Page 27 - Estimator's Piping Man-Hour Manual 5E
P. 27

10   Section One-SHOP FABRICATION

                                  PIPE BENDS

                         Heavy Wall—Over 45 ° to 9O° Inclusive


                         Labor Only For Making Pipe Bends With Plain Ends
                                  Carbon Steel Material

                                 NET MAN HOURS EACH
          Nominal                     WALL THICKNESS IN INCHES
           rx;_
           ripe
           Size       7.50   1.00    1.25   1.50   1.75   2.00   2.25    2.50
          4" or Less   6.6     7.5    8.7   10.1    „      „      ..     ..
          5            ,.      8.6   10.1   11.8    13.5   15.7   -      ..
          6            ..     10.2   11.8   14.2    16.0   19.4   22.6   ,.
          8                   13.9   14.4   17.0    19.7   23.0   27.2   31.4
          10                  ..     17.8   19.5   21.5    24.8   28.7   33.8
          12           „      -      ..     22.1   23.3    26.9   31.5   36.8
          14           -             ..     27.0   28.2    31.3   36.0   42.5
          16           ..     .,     —       ..    34.6    37.3   41.4   48.0
          18           -      -      ..      -      ..     42.5   47.9   56.6
          20           -      ..     ..      -      -      55.8   56.4   65.2
          22                         ..      -      ..     ..            74.0
          24           —      —      --      --     --     --     --     91.1
                       --
                              --
                      2.75   3.00   3.25    3.50   3.75   4.00   4.25    4.50
          10           34.9   38.2   „       ..     „      „      „      .,
          12           39.7   43.9   47.2   51.6    ..     ,.     ..
          14           45.8   50.1   54.5   60.0   64.3    69.7          „_
          16           52.3   57.1   63.0   67.9   74.0    80.6   ..     „
          18          61.2    67.6   73.0   79.0   86.8    93.6   -      -
          20           70.8   76.2   82.8   90.4   98.0   106.8   119.5   133.3
          22           81.0   88.4   95.8   104.5   114.1   124.2   132.1   144,0
          24           96.0   100.2   109.0   119.8   130.7   141.6   149.8   161.0
                       4.75   5.00   5.25    5.50   5.75   6.00
          20          144.0   153.1   163.9   175.4   189.1   203.5
          22          154.9   165.6   176.5   187.3   200.3   216.1
          24          172.8   183.7   194.5   208.9   223.3   237.7

     For General Notes on pipe bends, see pages 5 and 6.
     For bends 91 ° through 180° add 75% to the above man hours.
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