LF850 Small
Lead Free* Double Check Valve Assembly Backflow Preventers with Freeze Sensor - Small Diameter
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 building management systems (BMS), irrigation management systems (IMS), and Wi-Fi networks.
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
Features
- Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures
- 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
Literature
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- Brochure - Backflow Prevention - Cross-Connection Control Handbook
- Installation Instructions - 850 Small, LF850 Small - Sizes 1/2 - 2 IN
- Installation Instructions - BMS/IMS Freeze Sensor Connection Kit - FEBCO
- Maintenance Manual - Freeze Protection Instructions - 850 Small, LF850 Small, 860 Small, LF860 Small
- Specification Sheet - Freeze Sensor Connection Kit
- Specification Sheet - Freeze Sensor Connection Kit (French)
- Specification Sheet - LF850 Small - Sizes 1/2 - 2 IN
- Specification Sheet - LF850 Small - Sizes 1/2 - 2 IN (Spanish)
- Specification Sheet -LF850 Small - Sizes 1/2 - 2 IN (French)
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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 |