2 007M1DCDA-LF-GPM
Item Number: 0062728Brand - Watts
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- Size: 2 inch
- Weight: 75.0 lb
- Body Material: Cast Bronze ASTM B584
- Maximum Working Pressure: 175 psi
- Bypass Meter: 5/8 inch x 3/4 inch Totalizing Gallons/Minute Water Meter
- Includes freeze sensor for temperature monitoring
- In-line serviceable assembly requiring no special tools
- Detects potential underground water leaks and unauthorized water usage
- Configuration: Less Shutoff Valves (LF), not an approved assembly
Description
Description
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Main Line Connections
- This 2 inch double check detector assembly features flanged connections on the main valve body, typically compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.
- NOTE: This specific configuration ("LF" - Less Shutoff Valves) does not include OS&Y gate valves.
Freeze Sensor Connection
- An add-on connection kit (sold separately) is required to activate the included freeze sensor and enable its monitoring capabilities. Without this kit, the sensor functions passively.

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Additional Details
The Watts Series 007M1DCDA 2 inch Double Check Detector Assembly is engineered to protect potable water systems from backpressure and backsiphonage in non-health hazard applications, primarily for commercial fire sprinkler systems where local codes mandate such protection.
This particular model, designated LF-GPM, features a gallons-per-minute (GPM) meter on the auxiliary bypass line and is supplied without shutoff valves. It includes an exterior freeze sensor designed to monitor temperature and alert personnel to potential freeze conditions, though a connection kit (sold separately) is required for activation.
WARNING: This "Less Shutoff Valves (LF)" configuration is not an approved assembly. The freeze sensor solely provides alerts about a possible freeze event and cannot prevent freezing; user action is required. The freeze sensor does not replace compliance with all required installation, operation, and maintenance codes for backflow preventers.
Main Valve Features
- Compact design for ease of installation and in-line serviceability.
- Requires no special tools for servicing.
- Features captured modular spring-loaded checks and field replaceable seats and discs.
Auxiliary Bypass Features
- Includes a 5/8 inch x 3/4 inch water meter that complies with ANSI/AWWA Standard C700, detecting potential underground water leaks and unauthorized water usage.
- The bypass line and components are field replaceable.
Freeze Sensor Features
- Detects low and freezing temperatures, triggering alerts when activated by a connection kit (sold separately).
- Equipped with built-in Wi-Fi functionality to communicate freeze alerts directly to the user without a third-party controller.
- The standalone sensor provides flexibility in its placement near water-carrying outdoor installations vulnerable to freezing.
Specifications
General
- Size: 2 inch
- Weight: 85 lb (38.6 kg)
- Configuration: Less Shutoff Valves (LF), Gallons/Minute Meter (GPM)
- Bypass Meter: 5/8 inch x 3/4 inch Totalizing Gallons/Minute Water Meter (ANSI/AWWA C700 Compliant)
- Assembly Flow Orientation: Horizontal, Vertical Up
Materials
- Body Material: Cast Bronze ASTM B584
- Elastomers: Silicone
- O-rings: EPDM
- Check Modules: Engineered plastics
Pressure Ratings
- Maximum Working Pressure: 175 psi
- Minimum Working Pressure: 10 psi
- Hydrostatic Test Pressure: 350 psi
- Hydrostatic Safety Pressure Rating: 700 psi
Temperature Ratings
- Continuous Operating Range: 33°F - 110°F (0.5°C – 43°C)
- Intermittent Operating Range: Up to 140°F (60°C) (Must not exceed 12-hour duration)
Certificates & Approvals
- NOTE: This specific "Less Shutoff Valves (LF)" configuration is identified as a non-approved assembly per Watts documentation. General approvals for the 007M1DCDA series include:
- Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California
- ASSE 1048 Listed (For 007M1DCDA series)
- UL Classified (US & Canada) (For 007M1DCDA series)