10 LF709-NRS-IOT
Item Number: 88003434Brand - Watts
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- 10 Inch size
- ArmorTek coated cast iron body
- Non-Rising Stem (NRS) shutoff valves
- Lead Free construction
- Maximum operating pressure: 175 PSI
- Integrated pressure-sensing test cocks
- Modular design for simplified maintenance
- Approved for vertical flow up installation
Description
Description
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This 10 inch Lead Free Double Check Valve Assembly is designed for non-health hazard installations where approved by local authorities. It prevents the reverse flow of polluted water into the potable water supply in continuous pressure piping applications.
Monitoring Connection
- The integrated pressure sensors on this IOT model require an add-on monitoring connection kit (sold separately) to collect and transmit data.
- The connection kit communicates via wired serial (RS-485) interface and is compatible with most Building Management Systems (BMS) and Building Automation Systems (BAS).
Always inquire with governing authorities for local installation requirements to ensure compliance.

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Additional Details
This 10 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of polluted water from entering into the potable water system. It is ideal for continuous pressure piping applications and cross-connections identified as non-health hazards, where approved by the local authority having jurisdiction.
Advanced Protection & Monitoring
- Features ArmorTek® coating technology, a patented three-part advanced epoxy system, engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrate.
- Equipped with Smart and Connected technology, including sensors integrated at test cocks No. 2, No. 3, and No. 4 to measure pressure fluctuations.
- An add-on monitoring connection kit (sold separately) is required to activate these sensors and transmit data to a Building Management System (BMS/BAS), enabling monitoring and assessment of backflow assembly performance.
- The integrated pressure sensors and monitoring connection kit do not replace compliance with all required instructions, codes, and regulations for backflow preventer installation, operation, and maintenance.
Design & Maintenance
- Utilizes a simplified modular design concept with a center stem guide to facilitate complete maintenance and assembly.
- Features replaceable stainless steel seats and captured spring assemblies for safety.
- Designed for maximum flow at low pressure drop.
- Approved for vertical flow up installation.
Specifications
- Size: 10 Inch
- Body Material: Epoxy Coated Cast Iron
- Valve Type: Double Check Valve Assembly
- Shutoff Valves: Non-Rising Stem (NRS) Resilient Seated Gate Valves
- Coating: ArmorTek Powder Coating (internal and external surfaces)
- Lead Free: Yes (wetted surface contains less than 0.25% lead by weight)
- Temperature Range: 33°F - 110°F (0.5°C - 43°C)
- Maximum Working Pressure: 175 PSI (12.1 bar)
- Monitoring: Integrated Pressure Sensors (requires add-on connection kit for data transmission)
Certificates & Approvals
- ASSE No. 1015
- AWWA C510-92
- CSA B64.5
- UL Classified File No. EX3185
- Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
- IAPMO Manual for Cross-Connection Control, 8th Edition
- AFMO PA-1