LF850 Small
Features
- Includes a freeze sensor for use with SentryPlus Alert technology to signal facility personnel when temperature nears and reaches the freezing point
- Compact modular design to facilitate maintenance and in-line repairs with a single access cover
- In-line serviceable assembly requiring no special tools
- Two in-line independent positive seating check modules
- Replaceable seats and seat discs
- Freeze alerts feature available with add-on connection kit for Wi-Fi networks, building management systems (BMS), and irrigation management systems (IMS)
Series LF850 Small double check valve assembly backflow preventers include a freeze sensor for use with SentryPlus Alert® technology to signal facility personnel when temperature nears and reaches the freezing point. Freeze alerts feature available with add-on connection kit for Wi-Fi networks, building management systems (BMS), and irrigation management systems (IMS).
This series is designed to prevent the backflow of polluted water from entering the potable water supply due to backsiphonage and or backpressure. Features lead free body construction, NPT end connections, top mounted test cocks, and quarter turn ball valve shutoffs.
To learn more visit: https://www.watts.com/freeze-detection
Literature
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF850 Small
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| Model | Product Used On - Series or Model | Kit Contents |
|---|---|---|
|
FP-FBF-BMS-IMS-FZ
Activation Kit |
</br>765, 850 Small, LF850 Small</br> |
Freeze Sensor in Mounting Clip, Activation Module with Mounting Hardware, 2 Wire Nuts, Power Adapter</br> |
|
FRK 850/850U/860/860U/880-RC3 1/2-3/4
Check Module Rubber Kit |
</br>850, 850U, 860, 860U, 880</br> |
2 Seat O-rings, 2 Seat Discs, Cover O-ring, Tail O-ring</br> |
|
FRK 860/860U/880-RV 1/2-1
Relief Valve Rubber Parts Kit |
</br>860, 860U, 880</br> |
2 Slip Rings, Outer Diaphragm, Diaphragm, Seat Disc, Seat Ring, Gasket</br> |
|
FP-FBF-WiFi/BMS/IMS-FZ
Activation Kit |
</br>765, 850 Small, LF850 Small</br> |
Freeze Sensor in Mounting Clip, Standalone Sensor, Activation Module, 2 Wire Nuts, Mounting Hardware, Power Adapter, Quick Start Guide</br> |
|
FRK 860/860U/880-VT 1/2-1
Relief Valve Kit |
</br>860, 860U, 880</br> |
Cover and Diaphragm Assembly, Spring, Seat Ring, Gasket</br> |
|
FRK 850/850U/860/860U/880-RC3 1 1/4-2
Check Module Rubber Kit |
</br>850, 850U, 860, 860U, 880</br> |
2 Seat O-rings, 2 Seat Discs, Cover O-ring, Tail O-ring</br> |
|
FRK 860/860U/880-RV 1 1/4-2
Relief Valve Rubber Parts Kit |
</br>860, 860U, 880</br> |
2 Slip Rings, Outer Diaphragm, Diaphragm, Seat Disc, Seat Ring, Gasket</br> |
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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. Some certification agencies allow you to search by product name and brand.