Sioux ABS Backwater Valve 3"| 869-S3A

Specifications

Brand

Sioux Chief

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 flow. Flapper shall install into valve body via removable carrier, which utilizes key-to-slot fit to ensure proper alignment. Flapper shall have a permanent, one-piece sealing surface, and allow unrestricted, unidirectional flow. Backwater valve shall be adaptable to deep-bury installations utilizing upper and lower adapter fittings, which conform to ASTM D2665 (PVC) or D2661 (ABS). Valve assembly shall be sealed by an impact/solvent resistant lid with o-ring. Designed in accordance with ASME A112.14.1-2003