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Seller’s Proposal for Public Works 14 <br />CORROSION PROTECTION STATEMENT <br />Detailed in this submittal is a complete manufacturing methodology for corrosion protection to be utilized <br />by the booster pumping system manufacturer. Key components of that manufacturing methodology are <br />listed below. <br />SURFACE PREPARATION AND EXTERIOR COATING <br />All surfaces of the entire structure including the entire skid and base plate shall be grit blasted equal to near <br />white blast cleaning (SSPC-SP10). <br />Following blasting and directly before full painting, all weldments will be hand primed with a covering primer <br />coating. <br />The protective coating shall take place immediately after surface preparation. The protective coating shall <br />consist of a two component, high solids, amide-cured epoxy system formulated for high build application <br />having excellent chemical and corrosion resistant properties. The epoxy system shall be self-priming and <br />require no intermediate coatings. The protective coating shall provide in two (2) applications a total dry mil <br />thickness of 8.0 mils minimum, 11 mils maximum. <br />FUSION BONDED EPOXY INTERNAL PIPE COATING <br />The internal surfaces of piping to be fusion bonded coated shall be grit blasted to an SP-10 finish <br />with the finish profile required by the coating material manufacturer. <br />The internal, wetted surfaces of the steel transmission piping shall have applied to it a Fusion <br />Bonded Epoxy Coating on the interior pipe surface. The coating shall be applied and meet the testing <br />requirements of Table 1 and Table 2 with the exception of Table 2 section 7 per AWWA C-213. <br />The powder coating product shall be National Sanitation Foundation (NSF) Standard 61 certified <br />material. <br />Prior to shipment of the station, the station manufacturer shall provide in writing to the Engineer <br />certification that the fusion bonded epoxy coating has been applied to all internal surfaces of the steel piping <br />using the proper method. Said certification shall show under the station manufacturer's letterhead: <br />-Date of application; <br />-Material manufacturer and product designation including a product data sheet for the coating; <br />-Applier of the fusion bonded coating, name, address and phone number; <br />-Notarized signature of an officer of the station manufacturing company stating the fusion <br />bonded epoxy coating was applied to AWWA Standard C213-91 or the latest revision. <br />PIPING <br />Piping shall be steel and conform to material specification ASTM A-53 (CW) for nominal pipe size <br />four (4) inch and smaller and ASTM A-53 (ERW) Grade B for nominal pipe size five (5) inches and larger. <br />Steel butt-welding fittings shall conform to material specification ASTM A-234 Grade WPB and to the <br />dimensions and tolerances of ANSI Standards B1.9 and B16.28 respectively. <br />Forged steel flanges shall conform to material specification ASTM A-105 Class 60 and/or ASTM A- <br />181 for carbon steel forgings and to the dimensions and tolerances of ANSI Standards B16.5 as amended <br />in 1992 for Class 150 and Class 300 flanges. <br />The piping sizes shall be as shown on the drawing. <br />Size 10 inch and below -Schedule 40 <br />Size 12 inch and above -Standard weight (.375" wall)