Document 151k4BBe3E14X1e1kXnwaybyZ

T able ,2. Circular "Equivalents of Rectangular D ucts for Equal F riction-- (Continued) American Society of Heating and Ventilating Engineers Guide, 1929 426 OS 1 f. ggg CO Q 8 Pi Chapter XXVIII--Air Duct Design and Construction ON* ,C CO Q mo t* <0 'O'C'O WON <** 427 T able 2. Circular Equivalents of Rectangular D ucts for Equal F riction-- (Continued) CQ to >CeO> S NCO s 00 > pc ^ o O'O^ o m in to oe.i Oco co co cO co co Oaococ0o0 cot 5 - o s C K Oi 0.0.0. Oi Oi . * -o ^ s NK f*5 ^ 0%0 NO |h 00 NOl O00 CMO fCNO f0*0? CO, 00 OCO CO s N <o s 8 33 3 3.3 3 33S gS'f! ESE J2SR Sgig S o IO ow> 55.0 56.1 57.2 57.2 58.3 59.4 58.3 59.4 60:5 59.3 60.5 61.6 60^3 61.5 62.7 61.3 62.5 63.7 62.2 63.5 64.7 63.2 64.4 65.7 64.1 65.4 66.6 65.0 66.3 67.6 65.9 67.2 68.5 66.8 68.1 69.4 67.6 69.0 70.3 68.4 69.8 71.2 69.2 70.7 72.1 . 70.1 71.5 73.0 70.9 72.3 73.8 .71.7 73.2 74.6 72.5 74.0 75.5 73:3 74.7 76.3 74.1 ! 75.5 77.1 74.8 76.3 77.8 1 75.5 1 77.1 | 78.7 cc o n t. m in n >o s oo co e> oi o. co co s o 1 .63.8 64.9 66.0 66.0 67.1 68.2 67.1 68.2 69.3 70.4 68.1 69.3 70.4 71.5 69.1 70.3 71.5 72.6 70.1 71.3 72.5 73.7 71.1 72.3 73.5 74.7 72.0 73.3 74.5 75.7 ! 72.9 74.2 75.5 76.7 73.9 75.2 76.4 77.7 74.8 76.1 77.4 78.6 75.7 77.1 78.4 79.6 76.6 78.0 79.3 80.6 77.4 78.9 , 80.3 81.5 78.3 79.8 81.2 82.5 79.1 80.6 82.0 83.4 f 79.9 81.4 82.8 84.3 80.7 82:2 ' 83.7* 85.1 81.6 83.0 84.5 85.9 74.8 ! 75.9 77.0 77.0 78.1 78.1 1. 79.2 ` 80.2 79.2 80.3 81.4 81.2 82.4 82.1 83.4 83.1 84.4 84.0 , 85.0 85.9 85.3 86.3 87.2 86.9 88.2 f8 7 .8 : -8 9 .1 - 88. j *90.0 1 81.4 82.5 83.6 83.6 84.7 85.8 84.7 85.8 85.8 1 86.9 86.8 88.0 86.9 88.0 88.0 89.1 89.1 ; 90.2 87.8 89,6 : 90.2 91.3 88.8 , 90.0 91.2 92.4 1 89.7 91.0 92.2 93.4 90.7 92.0 93.2 94.4 91.7 93.0 94.2 95.4 92:6 | 93.9 95.2 96.4 .* >o <o <e <e oM> ro o> - o*r> > ro-> r**) O5. --<?. 92.4 93.5 94.6 94.6 , 95.7 95.7 96.8 1 96.8 97.9 96.7 97.9 99.0 97.8 99.0 100.1 98.8 100.0 101.2 * O0 t-- r- OcocNoo*o ,, oo CcOo o a CC^.'O >.