Watts 709DCDA-DOSY-GPM 4 - Part of the 709DCDA Series
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This 4 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. 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. It consists of a fused epoxy coated cast iron body, domestic outside stem and yoke resilient seated gate valves, captured spring check valves, a gallons per minute metered bypass to detect underground leaks and unauthorized water use, and four test cocks. The coating on this backflow assembly uses ArmorTek®, a patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion.
Features- Utilizes advanced ArmorTek coating technology to resist corrosion of internals
- Cast iron body construction with patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion
- Gallons per minute meter
- Silicon rubber check discs
- Outside stem and yoke shutoffs
| Specifications | |
|---|---|
| ArmorTek Technology | Yes |
| Backflow Preventer Type | Double Check Detector Assembly |
| Body Finish | Epoxy Coated Using ArmorTek Technology |
| Body Material | Cast Iron |
| Body Pattern | Inline |
| Brand | Watts |
| Buy American Act Compliant | NO |
| Bypass | Yes |
| Bypass Size | 1/2 IN |
| Cap And Tether | No |
| Disc Material | Rubber |
| EAN | 098268557589 |
| Elbow Fitting | No |
| Hazard Protection Level | Non Health Hazard |
| Hot And Harsh Water | No |
| Hydrant Connection | No |
| Inlet Connection Size | 4 IN |
| Inlet Connection Size-Metric | 100 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 | 4 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 | 0389299 |
| Polymer Coating | No |
| Pressure Operation | Continuous |
| Protection Type | Backpressure and Backsiphonage |
| Seat Material | Bronze |
| Series | 709DCDA |
| Strainer | No |
| Technologies | Does Not Apply To Product |
| Tradename | None |
