LEGEND 202-263 S-641 Backwater Valve, 3 in Nominal, Solvent End Style, PVC Body, Import

DRAINBWV3PAS MFG #: 202-263/223287W
  • Body Material: PVC
  • Country of Origin: CN
  • Dimensions: 7.37 in W x 21 in H
  • Domestic/Import: Import
  • End Style: Solvent
  • Manufacturer Name: Legend
  • Nominal Size: 3 in
  • Pressure Rating: 5 psi
  • Series: S-641
LEGEND models S-641 backwater valves are constructed of ASTM D1784 virgin resins that will not rust, corrode or pit. They are designed for use in residential and commercial applications to prevent backflow in drainage systems. The stepped construction promotes efficient flow and helps prevent clogging. The access cap facilitates ease of clean-out or repair.
  • Features and More


  • The stepped body design places the inlet socket-end higher than the outlet, promoting the correct drop-per-foot and improving flow efficiency
  • Heavy-duty Acme-threaded access lid can be removed using the end of a dimensional 2 x 4 in board of correct length, to ease clean-out or repair
  • Lid and flapper are equipped with an O-ring or gasket seal, assuring a positive seal-out of sewer gasses
  • Manufactured with 100% virgin resins, no re-grind
  • Designed for horizontally-installed, low-or-no pressure gravity-flow DWV systems only
  • Not suitable for upward-flow vertical installations or pressurized systems


  • 16 in Access Sleeve With Cap


  • ASME A112.14.1-2003
  • ASTM D1784/D2665
  • IAPMO Listed
  • IPC Listed File No. 4790
  • ISO 9002
  • UPC Listed


  • 5 Years Limited