56 



BULLETIN 852, TJ. S. DEPARTMENT OF AGRICULTURE. 



Table 6.— Fok Estimating the Capacity of Modern Concrete Pipe Lines Made by Dry-Mixture 



Process. 1 



Based on formula V= C t H^d"- 6 ® using 0.310 for the coefficient C a . For instance, 2 second-feet of water, 

 the equivalent of SO miner's inches measured under a 6-inch pressure, or of 100 miner's inches measured 

 under a 4-inch pressure, or of S9S gallons per minute, will be conveyed by a 12-inch pipe, with a velocity 

 of 2.55 feet per second with a loss of head (grade) of 3.04 feet for each 1,000 feet of pipe. 



Quantity (Q). 



Inside diameter, in inches and corresponding area, A, in square feet. 



Sec. 



rt. 



Miner's 

 inches. 



A(40) B(50) 



Gal- 

 lons 

 per 

 min- 

 ute. 



6 



4 = 0.196 



V 



II 



8 

 -4 = 0.349 



// 



10 



4 = 0.545 



V ' H 



12 



4 = 0.785 



14 



4 = 1.069 



II 



16 



4=1.396 



II 



0.1 



.2 

 .3 

 .4 

 .5 



.6 

 .7 

 .8 

 .9 

 1.0 



1.2 



1.4 



1.6 

 1.8 



2.0 



2.2 

 2.4 

 2.6 



2.8 

 3.0 



3.2 



3.4 

 3.6 

 3.8 

 4.0 



4.5 

 5.0 

 5. 5 

 6.0 

 6.5 



4.5 

 5.0 

 5.5 

 6.0 

 6.5 



7.0 

 7.5 

 8.0 

 8.5 

 9.0 



9.5 



10.0 

 11.0 

 12.0 

 13.0 



14.0 

 15.0 

 16.0 

 17.0 

 18.0 



20.0 

 22.0 

 24.0 

 26.0 

 2S.0 



30.0 

 32.0 



96 

 104 

 112 

 120 



128 

 136 

 144 

 152 

 160 



1*0 

 200 

 220 

 240 

 260 



180 



200 

 220 

 240 

 260 



280 

 300 

 320 

 340 

 360 



380 

 400 

 440 

 480 

 520 



560 

 600 



640 

 f,-0 

 720 



800 



880 



960 



1,040 



1,120 



1.200 

 1,280 



5 



10 

 15 

 20 

 25 



30 

 35 

 40 

 45 

 50 



60 

 70 

 80 

 90 

 100 



110 



120 

 130 

 140 

 150 



160 

 170 

 180 

 190 

 200 



225 

 250 

 275 

 300 

 325 



225 

 250 

 275 

 300 

 325 



350 

 375 

 400 

 425 

 450 



475 

 500 

 550 

 600 

 650 



700 

 750 

 800 

 850 

 900 



1,000 

 1,100 

 1,200 

 1,300 

 1,400 



1,500 

 1,600 



45 

 90 

 135 

 180 

 225 



270 

 315 

 360 

 405 

 449 



539 

 629 

 719 

 809 



1,089 

 1,168 

 1,258 

 1,348 



1,438 

 1,528 

 1,618 

 1,708 

 1,797 



2,022 

 2,247 

 2,472 

 2,697 

 2,922 



2,022 

 2,247 

 2,472 

 2,697 

 2,922 



3,146 

 3,371 

 3,596 

 3,821 

 4,046 



4,271 

 4,496 

 4,948 

 5,398 



5,847 



6,297 

 6,747 

 7,197 

 7,647 

 8,096 



8,996 

 9. S96 

 10, 795 

 11,695 

 12,594 



13, 492 

 14,390 



Feet. 

 0.51 

 1.02 

 1.53 

 2.04 

 2.55 



3.06 

 3.56 

 4.08 

 4.58 

 5.10 



6.11 

 7.13 

 8.15 

 9.17 

 10.20 



11.20 

 12.20 



Feet. 

 0.28 

 1.06 

 2.60 

 4.61 

 7.24 



10.40 

 14.00 

 18.40 

 23.40 

 28.80 



42.00 

 56. 00 

 74.00 

 93. 00 

 105. 00 



140.00 

 165. 00 



Feet. 



