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  1. Double Check Valve Assemblies - Watts

    Designed for use in non-health hazard cross-connections and continuous pressure applications subject to backpressure or backsiphonage incidents, such as lawn sprinklers, fire sprinkler …

  2. How Does A DCVA Backflow Preventer Work? - Plumbing DIY Daily

    In this video, we'll explain how a DCVA (Double Check Valve Assembly) works to prevent contaminated water from flowing back into your main water line. We'll start by describing what …

  3. Understanding the Double Check Valve Assembly: A Crucial Backflow Preventer

    Jan 29, 2025 · Among the various types of backflow preventers, the double check valve assembly (DCVA) is one of the most common and simplest. This blog post will explain how a DCVA …

  4. 350 | Backflow Preventer | Water Safety | Zurn

    The Wilkins 350 Double Check Valve Backflow Preventer provides low hazard protection for all applications. The flanged, epoxy coated ductile iron body is available with multiple shut-off …

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  5. Backflow Preventer | Protect Your Plumbing & Water Supply

    Safeguard water quality with backflow preventer valves & devices. Shop now for affordable DCVA & RPZ options from top brands like Zurn, Watts, Wilkins & more.

  6. How to choose and install a backflow prevention assembly

    Backflow assemblies most commonly installed on residential irrigation systems are the double check valve assembly (DCVA) and the pressure vacuum breaker assembly (PVBA). The …

  7. Double check valve backflow preventer assembly (DCVA)

    The Double Check Valve Backflow Preventer (DCVA) offers moderate hazard protection against back siphonage and back pressure.

  8. Backflow Preventer for Double Check Valve Assembly in NJ

    The double-check valve backflow preventer assembly, or DVCA, has two resilient seat check valves that act independently. These check valves are located between two shut-off valves …

  9. 757 - Watts

    Series 757 Double Check Valve Assembly Backflow Preventers are designed to prevent the reverse flow of liquids in a plumbing system due to backpressure or backsiphonage where …

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  10. The DCVA is effective against backflow caused by backpressure and backsiphonage and is used to protect the water system from pollutants that would not constitute an actual health hazard, …