Watts LF7R Series Dual Check Valves prevent the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. They are designed for non-health hazard residential water system containment and continuous pressure applications. The valves consist of a Lead Free cast copper silicon alloy body construction, with two compact replaceable plastic check modules, and stainless steel springs. They are installed immediately downstream of the residential water meter, in a vertical or horizontal position. Check with local inspection authorities for installation requirements.
Specifications:- Prevents backflow
- Tested and certified by NSF to NSF/ANSI Standard 61 Annex G
- Can be installed vertically or horizontally
- Temperature Range: 33˚F – 180˚F (0.5˚C-82˚C) continuous
- Minimum Working Pressure: 10psi (69 kPa)
- Maximum Working Pressure: 175psi (12.07 bar)
- Connection Type: union 1" FNPT x 1" FNPT
Materials:- Body: Lead Free* copper silicon alloy
- Check Modules: Engineered composite
- Discs: santoprene
- Seals: EPDM
- Springs: stainless steel
Also Compatible With:- Zurn-Wilkins Dual Check Valve 1UFX1F-700XL
- Cash Acme BF1 Dual Check Valve #17218
Compatible with:| Backflow Prevention | Zurn-Wilkins Dual Check Valve 1UFX1F-700XL |
California residents
Prop 65 Warning
WARNING! This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov
| Product Details |
|---|
Body Material | Low-lead Brass |
Max Pressure (Psi) | 175 |
Max Temp (°F) | 180 |
Min Temp (°F) | 33 |
Spring | stainless steel |
Origin | U.S.A. |
| Shipping Dimensions |
|---|
Shipping Length | 6 in. |
Shipping Width | 6 in. |
Shipping Height | 4 in. |
| Product Weight & Dimensions |
|---|
Product Height | 1.75 |
Product Length | 3.875 |
Product Width | 1.75 |
Product Weight (lbs) | 1 |





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