DMV Backwater Valve, Nominal Size: 4 inch, Solvent Weld Connection, PVC Body, Pressure Rating: 10 psi (Backflow), Dimensions: 6-9/16 to 6-7/8 inch H x 10-1/8 inch W, ASME A112.14.1-2003 Standards/Approvals

Sioux Chief 869 series ProCheck backwater valves shall be used where necessary in drainage systems. Backwater valve shall be installed in horizontal drainage lines to reduce or prevent damage to dwelling from sewage backup. Backwater valve shall have a stepped design to provide adequate fall through the valve body and encourage fl ow. Flapper shall install into valve body via removable carrier, which utilizes key-to-slot fi t to ensure proper alignment. Flapper shall have a permanent, one-piece sealing surface, and allow unrestricted, unidirectional fl ow. Valve body shall be sealed by an impact/solvent resistant lid with o-ring. Backwater valve shall be adaptable to either shallow or deep-bury installations and be designed in accordance with ASME A112.14.1-2003