Model.

ES-640

PVC Backwater Valve

  • Stepped body design promotes efficient flow.
  • Access cap allows ease of clean-out or repair.
  • Flapper and cap O-ring create a positive seal against sewer gases.
  • Manufactured using 100% virgin resin.
  • Designed for DWV installations operating at a pressure less than 50 psi.
  • Manufactured in compliance with ASME A112.14.1-2003.
  • End connections comply with ASTM D2665.

Max. Working Pressure: 50 psi (4 bar)

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