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- The Apollo™ Model DC4A and DCLF4A Lead Free Double Check Valves A Series prevent contamination of the potable water supply due to back-siphonage or backpressure from substances that are objectionable to the potable water supply, but non-health hazards. The top accessed modular check valve cartridges provide captured springs, replaceable seats and reversible silicone seat discs. This Made in America assembly features ball valve shutoffs with stainless steel handles and nuts as standard and carries the five-year Apollo™ factory warranty.
Apollo™ Backflow Preventer, Standard, Series: 4ALF-100, 1/2 in Nominal, 175 psi, 33 to 180 deg F, Shut-Off Ball Valve Ball Valve/Gate Valve, Double Check Backflow, Bronze Body, 10-7/8 in L x 2-1/2 in W, Domestic
- Low pressure loss documented by independent approval agencies
- Easily removable modular check valve cartridge
- Captured stainless steel springs
- Ball valve shut-off with SS handles and nuts standard
- Top mounted test cocks for easy testing
- No special tools required
- Chloramine-resistant elastomers
- Vertical up and horizontal installations
- Bronze C84400 or C89836 lead free body/caps
- Bronze C84400 or C87800 lead free BV shut-off, test cocks
- Glass-filled ppo check valve cartridges
- Chloramine-resistant silicone seat discs
- Chloramine-resistant EPDM o-rings
- SAE threaded test cocks
- Standard Y-Strainer
- Backflow TypeDouble CheckBall Valve / Gate Valve TypeShut-Off Ball ValveBody MaterialBronzeDomestic / ImportDomesticNominal Size1/2 inDimensions10-7/8 in L x 2-1/2 in WManufacturerApollo ConbracoManufacturer #4ALF-10-3-A2FPressure Rating175 psiSeries4ALF-100Temperature Rating33 to 180 degFTypeStandard