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<br />TransItion Duels - The proteellon of non-standard duels <br />should be reviewed by the authorily having jurlsdlcllDn. <br />PYRO-CHEM KITCHEN KNIGHT II recommends lhallransl- <br />lion ducts be protected as follows; <br /> <br />a. Translllon ducts - larger to smaller <br /> <br />In cases where the ducUplenum Intarfaea openIng Is <br />largar than the final axhausl duel, measure lhe perlms- <br />ler/diameter of the duct halfway between the largeot <br />and smallesl sacllon (or lhe average parlmater/dlame- <br />ler). Tha nozzle Is tD be locatad wilhln 0-6 In. (15.2 em) <br />of the ducUplenum intarfaca (not althe point where (he <br />measurement was taken), cantered under (he final <br />exhaust duel opening. See Figure 3-1 c. .. <br /> <br /> <br />112 WAY INTO <br />TRANSITIDN <br /> <br />~ <br /> <br />008f1JPC <br /> <br />Figura 3-1 c. <br /> <br />b. Translllon duels - smaller to larger <br /> <br />In cases where the ducUplenum Interface Dpenlng Is <br />smaller than the final exhausl duct, measure the <br />perlmalar/diamater of tha final exhaust duct. The <br />nozzle(s) is to be localed within 0-6 In. (15.2 em) of the <br />ducUplenum Interfaca, cantered In tha opening. See <br />Figure 3-1 d. <br /> <br />I <br />I <br />PERIMETER - -I - <br />MEASUREMENT I <br />I <br />I <br />, <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br /> <br />~ <br /> <br /> <br /> <br />DOIIt1.4PO <br /> <br />Fig ure 3-1 d <br /> <br />Chapter 3 - System Design <br />Page 3-3 <br />REV. 2 <br /> <br />c. Mulllpla risers <br /> <br />In cases of mulUple rlsBs, Bach riser Is prDtacled as an <br />Individual duel. See Figure 3-1 e. <br /> <br /> <br />00I116PO <br /> <br />" PLENUM <br /> <br />Figure 3-1 a <br /> <br />Electrostatic Precipitator - Duels utilizing eleetroslallc <br />preclpllators must be protected above and below the unll. <br />Standard duct noziles are used In this application. See <br />.. FIgure 3-H. <br /> <br /> <br />FIgure 3-1f <br /> <br />.. Plenum Protection <br /> <br />The Model 1 H nozzle, Part No. 551029, Is a one (1) flow <br />nozzle used for plenum protection. A single 1 H nozzle can <br />protect a plenum (with single or V-bank fillers) 10ft (3.1 m) <br />long by 4 fl. (1.2 m) wide. Dividing the length Inlo sections <br />equallD or less than 10 fl. (3.1 m) In lenglh and positioning <br />a nozzle af IhB start of each secllon can be done toprotecl <br />longer plenums. . <br /> <br />PN551274(2) <br /> <br />ULEX 3830 <br />April 1, 2004 <br />