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- Sioux Chief 869 Series backwater valve shall be installed where necessary in drainage systems. Backwater valve shall be installed on horizontal drainage lines for the purposes back flow prevention. Backwater valve shall have a stepped design to provide adequate fall to encourage flow. Flapper shall have neoprene o-ring seal, and allow unrestricted unidirectional flow while reducing the "straining" of effluent.
DWV Backwater Valve, Series: 869
- Threaded access seals hand-tight and allows for easy maintenance and inspection
- 6 in backwater valve extensions - use 10 in SCH 40 pipe (not included)
- For gravity flow applications only
- Do not install vertically
- Extension sleeve kit for 2 in valve includes sleeve, locking collar and lid
- Domestic / ImportDomesticManufacturerSioux ChiefManufacturer #869-23Series869