Backflow Preventer Reduced Pressure Zone Assembly With Butterfly Valve, Series/Model: Model RPDALF4A, Nominal Size: 4 IN, Connection Type: Grooved End, Pressure Rating: 175 PSI, Temperature Rating: 33 - 140 DEG F And 180 DEG F Intermittent, 304 Stainless Steel Body Material, Trim Material: Chloramine-Resistant Silicone Seat Disc, Industry Standards: ASSE 1047, CSA B64.4 Certified, UL, ULC Classified, FM Approved, US Patent Numbers 6443184, 7025085, 7533699, ISO 9001-2008 Registered, 33-1/4 IN Width, Lead Free: Yes, Other Physical Dimension: 17 IN Depth, 9-1/8 IN Inlet Center To Top Of Valve

The 2-1/2 - 12 IN 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 YR 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 IN) or SS studs and nuts (8 - 12 IN). access to the check valves and relief valve internals shall be by an Apollo® quick-connect SS coupling (2-1/2 - 6 IN) or grooved couplings (covers) and SS bolts (relief valves) (8 - 12 IN). the bodies shall be SS in 2-1/2 - 8 IN sizes and FDA epoxy-coated ductile iron in 10 and 12 IN 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.

• Domestic stainless steel body
• FDA epoxy coated ductile iron body: 10 and 12 IN
• Easy maintenance - no special tools required
• Snap-in check retainers: 2-1/2 - 6 IN
• Bolted-in checks: 8 - 12 IN
• Low-pressure loss as documented by an independent laboratory
• Center-stem guided TriForce™ check valves
• Modular captured spring relief valve
• Lead-free standard
• 5 YR warranty
• Made in the USA

• Brochure/Catalog https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/1504A107A2FDC_Broc.pdf
• Instruction/Installation Manual https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/ApolloValves_4ALF-72A-E9_Instruction_Installation_Manual.pdf
• Specification Sheet https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/ApolloValves_4ALF-72A-E9_Specification_Sheet.pdf