709
Discontinued
Double Check Valve Assembly Backflow Preventers, Cast Iron
709
Discontinued
Double Check Valve Assembly Backflow Preventers, Cast Iron
Features
- Utilizes advanced ArmorTek coating technology to resist corrosion of internals
- The valve body shall utilize a coating system with built in electrochemical corrosion inhibitor and microbial inhibitor
- Maximum flow at low pressure drop
- No special tools required for servicing
Series 709 Double Check Valve Assembly Backflow Preventers are designed to prevent the reverse flow of polluted water from entering into the potable water supply. It has a modular check design for easy maintenance and a coated cast iron body using ArmorTek® epoxy coating technology for advanced corrosion resistance. Series 709 is ideal at referenced cross-connections identified in non-health hazard applications. Check with local inspection authorities for installation requirements. Maximum working pressure: 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
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
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific 709
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| Model | Product Used On - Series or Model | Kit Contents |
|---|---|---|
|
LFRK 709-CK4 10
Check Kit |
</br>LF709, 709</br> |
Disc and Spring Assembly, Cover O-ring</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 4
First or Second 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> |
|
LFRK 709-S 10
Seat Kit |
</br>LF709</br> |
Seat, Seat O-ring, Cover O-ring, Retainer Wire</br> |
|
RK 709-C 10
Cover Kit |
</br>709</br> |
Cover, Cover O-ring</br> |
|
RK 709-RC4 10
Rubber Parts Kit |
</br>709</br> |
Disc and Cover O-ring</br> |
|
RK 709-RT 10
Complete Rubber Parts Kit |
</br>709</br> |
2 Discs, 2 Cover O-rings</br> |
|
LFRK 709-S 6
Seat Kit |
</br>LF709</br> |
Seat, Seat O-ring, Cover O-ring, Retainer Wire</br> |
|
RK 709-C 6
Cover Kit |
</br>709</br> |
Cover, Cover O-ring</br> |
|
RK 709-RC4 6
Rubber Parts Kit |
</br>709</br> |
Disc, Cover O-ring, Upper Stem O-ring, Lower Stem O-ring</br> |
|
RK 709-RT 6
Complete Rubber Parts Kit |
</br>709</br> |
2 Discs, 2 Cover O-rings, Upper Stem O-ring, Lower Stem O-ring</br> |
|
LFRK 709-S 2 1/2-3
Seat Kit |
</br>LF709, 709</br> |
Seat, Seat O-ring, Cover O-ring, Retainer Wire</br> |
|
RK 709-C 2 1/2-3
Cover Kit |
</br>709</br> |
Cover, Cover O-ring</br> |
|
RK 709-RC4 2 1/2-3
Rubber Parts Kit |
</br>709</br> |
Disc and Cover O-ring</br> |
|
RK 709-RT 2 1/2-3
Complete Rubber Parts Kit |
</br>LF709, 709</br> |
2 Discs, 2 Cover O-rings</br> |
|
LFRK 709-S 4
Seat Kit |
</br>LF709, 709</br> |
Seat, Seat O-ring, Cover O-ring, Retainer Wire</br> |
|
RK 709-C 4
Cover Kit |
</br>709</br> |
Cover, Cover O-ring</br> |
|
RK 709-RC4 4
Rubber Parts Kit |
</br>709</br> |
Disc and Cover O-ring</br> |
|
RK 709-RT 4
Complete Rubber Parts Kit |
</br>709</br> |
2 Discs, 2 Cover O-rings</br> |