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<br /> SHEET ME:TAL GAGES
<br /> FOR RECTANGULAR DUCT CONSTRUCTIOND,' SIZE:S FOR TINNE:RS RIV~TS
<br />ALUMINUM STEE'I.U.5. MAXIMUM SIDE, TYPE 01' TRANSVERSE GA GE OF META L MINIMUM
<br />SiJS.GAGE STD. GAGE: INCHC 5 JOINT CONNECTIONS BRACING rOBE SEAMEO SIZE OF RIVET
<br />24 N Up to /2 5, Drive, Poc/t.et orBor Slips, 30 /2 oz.
<br /> on 7ft lOin centers None 28 /401.
<br /> 13 fo 24 S. Drive, Pocllet or Bar Slips. None 26 lib.'
<br />22 on 7 it lOrn. centers 24 ,~ lb.
<br /> 24 /, I,i in. angles 4ft. 22
<br /> '5 to 30 5,Drlve /In.Pocllet ar/li18ar 2 lb.
<br /> 5flps,o~ 7 ft.fOin.cente~sb from jOint 20 3 lb.
<br /> 31 to 40 Drive /In Pocket Or/in Bar 1,1 ,i In angles 4ft. '8 4 lb.
<br /> SlipS, on 7 if IOin.cenfersb from loint
<br />20 22 II In Angle ConnectiOns,or It I
<br /> . 4/ to 60 Pocket or 'pin Bar Shps Wltft Ii II/Ii in angles
<br /> 11m ,JJn.barremforClng 4 ft. from jomt
<br /> -- on 7 if 10m cenfersb
<br /> {fin. Angle Connections ar/fm If ~ If.", in. diagonal
<br />'8 20 61 to 90 Pocket or It m.Bar Slips 3fl angles.orlfllf'/In.
<br /> 9in m:J.nmum centers with ongli's 2ft fromjoinl
<br /> liln.~i'n bar reinforCing'
<br />a AI! :mlnsulated ducfs 18 In and larger shall be cross- brcl'-c'n unless mode SHE:E:T METAL GAGES
<br />of metal two gages heovitH than shown FOR OIRCULAR DUCT CONSTRUOTIONe
<br />b Duct sections of 3 ft. gin. may be used with bracing angles amlfted,lnsfeod GAGEO
<br />of 7 ff./(J In lengths -wrfh joints Indicated DIAMErER OF'OUGr SEAM LAP JOINr
<br />C For ducts larger /'han !hase sllOwn in tabfes see I)pecif,callans. US.Sld 26 Up fa 16 in-Steel Flat bck Riveted
<br />d Circular ducls may be one gage lighter wtren installed In a protecfed area. B8S 26 Up to 12in.-Aluminum Flat lock Riveted
<br /> US5td 24 17 to JO In . Steel Flat lack Rivefed
<br /> 88S 24 IJ to 241/'I-Aluminum Flat IO(/( Riveted
<br /> ~ ~.R H.machlnc' bolts (~-Palnt 011 Joints t6lth heavy
<br /> ~ glyptal primer
<br /> m spaced approx.B"OG ,
<br /> for hOr/Ionto! -m- -tH~- .2 fb. Tint!tJ;~
<br />~ -.L ducts,5 O.G for - " nvefs 3"O.C.
<br /> vertlCol duct5~--:..c' Jjf Ai
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<br />REINFORCED STANDING SEAM ,
<br />STANDING SEAM ANGL E CONNECTION
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<br /> '2.-0>0 - ' , "
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<br /> ....,.-,.", 16 .;.-
<br /> GROOVED SEAM DRIVE SLIP NOTES
<br /> A II surfaces of aluminum whiCh will come
<br /> in contact With steel,concrete,ar grout
<br /> PREFERRED TYPES OF Shall be painted with CA - 50 cold applied
<br /> TRANSVERSE: SEAMS coal tar paint (See specifications).
<br /> A/I seams shall be air tight.
<br /> Arrotils, thus:~ Indica Ie dlrecllon
<br /> of Olr flow
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<br />BAR SLIP ~ ~
<br /> REINFORCED POCK E T SLIP
<br /> BAR SLIP
<br /> Solder ~
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<br />5 SLIP END SLIP RIVETED SEAM r
<br /> '....-..-
<br /> PERMISSIBLE TYPES OF UIVlTCD 'TATES
<br /> TRANSVERSE SEA MS DEP~f'fTME"'T OF HiE INTERIOR
<br /> 8()REJ:lU OF RECLAIWATION
<br /> ~ ~ STAflIDARD DESIGNS
<br /> HEATING AND VENTILATIN/i EQUIPMENT
<br /> DUCT CDNSTRUCTION-"'YPICAL
<br /> .._5UtlJITTEO_;ef:;j.T~ //
<br /> DOUBL E S€AM PITTSBURGH SCAM DRAWN J.f.:.~:L_. OD "Q""
<br /> TYPE:S OF LONGITUDINAL SE:AMS TRACED. .t::!". c. _. _... ..RECOMMENDED
<br /> C;HECI(EOtJ.Lt J,-{: AJ"IC J:l~""OV~D ~"~f. -/M~
<br /> ~Ii- '4 ~~', l:'.CIILA. DuCT T.'Ll t~T("DtO .'I/FLOII "'_.110"5 ... ~"''''"'' ,
<br /> o L~. 'Iores ADDEO DtNVEfIf. GDLOIIIADO,AUGUST "."112 40'D-5ft6
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