774DCDA
Double Check Detector Assembly Backflow Preventers, Stainless Steel
Features
- Torsion spring check valve provides low head loss
- Single cover, top-entry design allows for convenient access for maintenance
- Detect costly underground leaks and unauthorized water use
- Stainless steel construction provides strength, resists corrosion, and weighs less
Series 774DCDA Double Check Detector Assembly Backflow Preventers are designed to prevent the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. They have a compact construction and short lay length, ideal for retrofit installations. They feature a lightweight stainless steel body, thermoplastic and stainless steel check valves, and low head loss. Series 774DCDA can be installed in the horizontal or vertical flow-up positions. It is designed for installation on applications identified by local authorities as non-health hazard, such as on fire protection systems. Maximum Working Pressure: 175psi (12.06 bar).
Literature
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Select options below to identify the UPC, Order Code, and Repair Kit for a specific 774DCDA
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| Model | Product Used On | Kit Contents |
|---|---|---|
|
RK 774/774DCDA-C 8-12
Cover Kit |
</br> |
Cover, Grooved Coupler, Gasket</br> |
|
RK 774/774DCDA-CK4
Second Check Kit |
</br> |
Complete Cam Check, Check O-ring</br> |
|
RK 774/774DCDA-C 2 1/2-4
Cover Kit |
</br> |
Cover, Grooved Coupler, Gasket</br> |
|
RK 774/774DCDA-CK1 2 1/2-4
First Check Kit |
</br> |
Complete #1 Cam Check, Check O-ring</br> |
|
RK 774/774DCDA-CK2 2 1/2-4
Second Check Kit |
</br> |
Complete #2 Cam Check, Check O-ring</br> |
|
RK 774/774DCDA-C 6
Cover Kit |
</br> |
Cover, Grooved Coupler, Gasket</br> |
|
RK 774/774DCDA-CK1 6
First Check Kit |
</br> |
Complete #1 Cam Check, Check O-ring</br> |
|
RK 774/774DCDA-CK2 6
Second Check Kit |
</br> |
Complete #2 Cam Check, Check O-ring</br> |
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Approval/Certification Information
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