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RW Gate Company
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  5. RW - Aluminum Stop Logs

RW - Aluminum Stop Logs

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The stop log assemblies shall be provided as specified herein and as shown in the Contract Documents.  Individual stop logs shall be lowered into place with a lifting device and shall be used to control the flow or water level as required for the application.

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PERFORMANCE REQUIREMENTS

  1. Leakage for the stop logs shall be restricted to 0.10 gpm/ft or less of the seal perimeter at the design seating head.  
  2. All of the seals shall be mounted on the log to facilitate seal replacement.

SUBMITTALS

  1. Submittals shall include, at a minimum, detailed custom drawings of the complete stop log assembly and accessories 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 that the deflection is limited to the criteria specified herein.   

QUALITY ASSURANCE

  1. The basis of design for the stop logs is the Model RW3000-A as manufactured by RW Gate Company, Troy, NY.
  2. All stop logs assemblies shall be shop inspected for proper operation prior to shipment.
  3. Welds shall be performed by welders with ASME Section IX or AWS D1.2 and D1.6 (if applicable) certification.
  4. The stop log manufacturer shall be ISO 9001:2015 certified.  

MATERIALS OF CONSTRUCTION

  1. All aluminum shall be alloy 6061-T6, ASTM B308/308M.
  2. All stainless steel referenced in this specification shall be Type 304 or Type 304L, ASTM A240 or ASTM A276 unless otherwise indicated herein.
    1. All welded stainless steel components shall be constructed of Type 304L stainless steel.
    2. All structural stainless steel used in the construction of stop logs, frames and storage racks (if applicable) shall have a minimum material thickness of 1/4-inch.
    3. All non-welded stainless steel components, excluding anchor bolts and assembly bolts, shall be Type 304 stainless steel.
    4. Anchor bolts and assembly bolts shall be Type 316 stainless steel.