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iaAir Resources Board �► <br />Alan C. Lloyd, Ph.D. <br />wUatH. rChairman Gray Davis <br />Agencyyn Sscr9tajery 1001 ! Street • P.O. Box 2815 • Sacramento, CaRomia 95812 • www.arb.ca.gov Govemor <br />October 21, 2002 02-12 <br />Mr. Mike Gallo <br />Manager, Regulatory Engineering <br />Dresser Wayne, Dresser Inc. <br />Corridor Park 1 <br />3814 Jarrett Way <br />Austin, Texas 78728 <br />Dear Mr. Gallo: <br />Thank you for your June 24, 2002, letter requesting California Air Resources Board <br />(ARB) approval of the "Ovation Series" unihose fuel dispenser with vacuum assist vapor <br />recovery. In addition to your letter, you provided approval letters, engineering drawings, <br />and test data. <br />The Ovation series dispenser features a vapor return path that is routed through a new <br />style top casting and then directed to the lower portion of the dispenser by galvanized <br />plumbing. The lower section of the dispenser contains two vapor recovery vacuum <br />pumps, one pump dedicated to each side. The remainder of the dispenser including the <br />lower assembly and footprint is based upon the currently certified "Vista Series" chassis. <br />See Figure 1 for an illustration of the Ovation with vacuum assisted vapor recovery. <br />Based on an engineering evaluation conducted by ARB and test data provided by <br />Wayne, we find the use of the Ovation Series fuel dispenser, when installed in <br />accordance with the manufacturer's recommended instructions, will not adversely affect <br />the vapor recovery systems on which they are installed. Therefore, the vacuum assist <br />configuration of the Wayne Ovation Series fuel dispenser is approved for use with the <br />currently certified (pre-EVR) vacuum assist vapor recovery systems with an A/L range <br />Of 0.90 to 1.10. <br />The July 3, 2002, CP -201 requires all dispensers to comply with the "unihose MPD <br />configuration." This standard limits the number of gasoline hoses/nozzles to one per <br />dispenser side. Although this standard does not become effective until April 1, 2003, <br />this letter grants approval only to those Ovation series dispenser configurations <br />equipped with one gasoline hose per dispenser side. Dispensers equipped with one <br />diesel hose/nozzle and one gasoline hose/nozzle per side, such as the Ovation "Three <br />Plus One" option are also approved. The "Three Plus One" designates the dispenser as <br />capable of dispensing three grades of gasoline plus an altemative fuel such as diesel. <br />The OMW ch~ MOW CaNlbm/a is real. Evety Cafi6mlen needs to take lmmedWe acffw to mduuce energy conswnpow. <br />Far a bat of $imple WRYS You can ►educe demand and cut your malty Coats, see ow Website: nmca/,N,hw arb Ca M. <br />California Environmental Protection Agency <br />Printed on Recyded paper <br />