APOLLO 4A-100/200 4" COVER O'RING

Model Overview

The 2-1/2" – 12" Backflow Preventer shall be an Apollo® Model DCLF 4A Lead Free* Double Check Valve. The assembly shall be manufactured in America and carry a 5-year Apollo® factory warranty. The TriForceTM center stem guided check valves shall feature reversible silicone rubber seat discs. The check valves shall be held in place by SS snap-in retainers (2-1/2" – 6") or SS studs & nuts (8" – 12"). Access to the check valves shall be by an Apollo® quick-connect SS coupling (2-1/2" – 6") or grooved couplings (8" – 12"). The bodies shall be domestic SS in 2-1/2" – 8" sizes and FDA epoxy coated ductile iron in 10" & 12" sizes. The lead free* Apollo® domestic ball valve test cocks shall have SS handles. The assembly shall prevent contamination of the potable water supply
due to back-siphonage or backpressure from substances that are non-health hazards. The pressure drop across the assembly shall be documented by an independent laboratory.