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