LF800M4QT
Lead-Free* Antisiphon Pressure Vacuum Breaker Backflow Preventers with Freeze Sensor, Sizes: 1/2 IN - 2 IN (15mm – 50mm)
Series LF800M4QT Lead-Free* antisiphon pressure vacuum breakers include a freeze sensor for use with SentryPlus Alert® technology to monitor temperature nearing the freezing point. The sensor is activated with the BMS/IMS Freeze Sensor Connection Kit to relay a signal to building or irrigation management systems, helping facility personnel take actions that reduce or eliminate PVB replacement and repair. Freeze alerts are distributed according to the BMS/IMS application.
This series is ideal for health hazard continuous pressure applications, such as irrigation systems and industrial process water systems, when exposure to sudden freezing occurs where water enters the equipment at or below its flood rim.
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
- Freeze alerts feature available with add-on connection kit for irrigation management systems
- Health hazard protection level
- Acetal bonnet acts as freeze plug to prevent body damage
- Seat disc is silicone rubber for durability, and an O-ring bonnet seal resists fouling
- Readily accessible test cocks for testing and winterization
- Designed for ease of maintenance with a replaceable plastic seat
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
- Installation Instructions - 800M4QT, LF800M4, 800M4FR, LF800M4FR
- Installation Instructions - BMS/IMS Freeze Sensor Connection Kit - Watts
- Price List - Backflow Prevention Repair Kits & Service Parts
- Specification Sheet - LF800M4QT
- Specification Sheet - LF800M4QT (French)
- Specification Sheet - LF800M4QT (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 |