Page 211 - Shale Shakers Drilling Fluid Systems
P. 211

CENTRIFUGAL PUMPS  193



                                                TABLE 11-2. (continued)


                       Nom-  Outside   Identification  Wall  Inside  Area  Transverse  Moment Weight
                       inal  Diam.    Steel    Stain-  Thick-  Diam-  of  Internal Area  of  Pipe
                       Pipe                     less  ness   eter  Metal            Inertia
                       Size        Iron  Sched.  Steel  (t)  (d)         (a)   (-•0   (/)  Pounds
                                   Pipe   No.  Sched.             Square Square  Square     per
                      Inches  Inches  Size      No.  Inches  Inches  Inches  Inches  Feet  Inches 4  foot
                                                 5S   .218  23.564  16.29  436.10  3.0285  1151.6  55.37
                                           10   10S   .250  23.500  18.65  433.74  3.0121  1315.4  63.41
                                   STD     20         .375  23.250  27.83  424.56  2.9483  1942.0  94.62
                                    XS                .500  23.000  36.91  415.48  2.8853  2549.5  125.49
                                           30         .562  22.876  41.39  411.00  2.8542  2843.0  140.68
                       24   24.00         40          .688  22.624  50.31  402.07  2.7921  3421.3  171.29
                                          60          .969  22.062  70.04  382.35  2.6552  4652.8  238.35
                                           80        1.219  21.562  87.17  365.22  2.5362  5672.0  2%. 58
                                          100        1.531  20.938  108.07  344.32  2.3911  6849.9  367.39
                                          120        1.812  20.376  126.31  326.08  2.'2645  7825.0  429.39
                                          140        2.062  19.876  142.11  310.28  2.1547  8625.0  483.12
                                          160        2.344  19.312  159.41  292.98  2.0346  9455.9  542.13
                                           10-        .312  25.376  25.18  505.75  3.5122  2077.2  85.60
                       26   26.00  STD                .375  25.250  30.19  500.74  3.4774  2478.4  102.63
                                    XS    20          .500  25.000  40.06  490.87  3.4088  3257.0  136.17
                                          10          .312  27.376  27.14  588.61  4.0876  2601.0  92.26
                                   STD                .375  27.250  32.54  583.21  4.0501  3105.1  110.64
                       28   28.00   XS    '26         .500  27.000  43.20  572.56  3.9761  4084.8  146.85
                                          30          .625  26.750  53.75  562.00  3.9028  5037.7  182.73
                                                5S    .250  29.500  23.37  683.49  4.7465  2585.2  79.43
                                          10    10S   .312  29.376  29.10  677.76  4.7067  3206.3  98.93
                       30   30.00  STD                .375  29.250  34.90  671.96  4.6664  3829.4  118.65
                                   XS     20          .500  29.000  46.34  660.52  4.5869  5042.2  157.53
                                          30          .625  28.750  57.68  649.18  4.5082  6224.0  196.08
                                          10          .312  31.376  31.06  773.19  5.3694  3898.9  105.59
                                   STD                .375  31.250  37.26  766.99  5.3263  4658.5  126.66
                       32   32.00  XS     20          .500  31.000  49.48  754.77  5.2414  6138.6  168.21
                                          30          .625  30.750  61.60  742.64  5.1572  7583.4  209.43.
                                          40          .688  30.624  67.68  736.57  5.1151  8298.3  230.08
                                          10          .344  33.312  36.37  871.55  6.0524  5150.5  123.65
                                   STD                .375  33.250  39.61  868.31  6.0299  5599.3  134.67
                       34   34.00  XS     20          .500  33.000  52.62  855.30  5.93%  7383.5  178.89
                                          30          .625  32.750  65.53  842.39  5.8499  9127.6  222.78
                                          40          .688  32.624  72.00  835.92  5.8050  9991.6  244.77
                                          10          .312  35.376  34.98  982.90  6.8257  5569.5  118.92
                                   STD                .375  35.250  41.97  975.91  6.7771  6658.9  142.68
                       36   36.00  XS     20          .500  35.000  55.76  962.11  6.6813  8786.2  189.57
                                          30          .625  34.750  69.46  948.42  6.5862 10868.4  236.13
                                          40          .750  34.500  83.06  934.82  6.4918 12906.1  282.35
                                                                l
                     Identification, wall thickness and weights are extracted from ANSI B36.10 and B36 19. The notations
                     STD, XS. and XXS indicate Standard, Extra Strong, and Double Extra Strong pipe respectively.


        For a turbulent flow situation, the friction factor   number of 22,000. The friction factor may be
        (f) may be calculated from the equation:              determined on the left side of the chart. For the
                                                              example just presented, the friction factor would
                                                              be 0.025:



          Friction curves, presented in Figure 11-6, may
        be used to simplify the calculations. On the left
        side of the chart, locate the 6-inch, Schedule 80       The length of pipe connected to the pump must
        value. Follow this value horizontally until the line  now be determined. Valves, elbows, tees, and
        veers upward; then follow the trend between the       swages create more pressure loss, or head loss,
        lines labeled "inside diameter." This trend line will  than a straight pipe. The equivalent lengths of
        intersect the vertical line representing a Reynolds   these items are presented in Table 11-1. For
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