Page 85 - Industrial Process Plant Construction Estimating and Man Hour Analysis
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56  Industrial Process Plant Construction Estimating and Man-Hour Analysis


            2.10 Schedule M—Pipe supports and hangers
            Facility—Industrial plant, pipe supports, and hangers


                          Pipe support spacing         Span in feet
                                                    Water   Steam gas
                           Pipe size (inches)       service   and air
                                 1                    7         9
                                 1.5                  9        12
                                 2                   10        13
                                 2.5                 11        14
                                 3                   12        15
                                 3.5                 13        16
                                 4                   14        17
                                 5                   16        19
                                 6                   17        21
                                 8                   19        24
                                 10                  22        28
                                 12                  23        30
                                 14                  25        32
                                 16                  27        35
                                 18                  28        37
                                 20                  30        39
                                 24                  32        42
                       Standard labor estimating units
                             Type of hanger          MH
                            Pipe size (1 –4 )
                                      00
                                    00
                    Clevis, band, ring, and expansion hangers  3.8
                             Trapeze hanger          6.0
                               Pipe size
                                 6 00                5.0
                                 8 00                5.3
                                 10 00               5.6
                                 12 00               6.0
                            Shoes and guides         2.0
                      Engineered supports, spring, sway,  1.0 MH/DI
                               snubbers
                     Structural supports (angles, channels,
                       beams, tube steel)—0.04 per LB
   80   81   82   83   84   85   86   87   88   89   90