WATTS® Dual Check Valve, Series: LF7R, 1 in Nominal, FNPT, 175 psi, 33 to 180 deg F, Yes Low Lead Compliance, Media: Water, 3-7/8 in Inlet to Outlet Length, Copper Silicon Alloy Body, Stainless Steel Spring/Santoprene Disc Trim, EPDM Seal, 1-7/8 in H
Series LF7R Lead Free* 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. It consists of a Lead Free* cast copper silicon alloy body construction, with two compact replaceable plastic check modules, and stainless steel springs. Series LF7R is designed for non-health hazard residential water system containment, continuous pressure applications. It is installed immediately downstream of the residential water meter, in a vertical or horizontal position. Check with local inspection authorities for installation requirements. Minimum Working Pressure: 10psi (69 kpa) Maximum Working Pressure: 175psi (12 bar).