957
Reduced Pressure Valve Assembly Backflow Preventers with Flood Sensor - Sizes 2 1/2 to 10 IN
957
Reduced Pressure Valve Assembly Backflow Preventers with Flood Sensor - Sizes 2 1/2 to 10 IN
Features
- Sensor on the relief valve for flood detection
- Extremely compact and lightweight design is easy to install and service
- Bottom-mounted cast stainless steel relief valve. Replaceable check disc rubber
- Patented torsion spring checks provide lowest pressure loss
- Health hazard protection level
- Integrates with the Sensor Control Monitor to deliver maintenance alerts to BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity
Series 957 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 or for containment at the service line entrance. Its compact modular design facilitates maintenance and assembly access. Check with local water authorities for installation requirements.
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 - Connected Backflow Flood Detection
Learn how Watts flood sensors integrated with backflow prevention assemblies provide real-time alerts for excessive relief valve discharge, helping prevent water damage and facility downtime.
Runtime : 00:01:10Watch Now
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 : 00:02:18Watch Now
Video - Flood Protection with SentryPlus Alert Technology
SentryPlus promo video
Runtime : 00:01:33Watch Now
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific 957
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| Model | Used On - Series or Model | Kit Contents |
|---|---|---|
|
FP-BF-BMS 2 1/2-10
Activation Kit |
</br>009, LF009, 909, LF909, 909RPDA, LF919, 957, 957RPDA, LF957RPDA, 994, 994RPDA, C400, C500, LFC500, 4000SS, 5000SS</br> |
Sensor Activation Module with Cable, Ground Wire, Power Adapter</br> |
|
FP-BF-CFS 2 1/2-10
Activation Kit |
</br>009, LF009, 909, LF909, 909RPDA, LF919, 957, 957RPDA, LF957RPDA, 994, 994RPDA, C400, C500, LFC500, 4000SS, 5000SS</br> |
Sensor Activation Module with Cable, Cellular Gateway with Mounting Kit, Ground Wire, Power Adapter</br> |
|
FP-BF-SA-994/957/AMES-2 1/2-12
Upgrade/Repair Kit |
</br>994, 994RPDA, 957, 957RPDA, LF957RPDA, 4000SS, 5000SS, C400, C500, LFC500</br> |
Flood Sensor with 2 Mounting Bolts</br> |
|
RK 957/957RPDA-C 2 1/2-4
Check Sleeve Cover Kit |
</br>957, 957RPDA</br> |
Closure Sleeve, Sleeve O-ring, Gasket</br> |
|
RK 957/957RPDA-CK2 2 1/2-4
Second Check Kit |
</br>957, LF957RPDA, 957RPDA</br> |
Second Check Module, Check Module O-ring, EPDM Disc Elastomer</br> |
|
RK 957/957RPDA-RC4 2 1/2-4
Check Rubber Parts Kit |
</br>957, 957RPDA</br> |
Check Module O-ring, EPDM Disc Elastomer, E-Clip</br> |
|
RK 957/957RPDA-RT 2 1/2-4
Complete Rubber Parts Kit |
</br>957, LF957RPDA, 957RPDA</br> |
First and Second Check Module O-rings, 2 EPDM Disc Elastomers, 2 E-Clips, Relief Valve Diaphragm, Relief Valve Inlet Coupler O-ring, Relief Valve Piston Assembly</br> |
|
RK 957/957RPDA-RV
Relief Valve Rubber Parts Kit |
</br>957, LF957RPDA, 957RPDA</br> |
Diaphragm, Inlet Coupler O-ring, Piston Assembly</br> |
|
RK 957/957RPDA-VT
Total Relief Valve Kit |
</br>957, LF957RPDA, 957RPDA</br> |
Complete Relief Valve Assembly</br> |
|
RK 957/RPDA-CK1-RS
First Check Kit |
</br>957, 957RPDA</br> |
First Check Module, Check Module O-ring, Red Silicone Disc Elastomer</br> |
