Backflow Preventers

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• Product Code: Backflow Preventers

Double Check Valve Lead Free Sizes: 2-1/2” – 12” Apollo 4ALF-100 LBF Series

 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

Double Check Detector Assembly – Apollo DCDALF4A/ DCDA2LF4A Series

The 2-1/2” – 12” Double Check Detector Assembly shall be an Apollo Model DCDALF 4A or DCDA2LF 4A. The assembly shall be manufactured in America and carry a 5-year Apollo factory warranty. The TriForce™ 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 22-1/2” – 8” sizes and FDA epoxy-coated ductile iron in 10” & 12” sizes. The assembly consists of a mainline double check valve with a Type 2 bypass (Type 1 optional) consisting of a lead free* single check (SCV) and meter bypassing the mainline second check to prevent backflow while accurately measuring all flows up to 2 gpm while the mainline 2nd check remains closed. Assemblies with the optional Type 1 bypass consist of a lead free* double check valve and meter which bypass both mainline checks and accurately meter all flows up to 2 gpm with the mainline checks closed. The Apollo lead free* ball valve test cocks shall have SS handles. The pressure drop across the assembly shall be documented by an independent laboratory. The assembly shall prevent contamination of the potable water supply due to back-siphonage or backpressure from substances that are non-health hazards

Double Check Valve - Apollo DCLF 4SG / 4SG / 4S Series

The Apollo DCLF 4SG / 4SG / 4S Series Double Check Valve is designed to prevent contamination of the potable water supply due to back-siphonage or backpressure from substances that are non-health hazards. The modular check valves have replaceable seats and reversible EPDM seat discs. Grooved connections on an epoxy-coated ductile iron body allow for easy connection to butterfly valves or gate valves (2-1/2” - 8”), flanged (10” only).

Reduced Pressure Detector Assembly - Apollo RPDALF4A / RPDA2LF4A Series

The 2-1/2” – 12” Lead Free Reduced Pressure Detector Assembly shall be an Apollo Model RPDALF4A or RPDA2LF4A. 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 and relief valve internals shall be by an Apollo quick-connect SS coupling (2-1/2” – 6”) or grooved couplings (covers) and SS bolts (relief valves) (8” – 12”). The bodies shall be SS in 2-1/2” – 8” sizes and FDA epoxy-coated ductile iron in 10” & 12” sizes. The assembly is a mainline RP with a Type 2 bypass consisting of a lead free* single check valve (SCV) and meter bypassing the mainline second check to prevent backflow while accurately measuring all flows up to 2 gpm with the mainline 2nd check remaining closed. Assemblies with the optional Type 1 bypass consist of a lead free* RP and meter which bypasses both mainline checks and accurately meters all flows up to 2 gpm with both mainline checks closed. The Apollo ball valve test cocks shall have SS handles. Both RP relief valves shall be positioned at the bottom of their respective assemblies with separate center-access covers. The pressure drop across the assembly shall be documented by an independent laboratory. The assembly shall prevent contamination of the potable water supply due to back-siphonage or back pressure from substances that are health or non-health hazards