LF709
Lead Free* Double Check Valve Assembly Backflow Preventers, Cast Iron, Sizes: 2 1/2 to 10 IN
LF709
Lead Free* Double Check Valve Assembly Backflow Preventers, Cast Iron, Sizes: 2 1/2 to 10 IN
Features
- Maximum flow rate at low pressure drop
- Replaceable stainless steel seats
- Modular, compact design to facilitate assembly and maintenance
- Advanced ArmorTek™ coating technology to resist corrosion of internals
- Pressure sensors on IOT models, activated with add-on monitoring connection kit
- Captured spring assemblies for safety
- Lead free* top-mounted test cocks
- Approved for vertical flow-up installation
Series LF709 Lead Free* double check valve assembly backflow preventers help stop the reverse flow of polluted water from entering into the potable water supply. This series has a modular check design for easy maintenance and is ideal at referenced cross-connections identified in non-health hazard applications. The series features Lead Free* construction to comply with Lead Free* installation requirements. Maximum working pressure is 175 psi (12.06 bar).
The coating on this backflow assembly uses ArmorTek®, a patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion.
To learn more visit: https://www.watts.com/armortek
The IOT model features sensor technology integrated on test cocks to measure pressure fluctuations at three points. Pressure measurements allow assessment of the performance of the backflow preventer assembly. An add-on monitoring connection kit is required to collect, convert, and transmit data values to a building management system.
To learn more visit: Series LF007-LF709 with Pressure Monitoring
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. Some certification agencies allow you to search by product name and brand.
Literature
Video - ArmorTek Advanced Coating System Overview
Armortek’s patented triple-layer coating protects valves from corrosion and microbiologically induced damage, extending their lifespan and enabling repair and recycling for sustainable water management.
Runtime : 00:01:13Watch Now
Video - ArmorTek in Las Vegas Five Years After Install
See how Armortek’s advanced coating system has successfully protected valves from corrosion and microbiological damage over five years in a real-world Las Vegas installation.
Runtime : 00:01:44Watch Now
Video - SentryPlus Alert Technology - Performance Monitoring with Pressure Sensors
Video for Performance Monitoring with Pressure Sensors
Runtime : 00:01:02Watch Now
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF709
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| Model | Used On - Series or Model | Kit Contents |
|---|---|---|
|
BF-BMS-MCK
Activation Kit |
</br>LF007-IOT, LF709-IOT</br> |
Interface Module with 3 Sensor Cables, Data Cable, Power Adapter</br> |
|
LFRK 709-CK4 4
First or Second Check Kit |
</br>LF709, 709</br> |
Disc and Spring Assembly, Cover O-ring</br> |
|
RK-BF-Sensors
Repair Kit |
</br>LF007-IOT, LF709-IOT</br> |
3 Pressure Sensor Modules</br> |
|
LFRK 709-CK4 2 1/2-3
First or Second Check Kit |
</br>LF709, 709</br> |
Disc and Spring Assembly, Cover O-ring</br> |
|
LFRK 709-CK4 10
Check Kit |
</br>LF709, 709</br> |
Disc and Spring Assembly, Cover O-ring</br> |
|
LFRK 709-CK4 6
First or Second Check Kit |
</br>LF709, 709</br> |
Disc and Spring Assembly, Cover O-ring, Upper Stem O-ring, Lower Stem O-ring</br> |
|
LFRK 709-CK4 8
Check Kit |
</br>LF709, 709</br> |
Disc and Spring Assembly, Cover O-ring</br> |