850 Small
In-Line Design Double Check Valve Assembly Backflow Preventers with Freeze Sensor - Small Diameter
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)
FEBCO Series 850 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 for non-health hazard applications, to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements for non-potable service applications such as irrigation, fire line, or industrial processing. Standard assembly with ball valves or union end ball valves. End connections: NPT ANSI / ASME B1.20.1. Sizes 1/2 to 2 IN.
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 850 Small
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| Model | Product Used On | Kit Contents |
|---|---|---|
|
FP-FBF-BMS-IMS-FZ
Activation Kit |
</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 1/4-2
Check Module Rubber Kit |
</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> |
2 Slip Rings, Outer Diaphragm, Diaphragm, Seat Disc, Seat Ring, Gasket</br> |
|
FRK 850/850U/860/860U/880-RC3 1/2-3/4
Check Module Rubber Kit |
</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> |
2 Slip Rings, Outer Diaphragm, Diaphragm, Seat Disc, Seat Ring, Gasket</br> |
|
FP-FBF-WiFi/BMS/IMS-FZ
Activation Kit |
</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> |
Cover and Diaphragm Assembly, Spring, 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.