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96 FLOW OF FLUIDS
TABLE 6.3. Approximate Computation of Pressure Drop of Liquids and Gases in Highly Turbulent Flow in Steel Pipes"
Nominal Nominal
pipe Pipe
Size Schedule Value Size Schodule Value
In. Number of Cz In. Number ofCz
'/a 40 s 7 920 000 12 20 0.0157
80 x 2d.200:OOO 30 0.0168
... s 0.0175
40
Y2 40 s ... x 0.0180
80 x
0.0195
160 60 0.0206
... xx
W n w % 40 s 21.200 100 0.0267
0.0231
80
EO x 36,900 120 0.0310
10 -= .1 160 100,100 140 0.0350
160
0.0423
-1.09 ... xx 627,000
10
9 -- .08 1 40 s 5 950 14 20 0.00949
0.00996
80 x
9:640
-- .07 160 22.500 30 s 0.01046
40
?- ... xx 114,100 ... x 0.01099
.06
0.01155
--
1%
40 s
80 x 60 O.OU44
160 80 0.01416
... YX 100 0.01657
120 0.01898
2 40 s 140 0.0218
EO x 160 0.0252
160
... xx 16 10 0.00463
20 0.00421
2% 40 s 66.7 30 s 0.00504
80 x 91.8 40 x 0.00549
160 146.3 60 0.00612
... xx 380.0
80 0.00700
3 40 s 21.4 100 0.00804
80 x 28.7 120 0.00926
160 48.3 140 0.01099
... xx 96.6 160 O.OU44
3% 40 s 10.0 18 10 0.00247
80 x 13.2 20 0.00256
4 40 s 5.17 Jz, 0.00266
0.00276
80 x 6.75 .. x 0.00287
120 8.94 40 0.00298
160 11.80
... xx 18.59 60 0.00335
80 0.00376
5 40 s 1.59 100 0.00435
80 x 2.04 120 0.00504
120 2.69 140 0.00573
160 3.59 160 0.00669
... xx 4.93
20 10 0.00141
6 40 s 0.610 20 s 0.00150
80 x 0.798 30 x 0.00161
120 1.015 40 0.00169
160 1.376 60 0.00191
... xx 1.861
80 0.00217
8 20 0.133 100 0.00251
30 0.135 120 0.00287
- 40 s 0.146 140 0.00335
0.163
160
60
0.00385
_- ,0015 EO x 0.185 24 10 0.000534
-
- - 100 0.211 20 5 0.000565
.. x
- 120 0.252 30 0.000597
O.WO614
140
0.289
1.0 -- .001 ... xx 0.317 40 0.000651
-- .orlo9 160 0.333 60 0.000741
80 0.000835
10 20 100
30 120 0.030972
40 s 140 0.001119
O.OOU74
60 x 160 0.001478
80
100
120
140
160
=Ae,, = C,C,/p psi/lOO ft, with p in ib/cuft.
(Crane Co. Flow of Fluids through Fittings, Valves and Pipes, Crane Co., New York, 1982).