774DCDA-OSY-TS-CFM 2 1/2
Part of the 774DCDA Series
Ordering Code: 88003139
UPC: 098268297386
Lead Free: NO
2 1/2 IN SS Double Check Detector Assembly Backflow Preventer, OSY Shutoffs, Tamper Switch, Cubic Feet Meter, Short Lay Length
This 2 1/2 inch double check detector backflow preventer assembly prevents the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. It is designed for installation on applications identified by local authorities as non-health hazard, such as on fire protection systems. This assembly consists of a compact construction and short lay length, ideal for retrofit installations and can be installed in a horizontal or vertical flow-up position. It features a lightweight stainless steel body, thermoplastic and stainless steel check valves that provide low head loss. It has a cubic feet meter, outside stem and yoke shutoffs, and tamper switch. The maximum working pressure is 175 psi (12.06 bar).
Features
- Includes UL-listed fire tamper supervisory switch
- Stainless steel for corrosion resistance
- Designed for minimum head loss
- 150 pound ANSI/AWWA CL D flanged
- Outside stem and yoke shutoffs
| 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 |
| Bypass | Yes |
| Bypass Size | 3/4 IN |
| Cap And Tether | No |
| Disc Material | Does Not Apply To Product |
| EAN | 098268297386 |
| Elbow Fitting | No |
| Hazard Protection Level | Non Health Hazard |
| Hot And Harsh Water | No |
| Hydrant Connection | No |
| Inlet Connection Size | 2 1/2 IN |
| Inlet Connection Size-Metric | 65 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 | CFM |
| Minimum Temperature - Celsius | 0.50 |
| Minimum Temperature-Fahrenheit | 33 |
| Outlet Connection Size | 2 1/2 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 | 88003139 |
| Polymer Coating | No |
| Pressure Operation | Continuous |
| Protection Type | Backpressure and Backsiphonage |
| Seat Material | Engineered Plastic |
| Series | 774DCDA |
| Strainer | No |
| Tradename | None |