LF800M4FR
Lead Free* Freeze Resistant Pressure Vacuum Breaker Backflow Preventers with Freeze Sensor
Series LF800M4FR Lead Free* freeze resistant pressure vacuum breakers 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 prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. Ideal for continuous pressure health hazard applications where exposure to sudden freezing conditions can occur in irrigation systems and industrial process water systems. Maximum Pressure: 150 psi (10.3 bar), Minimum Pressure: 15 psi (55kPa).
To learn more visit: https://www.watts.com/freeze-detection
Features
- Sensor on PVB signals when temperature nears the freezing point
- Freeze alerts help extend use of the PVB device by reducing damage and repair
- Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures
- Unique built-in relief valve in plastic float protects assembly during sudden freeze conditions by relieving pressure caused by ice
- Replaceable plastic seat
- Test cocks are positioned for easy testing and winterization
- O-ring bonnet seal reduces possibility of fouling
- Lead Free cast copper silicon alloy body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, and a lightweight plastic disc float
- Freeze alerts feature available with add-on connection kit for Wi-Fi networks, building management systems (BMS), and irrigation management systems (IMS)
Literature
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- 800M4QT, LF800M4QT, 800M4FR, LF800M4FR - Repair Kits Parts Breakdown
- Brochure - Backflow Prevention and Flow Control for Waterworks
- Brochure - Backflow Prevention and Flow Control Plumbing
- Flyer - Freeze Detection for Backflow Protection
- Installation Instructions - 800M4QT, LF800M4, 800M4FR, LF800M4FR
- Installation Instructions - Freeze Sensor Connection Kit - Watts and FEBCO
- Price List - Backflow Prevention Repair Kits & Service Parts
- Specification Sheet - Freeze Sensor Connection Kit
- Specification Sheet - Freeze Sensor Connection Kit (French)
- Specification Sheet - Freeze Sensor Connection Kit (Spanish)
- Specification Sheet - LF800M4FR
- Specification Sheet - LF800M4FR (French)
- Specification Sheet - LF800M4FR (Spanish)
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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 |