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Heating Ventilating Air Conditioning Guide 1938 Table 3. Pressure Losses in Dichlorodifluoromethane Suction Refrigerant Lines Coppeb Pipe Actual O.D. Inches Capacity BTU peb Houb 100Pbxssube Deop in Pounds peb Square Inch peb Ft* -10 Repbiqebant Temperature Deo F 0 10 20 30 40 50 2,000 4,000 6,000 0.3 0.3 0.2 0.2 0.2 0.1 0.1 1.3 1.0 0.8 0.7 0.6 0.5 0.4 2.8 2.2 1.8 1.5 , 1.2 1.0 0.9 8,000 4.8 3.8 3.1 2.6 2.1 1.8 1.5 10,000 7.4 5.8 4.8 3.9 3.3 2.8 2.3 X 12,000 10.5 8.4 6.8 5.6 4.7 4.0 3.3 .14,000 14.0 11.0 9.1 7.6 6.4 5.4 4.5 16,000 14.5 12.0 9.8 8.3 7.0 5.8 18,000 15.0 12.3 10.4 8.7 7.2 20,000 15.0 12.7 10.7 8.9 7,000 10,000 15,000 0.4 0.3 0.3 0.2 0.2 0.2 0.1 1.0 0.7 0.5 0.5 0.4 0.3 0.3 1.9 1.5 1.2 1.0 0.8 0.7 0.6 20,000 3.3 2.6 2.1 1.7 1.4 1.2 1.0 ix 25,000 35,000 5.0 4.0 3.2 2.7 2.2 1.9 1.6 9.7 7.7 6.2 5.1 4.3 3.6 3.0 45,000 60,000 70,000 15.8 12.6 10.0 8.4 7.0 5.9 4.9 14.8 12.2 10.2 8.6 14.0 11.7 10,000 15,000 20,000 0.3 0.2 0.2 0.2 0.1 0.1 0.1 0.7 0.5 0.4 0.3 0.3 0.2 0.2 1.2 0.9 0.7 0.6 0.5 0.4 0.4 30,000 2.6 2.1 1.6 1.3 1.1 0.9 0.8 m 40,000 50,000 4.6 3.6 2.8 2.3 1.9 1.6 1.4 7.0 5.5 4.4 3.5 2.9 2.5 2.1 60,000 '80,000 100,000 10.0 7.8 6.2 5.0 4.2 3.5 14.0 11.0 8.7 7.3 6.2 13.5 11.3- 9.5 3.0 5.2 8.2 30,000 40,000 50,000 1.6 1.3 1.0 0.8 0.7 0.6 0.5 2.7 2.1 1.7 1.4 1.1 0.9 0.8 4.2 3.2 2.5 2.1 1.7 1.4 1.2 60,000 6.1 4.5 3.6 2.9 2.4 2.0 1.7 IX 70,000 80,000 8.7 6.3 4.8 3.8 3.1 2.6 2.2 8.4 6.3 4.9 4.0 3.3 2.8 90,000 ,. 100,000 *- 120,000 8.0 6.2 4.9 4.1 3.5 10.0 7.6 6.1 5.0 4.2 8.6 7.0 . 5.9 140,000 9.5 7.9 Length of tubing includes the average number of fittings. 488 Chapter 24. Cooling and Dehumidification Methods Table 3. Pressure Losses in Dichlorodifluoromethane Suction Refrigerant Lines (Continued) Coppeb Pipe Actual O.D. Inches Capacitt BTU feh Hour Pressure Drop in Pounds peb Square Inch peb 100 Ft* Repbiqebant Tempebatube Deq F -10 0 10 20 30 40 so 50,000 100,000 150,000 0.7 0.5 0.4 0.3 0.3 0.2 0.2 2.6 1.8 1.4 1.1 0.9 0.8 0.7 5.6 3.9 3.0 2.4 2.0 1.6 1.4 2X 2% 3X 3X 200,000 250,000 300,000 350,000 400,000 50,000 100,000 150,000 200,000 250,000 300,000 350,000 400,000 450,000 500,000 550,000 600,000 200,000 300,000 400,000 500,000 600,000 700,000 -800,000 900,000 1,000,000 300,000 400,000 500,000 600,000 700,000 800,000 900,000 1,000,000 1,100,000 1,200,000 1,300,000 1,400,000 9.8 6.7 5.2 4.1 3.4 2.8 2.4 14.8 10.3 8.0 6.3 5.1 4.2 3.6 14.5 11.3 9.0 7.2 6.0 5.0 19.5 15.3 12.0 9.7 7.8 6.7 19.6 15.3 12.5 10.0 8.5 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.7 0.6 0.5 0.4 0.3 0.2 0.2 1.6 1.2 1.0 0.8 0.6 0.5 0.4 2.8 2.1 1.7 1.4 1.1 0.9 0.7 4.3 3.4 2.6 2.1 1.7 1.3 1:1 6.1 4.5 3.7 3.0 2.4 1.9 1.5 8.2 6.0 5.0 4.0 3.2 2.5 2.0 7.8 6.5 5.1 4.2 3.3 2.7 7.7 6.4 5.3 4.0 3.5 7.8 6.4 5.0 4.2 7.7 6.2 5.1 7.4 6.2 1.2 1.0 0.8 0.6 0.5 0.4 0.4 2.6 2.0 1.6 1.3 1.0 0.8 0.7 4.5 3.4 2.6 2.1 1.7 1.4 1.3 7.3 5.4 4.1 3.3 2.7 2.2 1.9 8.1 6.0 4.7 3.8 3.1 2.7 8.4 6.5 5.2 4.2 3.5 8.6 6.8 5.5 4.6 8.7 7.0 5.9 8.9 7.3 1.2 0.9 0.7 0.6 0.5 0.4 0.3 2.0 1.6 1.3 1.0 0.8 0.7 0.6 3.2 2.5 1.9 1.6 1.3 1.0 0.9 4.6 3.6 2.8 2.2 1.8 1.5 1.3 6.4 4.9 3.8 3.0 2.5 2.0 1.7 8.7 6.4 4.9 3.9 3.2 2.5 2.2 8.2 6.2 4.9 3.9 3.2 2.7 7.7 6.1 4.9 4.0 3.3 9.4 7.3 5.8 4.8 4.0 8.7 6.9 5.6 4.8 8.0 6.6 5.6 9.3 7.6 6.4 Length of tubing includes the average number of fittings. 489 I