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RW - Stainless Steel Sluice Gates & Slide Gates

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A stainless steel sluice gate is defined herein as a heavy-duty gate with a four-sided seal system that is used to close off an orifice that experiences a maximum water level that can exceed the top of the orifice. A stainless steel slide gate is defined herein as a gate that has a three-sided seal system. The seals are positioned along the sides and across the invert of the opening. A stainless steel weir gate is a downward-opening slide gate.

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GENERAL

  1. The sluice gates and slide gates shall be provided as specified and as shown in the Contract Documents.  
  2. The gates shall be in compliance with the latest version of AWWA C561 as modified herein
  3. PERFORMANCE REQUIREMENTS
  4. Leakage for sluice gates and slide gates shall be restricted to 0.05 gpm/ft or less of the seal perimeter at the design seating head and the design unseating head.

SUBMITTALS

  1. Submittals shall include, at a minimum, detailed custom drawings of the gate assembly with dimensional and mounting information and a listing of the materials of construction. General arrangement drawings and cut sheets are not considered acceptable drawings.
  2. Calculations shall be provided to confirm compliance with the safety factors listed in AWWA C561 for all parts of the frame, anchorage and slide including the portion of the slide that engage the frame.
  3. A copy of the test results from the minimum 30,000 cycle test confirming the durability of the seal system.
  4. A copy of the ISO 9001:2015 certification.

QUALITY ASSURANCE

  1. The basis for the design of the sluice gates and slide gates is the Model RW1000-S as manufactured by RW Gate Company, Troy, NY.
  2. All gates shall be shop inspected for proper operation prior to shipment. Sluice gates, gates with seals on all four sides, shall be factory leakage tested in the unseating head direction with clean water at the design head. Certified test data shall be included in the O&M.
  3. Welds shall be performed by welders with ASME Section IX or AWS D1.6 certification.
  4. The gate manufacturer shall be ISO 9001:2015 certified.