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 signal facility personnel when temperature nears and reaches the freezing point. Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures.
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
- Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures
- 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 for Vacuum Breakers
- Flyer - Freeze Detection for Vacuum Breakers (French)
- 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 - Freeze Sensor Connection Kit
- Specification Sheet - Freeze Sensor Connection Kit (French)
- 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 |