800M4QT
Antisiphon Pressure Vacuum Breaker Backflow Preventers with Freeze Sensor
Series 800M4QT 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. 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
- 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
- Compact and designed for easy maintenance
- Test cocks are positioned for easy testing and winterization
- Bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, and a lightweight plastic disc float
Literature
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- 800M4QT, LF800M4QT, 800M4FR, LF800M4FR - Repair Kits Parts Breakdown
- 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 - 800M4QT
- Specification Sheet - 800M4QT (French)
- Specification Sheet - 800M4QT (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 |