0.29 

 .57 

 .86 



1.14 



1.43 



1.72 

 2.01 

 2.29 



2.58 

 2.87 



3.44 

 4.01 



4.58 

 5.16 

 5.73 



6.30 

 6.87 

 7.45 

 8.02 

 8.59 



9.17 



9.74 

 10.30 

 10.90 



Feet. 



0.07 

 .15 

 .57 



1.00 



1.58 



2.30 

 3.15 

 4.07 

 5.16 

 6.38 



9.15 

 12. 50 

 16.30 

 20.70 

 25.40 



30. 80 

 36.'50 

 43.00 

 50.00 

 57.30 



65.30 

 73.50 

 82.50 

 92.20 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



Feet. 



1.10 

 1.2S 

 1.47 

 1.65 

 1.83 



2.20 

 2.57 

 2.93 

 3.30 

 3.67 



4.03 

 4.40 

 4.77 

 5.13 

 5.50 



5.87 

 6.23 

 6.60 

 6.97 

 7.33 



8.25 

 9.17 

 10.10 

 11.00 

 11.90 



0.71 

 .96 

 1.26 

 1.60 

 1.96 



2.84 

 3.88 

 5.07 

 6.46 

 7.95 



9.50 



11.40 

 13. 30 

 15. 50 

 17.80 



20.20 

 22.80 

 25. 60 

 28.50 

 31. 50 



39. 70 

 49.10 

 59. 60 

 0.70 

 82.70 



0.76 

 .89 

 1.02 

 1.14 

 1.27 



1.53 



1.78 

 2.04 

 2.29 

 2.55 



2.80 

 3.06 

 3.31 

 3.56 

 3.82 



4.07 

 4.33 

 4.58 

 4.84 

 5.09 



5.73 

 6.37 

 7.00 

 7.64 

 8.27 



0.27 

 .37 

 .48 

 .61 

 .75 



1.09 



1.48 

 1.95 

 2.44 

 3.04 



3.66 

 4.37 

 5.11 

 5.92 

 6.81 



7.74 

 8.77 

 9.82 

 10.80 

 12.20 



15.30 

 18.80 

 22.80 

 27.10 

 31.80 



0.75 

 .84 

 .94 



1.12 

 1.31 

 1.50 

 1.68 

 1.87 



2.06 

 2.24 

 2.43 

 2.62 

 2.81 



2.99 

 3.18 

 3.37 

 3.55 

 3.74 



4.21 

 4.68 

 5.15 

 5.61 

 6.08 



0.22 

 .27 

 .34 



.48 

 .66 

 .84 

 1.09 

 1.35 



1.63 

 1.93 



2.28 

 2.64 

 3.04 



3.44 

 3.90 

 4.37 

 4.86 

 5.39 



6.81 

 8.41 

 10.20 

 12.10 

 14.20 



0.86 

 1.00 

 1.15 

 1.29 

 1.43 



1.58 

 1.72 

 1.86 

 2.00 

 2.15 



2.29 

 2.44 

 2.59 

 2.72 

 2.86 



3.24 

 3. 58 

 3.94 

 4.30 

 4.66 



0.24 

 .33 

 .43 



.54 

 .67 



.82 

 .97 

 1.13 

 1.30 

 1.50 



1.71 

 1.94 

 2.18 

 2.41 

 2.67 



3.64 

 4.53 

 5.49 

 6.54 

 7.67 



18 



4 = 1.767 



V 



2. 55 

 2.83 



3.11 

 3.40 

 3.68 



3.96 

 4.24 

 4.53 

 4.81 

 5.10 



5.38 

 5.66 

 6.22 

 6.79 

 7.36 



7.92 

 8.49 

 9.06 

 9.62 

 10.20 



11.30 

 12.40 

 13.60 

 14.70 

 15. SO 



II 



1.85 

 2.25 

 2.72 

 3.24 

 3.80 



4.40 

 5.05 

 5.77 

 6.50 

 7.30 



8.16 

 8.98 

 10. SO 

 12.90 

 15.20 



17.70 

 20.30 

 23. 00 

 26.00 

 29.30 



35.90 

 43. 30 

 51. 90 

 60.80 

 70.10 



20 



4=2.182 



V 



2.06 

