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Unitized Systems -Engineering <br /> i Page 1 of 4 <br /> Unitized Systems <br /> Unitized Underground Fueling System <br /> [Engineering Design Overview] [Usage F xaiiipfes] <br /> [Petro-First Manufacturers] [Certification] <br /> Synopsis of PetroFirst Engineering Design <br /> . " Acl,vanta.ges of PertoFirst <br /> In-depth Engineering analyses were performed in the development <br /> of the PetroFirst Tank concept. Consideration of all the various <br /> and most severe design,conditions that are prevalent or could <br /> occur in the worldwide retail petroleum marketplace were <br /> addressed by fully experienced and certified engineering <br /> Mum to Ilome professionals. <br /> [jt1deTrOolld Tanks <br /> t uthor d Sys'-wins <br /> The engineering design criteria, calculations, analysis and final <br /> Authorized Munttfitciurers <br /> Contact Us report manuals are lengthy and somewhat complex, therefore the <br /> Site me'x following description of the engineering work performed is <br /> provided to aid a prospective client to better understand and reach <br /> a comfortable level with the product quality and technical <br /> credence. <br /> I. Downloads/Uploads There are five scenarios of vertical <br /> loading (up and down), that required full investigation: <br /> t <br /> The loads used in the design development account for the effects <br /> of gravity wind, snow or seismic conditions. The standard design <br /> therefore will accommodate the most severe magnitude of these <br /> effects which can be expected in North America. The Tank was <br /> field tested in witness by the Underwriters Laboratory officials to <br /> verify the design and as a prerequisite to the UL certification <br /> issued in July 1996. The download is the more critical design <br /> concern therefore, each canopy column connection seat is <br /> designed to accept a minimum of 53,000 lbs download with an <br /> additional safety factor as prescribed by A.I.S.C, specifications. <br /> The UL certification limits the load per canopy column seat to <br /> http://www.plasteel.conVpfeng.html <br />