3/4 LF007M3-QT-FZ
Item Number: T063231Brand - Watts
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- Size: 3/4 inch
- Weight: 5.05 lb
- Connection Type: NPT
- Body Material: Lead Free* Cast Copper Silicon Alloy
- Maximum Operating Pressure: 175 PSI
- Features: Freeze Sensor with SentryPlus Alert® compatibility
- Design: Modular, compact for easy maintenance
- Corrosion Resistance: ArmorTek coating on internal and external surfaces
- Approvals: ASSE 1015, AWWA C510, IAPMO PS31, CSA B64.5, UPC
Description
Description
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This Watts LF007M3-QT-FZ double check valve backflow preventer features NPT end connections for easy installation into existing piping systems.
Compatibility
- Designed for installation at cross-connections identified as non-health hazards.
- Suitable for continuous pressure piping applications.
- Can be installed in both horizontal and vertical "flow up" orientations.
- The integral freeze sensor connects to an optional connection kit (sold separately) to enable communication with Wi-Fi networks, Building Management Systems (BMS), or Irrigation Management Systems (IMS).

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Additional Details
This 3/4 inch lead free double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage or backpressure in accordance with national plumbing codes and water authority requirements.
Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards and for contaminants at the service line entrance.
Components
- Lead Free* cast copper silicon alloy body construction
- NPT end connections
- Quarter turn ball valve shutoffs
- Top mounted test cocks
- Two in-line independent positive seating check modules
- Captured springs
- Replaceable check discs and seats
Freeze Sensor Features
- Includes 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 triggers alerts for low and freezing temperatures.
- Freeze alerts feature available with an add-on connection kit for Wi-Fi networks, building management systems (BMS), and irrigation management systems (IMS).
WARNING: The freeze sensor solely provides alerts about a possible freeze event and cannot prevent a freeze event from occurring. User action is required to prevent freeze conditions from causing product and/or property damage.
Specifications
- Nominal Size: 3/4 inch
- Connection Type: NPT
- Body Material: Lead Free* cast copper silicon alloy
- Coating: ArmorTek powder coating, applied to internal and external surfaces
- Check Module: Captured spring and rubber seat disc
- Access Cover Bolts: Stainless steel
- Shutoff Type: Quarter Turn Ball Valves
- Special Feature: Freeze Sensor (SentryPlus Alert® compatible)
Performance
- Temperature Range: 33°F – 180°F (0.5°C – 82°C)
- Maximum Working Pressure: 175 psi (12.1 bar)
Dimensions
- Overall Length: 11 1/8 inches (282 mm)
- Weight: 5.0 lbs (2.3 kg)
Certificates & Approvals
- ASSE Standard 1015
- AWWA Standard C510
- IAPMO PS31
- CSA B64.5
- ASSE, AWWA, IAPMO, CSA, UPC
- Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
- UL Classified (without shutoff valves, 3/4" to 2")
- Horizontal and vertical "flow up" approval on all sizes