Backflow Design Services
Division of Azarkian Architecture P.C.
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Double Check Valve and Double Check Detector Assembly systems may be used for certain domestic or fire-protection water services when the applicable hazard classification permits their use.
BDS.nyc reviews the property, existing water-service arrangement, and intended system to determine the appropriate device and filing path.
We prepare the required plans and coordinate DEP review, Licensed Master Plumber installation, certified testing, and project closeout.
A DCV is a double check valve assembly containing two independently operating check valves that help prevent water from flowing backward.
A DCDA includes a double check assembly and a metered bypass. It is frequently associated with fire-protection water services and allows low-flow usage or leakage to be detected.
The appropriate device depends on the service type, property use, system conditions, and applicable DEP requirements.
Our service may include:
Fire-service and domestic-water arrangements can differ substantially. Filing the wrong device or failing to coordinate the bypass, meter, valves, or service configuration may delay approval and require redesign.
A proper filing begins with understanding the actual water service rather than selecting a device because somebody saw one in another basement and declared it close enough.
BDS.nyc coordinates the device design with the actual domestic or fire-protection service, existing field conditions, and DEP filing requirements.
Our process helps prevent mismatches between the approved plan and installed system while keeping the plumber, tester, owner, and design professional aligned through closeout.