Watts 774DCDA-DOSY-GPM 12 - Part of the 774DCDA Series
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This 12 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazards such as on fire protection systems and from other contaminants found at the service line entrance. This compact modular design with a single access cover for easy maintenance is approved for horizontal and vertical flow up installation. It consists of a light weight stainless steel body, domestic outside stem and yoke resilient seated gate valves, torsion spring check valves, a gallons per minute metered bypass to detect underground leaks and unauthorized water use, and four test cocks. It has a short lay length.
Features- Stainless steel body
- Gallons per minute meter
- Non-health hazard application
- No special tools required for servicing
| Specifications | |
|---|---|
| ArmorTek Technology | No |
| Backflow Preventer Type | Double Check Detector Assembly |
| Body Finish | Stainless Steel |
| Body Material | Stainless Steel |
| Body Pattern | Does Not Apply To Product |
| Brand | Watts |
| Buy American Act Compliant | NO |
| Bypass | Yes |
| Bypass Size | 3/4 IN |
| Cap And Tether | No |
| Disc Material | Does Not Apply To Product |
| EAN | 098268345070 |
| Elbow Fitting | No |
| Hazard Protection Level | Non Health Hazard |
| Hot And Harsh Water | No |
| Hydrant Connection | No |
| Inlet Connection Size | 12 IN |
| Inlet Connection Size-Metric | 300 MM |
| Inlet Connection Type | Flanged Joint |
| Inlet Shutoff Valve Type | Outside Stem And Yoke Gate Valve |
| Inlet Thread Type | Does Not Apply To Product |
| Lead Free | No |
| Maximum Temperature-Fahrenheit | 110 |
| Maximum Working Pressure-BAR | 12.10 |
| Maximum Working Pressure-PSI | 175 |
| Meter Type | GPM |
| Minimum Temperature - Celsius | 0.50 |
| Minimum Temperature-Fahrenheit | 33 |
| Outlet Connection Size | 12 IN |
| Outlet Connection Type | Flanged Joint |
| Outlet Shutoff Valve Type | Outside Stem And Yoke Gate Valve |
| Outlet Thread Type | Does Not Apply To Product |
| Part Number | 0439340 |
| Polymer Coating | No |
| Pressure Operation | Continuous |
| Protection Type | Backpressure and Backsiphonage |
| Seat Material | Engineered Plastic |
| Series | 774DCDA |
| Strainer | No |
| Technologies | Does Not Apply To Product |
| Tradename | None |
