SS-250 Stainless Steel Slide Gates


WATERMAN SS-250 SERIES STAINLESS STEEL SLIDE GATES are engineered for excellent sealing while providing maximum resistance to corrosion. The gates feature Ultra High Molecular Weight Polyethylene (UHMW) sliding and seating surfaces, dissimilar from the gate slide material, resulting in low coefficient of friction while maintaining superior corrosion resistance.

SS-250 Series Slide Gates may be specified with optional type 316 stainless steel for use in unusually corrosive environments such as hydrogen sulfides or salt water.


  • Designed to maintain leakage at 1/2 that allowed by AWWA standard (Leakage shall not exceed 0.05 gpm/ft of wetted seal perimeter in seating head and unseating head conditions.)
  • Custom designed to meet seating and unseating heads per application, incorporating AWWA safety factors
  • Available in normal aperture configurations, channel (embedded or bolted), or as weirs (downward opening)
  • Available as self-contained gates
  • Gate frames may be embedded in channel walls, mounted to a wall with anchor bolts, mounted to pipe flange, or wall thimble
  • Extension stems and separate operators available
SS-250 Resources & Downloads