|
RK 957/RPDA-CK2-RS
Second Check Kit |
</br>957, 957RPDA</br> |
Second Check Module, Check Module O-ring, Red Silicone Disc Elastomer</br> |
|
RK 957/RPDA-RC4-RS
Check Rubber Parts Kit |
</br>995, 995RPDA</br> |
Check Module O-ring, Red Silicone Disc Elastomer, E-Clip</br> |
|
RK 957-957RPDA-CK1
First Check Kit |
</br>957, LF957RPDA, 957RPDA</br> |
First Check Module, Check Module O-ring, EPDM Disc Elastomer</br> |
|
RK957/RPDA-RT-RS
Complete Rubber Parts Kit |
</br>957, 957RPDA</br> |
First and Second Check Module O-rings, 2 Red Silicone Disc Elastomers, 2 E-Clips, Relief Valve Diaphragm, Relief Valve Inlet Coupler O-ring, Relief Valve Piston Assembly</br> |
|
RK 957/957RPDA-C 6
Check Sleeve Cover Kit |
</br>957, 957RPDA</br> |
Closure Sleeve, Sleeve O-ring, Gasket</br> |
|
RK 957/957RPDA-CK1 6
First Check Kit |
</br>957, 957RPDA</br> |
First Check Module, Check Module O-ring, EPDM Disc Elastomer</br> |
|
RK 957/957RPDA-CK1-RS
First Check Kit |
</br>957, 957RPDA</br> |
First Check Module, Check Module O-ring, Red Silicone Disc Elastomer</br> |
|
RK 957/957RPDA-CK2 6
Second Check Kit |
</br>957, 957RPDA</br> |
Second Check Module, Check Module O-ring, EPDM Disc Elastomer</br> |
|
RK 957/957RPDA-CK2-RS
Second Check Kit |
</br>957, 957RPDA</br> |
Second Check Module, Check Module O-ring, Red Silicone Disc Elastomer</br> |
|
RK 957/957RPDA-RC4 6
Check Rubber Parts Kit |
</br>957, 957RPDA</br> |
Check Module O-ring, EPDM Disc Elastomer, E-Clip</br> |
|
RK 957/957RPDA-RT 6
Complete Rubber Parts Kit |
</br>957, 957RPDA</br> |
First and Second Check Module O-rings, 2 EPDM Disc Elastomers, 2 E-Clips, Relief Valve Diaphragm, Relief Valve Inlet Coupler O-ring, Relief Valve Piston Assembly</br> |
|
RK 957/957RPDA-RT-RS
Complete Rubber Parts Kit |
</br>957</br> |
First and Second Check Module O-rings, 2 Red Silicone Disc Elastomers, 2 E-Clips, Relief Valve Diaphragm, Relief Valve Inlet Coupler O-ring, Relief Valve Piston Assembly</br> |
|
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> |
|
FP-RFK-BF-BMS-CFS 2 1/2-10
Activation Kit |
</br>957, 957RPDA, LF957RPDA, 994, 994RPDA, C400, C500, LFC500, 4000SS, 5000SS</br> |
Flood Sensor, Sensor Activation Module with Cable, Ground Wire, Power Adapter</br> |
|
FP-RFK-BF-CFS 2 1/2-10
Activation Kit |
</br>957, 957RPDA, LF957RPDA, 994, 994RPDA, C400, C500, LFC500, 4000SS, 5000SS</br> |
Flood Sensor, Sensor Activation Module with Cable, Cellular Gateway with Mounting Kit, Ground Wire, Power Adapter</br> |
|
RK 957/957RPDA-C 8
Check Sleeve Cover Kit |
</br>957, 957RPDA</br> |
Closure Sleeve, Sleeve O-ring, Gasket</br> |
|
RK 957/957RPDA-CK1 8
First Check Kit |
</br>957, 957RPDA</br> |
First Check Module, Check Module O-ring, Red Silicone Disc Elastomer</br> |
|
RK 957/957RPDA-CK2 8
Second Check Kit |
</br>957, 957RPDA</br> |
Second Check Module, Check Module O-ring, Red Silicone Disc Elastomer</br> |
|
RK 957/957RPDA-RC4 8
Check Rubber Parts Kit |
</br>957, 957RPDA</br> |
Check Module O-ring, Red Silicone Disc Elastomer, E-Clip</br> |
|
RK 957/957RPDA-RT 8
Complete Rubber Parts Kit |
</br>957, 957RPDA</br> |
First and Second Check Module O-rings, 2 Red Silicone Disc Elastomers, 2 E-Clips, Relief Valve Diaphragm, Relief Valve Inlet Coupler O-ring, Relief Valve Piston Assembly</br> |