LF719
Lead Free* Double Check Valve Assembly Backflow Preventers, Cast Copper Silicon Alloy
Features
- Manufactured from lead-free* cast copper silicon alloy
- Separate, top-entry access to check valve
- Reversible seat disc rubber extends check valve life
- Replaceable seats and seat discs
Series LF719 Double Check Valve Assembly Backflow Preventers are designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements. They have a Lead Free* cast copper silicon alloy body construction and chloramine resistant elastomers.
Series LF719 features a separate access, top-entry check valve design for ease of maintenance and is for use at referenced cross-connections in non-health hazard applications. Check with local inspection authorities for installation requirements. Maximum working pressure is 175 psi (12.06 bar).
Literature
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF719
No results found
| Model | Product Used On | Kit Contents |
|---|---|---|
|
LFRK 719C 1
Check Cover Kit |
</br> |
Cover, Cover O-ring</br> |
|
RK 719-CK4 1
First or Second Check Kit |
</br> |
Disc Holder, Spring, Cover O-ring</br> |
|
RK 719-RC4 1
Check Rubber Parts Kit |
</br> |
Disc Rubber, Seat O-ring, Cover O-ring</br> |
|
RK 719-RT 1
Complete Rubber Parts Kit |
</br> |
2 Check Seat O-rings, 2 Check Cover O-rings, 2 Check Rubbers</br> |
|
RK 719-S 1
First or Second Check Seat Kit |
</br> |
Seat, Seat O-ring, Cover O-ring</br> |
|
RK 719-T 1
Total Repair Kit |
</br> |
2 First or Second Check Repair Kits</br> |
|
LFRK 719-C 1/4-1 1/2
Check Cover Kit |
</br> |
Cover, Cover O-ring</br> |
|
RK 719-CK4 1 1/4-1 1/2
First or Second Check Kit |
</br> |
Disc Holder, Spring, Cover O-ring</br> |
|
RK 719-RC4 1 1/4-1 1/2
Check Rubber Parts Kit |
</br> |
Disc Rubber, Seat O-ring, Cover O-ring</br> |
|
RK 719-RT 1 1/4-1 1/2
Complete Rubber Parts Kit |
</br> |
2 Check Seat O-rings, 2 Check Cover O-rings, 2 Check Rubbers</br> |
|
RK 719-S 1 1/4-1 1/2
First or Second Check Seat Kit |
</br> |
Seat, Seat O-ring, Cover O-ring</br> |
|
RK 719-T 1 1/4-1 1/2
Total Repair Kit |
</br> |
2 First or Second Check Repair Kits</br> |
|
LFRK 719C 1/2
Check Cover Kit |
</br> |
Cover, Cover O-ring</br> |
|
RK 719-CK4 1/2
First or Second Check Kit |
</br> |
Disc Holder, Spring, Cover O-ring</br> |
|
RK 719-RC4 1/2
Check Rubber Parts Kit |
</br> |
Disc Rubber, Seat O-ring, Cover O-ring</br> |
|
RK 719-RT 1/2
Complete Rubber Parts Kit |
</br> |
2 Check Seat O-rings, 2 Check Cover O-rings, 2 Check Rubbers</br> |
|
RK 719-S 1/2
First or Second Check Seat Kit |
</br> |
Seat, Seat O-ring, Cover O-ring</br> |
|
RK 719-T 1/2
Total Repair Kit |
</br> |
2 First or Second Check Repair Kits</br> |
|
LFRK 719C 2
Check Cover Kit |
</br> |
Cover, Cover O-ring</br> |
|
RK 719-CK4 2
First or Second Check Kit |
</br> |
Disc Holder, Spring, Cover O-ring</br> |
|
RK 719-RC4 2
Check Rubber Parts Kit |
</br> |
Disc Rubber, Seat O-ring, Cover O-ring</br> |
|
RK 719-RT 2
Complete Rubber Parts Kit |
</br> |
2 Check Seat O-rings, 2 Check Cover O-rings, 2 Check Rubbers</br> |
|
RK 719-S 2
First or Second Check Seat Kit |
</br> |
Seat, Seat O-ring, Cover O-ring</br> |
|
RK 719-T 2
Total Repair Kit |
</br> |
2 First or Second Check Repair Kits</br> |
|
LFRK 719C 3/4
Check Cover Kit |
</br> |
Cover, Cover O-ring</br> |
|
RK 719-CK4 3/4
First or Second Check Kit |
</br> |
Disc Holder, Spring, Cover O-ring</br> |
|
RK 719-RC4 3/4
Check Rubber Parts Kit |
</br> |
Disc Rubber, Seat O-ring, Cover O-ring</br> |
|
RK 719-RT 3/4
Complete Rubber Parts Kit |
</br> |
2 Check Seat O-rings, 2 Check Cover O-rings, 2 Check Rubbers</br> |
|
RK 719-S 3/4
First or Second Check Seat Kit |
</br> |
Seat, Seat O-ring, Cover O-ring</br> |
|
RK 719-T 3/4
Total Repair Kit |
</br> |
2 First or Second Check Repair Kits</br> |
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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.