK 825-VC 3/4-1
Repair Kit |
</br>825Y</br> |
Cover, Cover O-ring</br> |
|
LFFRK825Y-VS 3/4-1 1/4
Relief Valve Seat Ring Kit |
</br>LF825Y</br> |
</br> |
|
FP-FBF-BMS 1/2-2
Activation Kit |
</br>860 Small, LF860 Small, 825Y, LF825Y, LF860 Large, LF866, LF880V, LF886V</br> |
Sensor Activation Module with Cable, Ground Wire, Power Adapter</br> |
|
FP-FBF-CFS 1/2-2
Activation Kit |
</br>861 Small, LF860 Small, 825Y, LF825Y, LF860 Large, LF866, LF880V, LF886V</br> |
Sensor Activation Module with Cable, Cellular Gateway with Mounting Kit, Ground Wire, Power Adapter</br> |
|
FP-FBF-SA-825-3/4-1
Upgrade/Repair Kit |
</br>825Y, LF825Y, 825YA, LF825YA</br> |
Flood Sensor with Captive Screw</br> |
|
825Y SS INLET SPRING 1 1/2 - 2
First Check Spring-Inlet |
</br>825Y, 825YS, 825YS, 825YR, 825YAR, 825YAS, LF825Y, LF825YA</br> |
Inlet Spring</br> |
|
825Y/805Y SS OUTLET SPRING 1 1/2 - 2
Check Spring Kit |
</br>805Y, 805YB, 805YS, 805Y,825Y, 825YS, 825YA, 825YR, 825YAR, 825YAS, LF825Y, LF825YA</br> |
Outlet Spring</br> |
|
FP-FBF-SA-825-1 1/4-2
Upgrade/Repair Kit |
</br>825Y, LF825Y, 825YA, LF825YA</br> |
Flood Sensor with Captive Screw</br> |
|
FRK 805/825Y/825YA-CK4 1 1/2-2
Single Check Kit |
</br>805Y, 825Y, 825YA</br> |
Disc Holder Assembly, Cover O-ring</br> |
|
FRK 805/825Y/825YA-RC3 1 1/2-2
Check Rubber Parts Kit |
</br>805, 825Y</br> |
2 Seat Discs, 2 Cover O-rings</br> |
|
FRK 825Y/825YA-CKS 1 1/2-2
Check Valve Seat Ring Kit |
</br>805Y, 825Y</br> |
Seat Ring, O-ring</br> |
|
FRK 825Y-RT 1 1/2-2
Complete Rubber Parts Kit |
</br>825Y</br> |
2 RV O-rings, Diaphragm, RV Seat Disc, 2 Seat Disc, 2 Cover, O-rings, 3 Bushings, RV Seat O-ring</br> |
|
FRK 825Y-RV 1 1/2-2
Relief Valve Rubber Parts Kit |
</br>825Y</br> |
2 O-rings, Diaphragm, Seat Disc</br> |
|
FRK 825Y-YS VT 1 1/2-2
Relief Valve Kit |
</br>825Y, 825YS</br> |
Internal Spring/Disc Holder Assembly, Diaphragm</br> |
|
LFFRK 825-C 1 1/2-2
Cover Kit |
</br>825Y</br> |
Cover, Cover O-ring</br> |
|
LFFRK 825-VC 1 1/4-2
Repair Kit |
</br>825Y</br> |
Cover, Cover O-ring</br> |
|
LFFRK 825Y/825YA-CKS 1 1/2-2
Check Valve Seat Ring Kit |
</br>LF825Y</br> |
Seat Ring, O-ring</br> |