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 3/4" FNPT x 3/4" FNPT

Materials:

• Body: Lead Free* copper silicon alloy
• Check Modules: engineered composite
• Discs: santoprene
• Seals: EPDM
• Springs: stainless steel

Disclaimer: Watts® is a registered trademark of Watts Water Technologies, Inc, which is not affiliated or otherwise associated with Fresh Water Systems, Inc. or this site. Fresh Water Systems, Inc acknowledges and confirms that it has not been granted any license or authority from Watts Water Technologies, Inc to use the mark, and further confirms that any and all use of the mark on this site is for identification and descriptive purposes only and such use is not intended to, does not, and shall not be deemed to imply any association or affiliation between Watts Water Technologies, Inc. and Fresh Water Systems, Inc. of any nature whatsoever.