 2.29 

 2.52 

 2.75 

 2.98 



3.21 

 3.44 

 3.64 

 3.90 

 4.12 



4.35 

 4.58 

 5.04 

 5.50 

 5.96 



6.42 

 6.87 

 7.33 

 7.79 

 8.25 

 9.17 

 10.10 

 11.00 

 11.90 

 12.80 



13. 70 

 14.70 



II 



1.05 

 1.29 

 1.57 

 1.86 

 2.18 



2.54 

 2.92 

 3.32 

 3.74 

 4.18 



4.66 

 5.17 

 6.26 

 7.43 

 8.76 



10.20 

 11.70 

 13.20 

 14.90 

 16.80 



20.70 

 25.10 

 28.80 

 34.90 

 40.40 



46. 20 



53. 30 



22 



4=2.640 



V 



1.70 

 1.89 

 2.08 

 2.27 

 2.46 



2.65 

 2. .84 

 3.03 

 3.22 

 3.41 



3.60 

 3.79 

 4.17 

 4.55 

 4.92 



5.30 

 5.60 

 6.06 

 6.44 

 6.82 



7.58 

 8.33 

 9.09 

 9.85 

 10.00 



11.40 

 12.10 



II 



0.63 

 .78 

 .95 

 1.13 

 1.32 



1. 57 

 1.77 

 2.01 

 2.26 

 2.54 



2.84 

 3.15 

 3.80 

 4.53 

 5.29 



6.14 

 6.85 

 8.02 

 9.05 

 10.20 



12.60 

 15. 10 

 18.10 

 21.30 

 24.60 



28.40 

 32. 00 



24 



4=3.142 



V 



1.43 

 1.59 

 1.75 

 1.91 

 2.07 



2.23 

 2.39 

 2.55 

 2.71 

 2.86 



3.02 

 3.18 

 3.50 

 3.82 

 4.14 



4.46 

 4.77 

 5.09 

 5.42 

 5.73 



6.37 

 7.00 



7.1,1 

 8.27 

 8.91 



9. 55 

 10.20 



II 



0.40 

 .50 

 .60 

 .71 

 .84 



.97 

 1.12 

 1.28 

 1.44 

 1.50 



1.79 

 1.98 

 2.41 

 2.86 

 3.37 



3.90 

 4.46 

 5.08 

 5.75 

 6.45 



7.94 

 9.58 

 11.40 

 13. 40 

 L5.60 

 17.90 

 20.40 



SO 



4=4.909 



V 



0.92 

 1.02 

 1.12 



1.22 

 1.32 



1.42 

 1.53 

 1.63 

 1.73 

 1.83 



1.94 

 2.04 

 2.24 

 2.45 

 2.65 



2.85 

 3.06 

 3.26 

 3.46 

 3.67 



4.07 

 4.48 



4. N9 



5. 30 

 5.70 



6.11 



6.52 



II 



0.13 

 .16 

 .19 

 .22 

 .26 



.30 

 .35 

 .39 

 .45 

 .50 



.56 

 .62 

 .74 

 .88 

 1.04 



1.20 

 1.39 

 1.57 

 1.77 

 2.00 



2.46 

 2.98 

 3.55 

 4.10 

 4.82 



5.59 

 6.30 



36 



4 = 7.068 



V 



0.64 

 .71 

 .78 

 .85 

 .92 



.99 

 1.06 

 1.13 

 1.20 

 1.27 



1.34 



1.41 

 1.56 

 1.70 

 1.84 



1.98 

 2.12 

 2.26 

 2.40 

 2.55 



2.83 

 3.11 

 3.40 

 3.68 

 3.96 



4.24 

 4.53 



II 



0.05 

 .06 

 .07 

 .09 

 .10 



.12 

 .13 



.15 

 .17 

 .19 



.21 

 .24 

 .29 

 .34 

 .40 



.46 

 .53 

 .60 

 .68 



.77 



.94 

 1.14 

 1.37 

 1.60 

 1.85 



2.12 

 2.43 



i This is the table that should be used in the design of pipe lines made from units 2 to 3 feet long, as 

 ordinarily made by hand in the pipe yards of the Pacific Coast States. 



