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Pipe thickness calculator- ready made with formula

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Pipe thickness calculator- ready made with formula Powered By Docstoc
					            Thickness calculation as per ASME B31.1-2001                                               Velocity calculation
                       MAIN STEAM PIPELINE
Description                                 Unit                       value    Description                               Unit              value


Design Pressure (P)                         Kg/cm2(g)                   69.52   Flow rate                                 TPH                64.64
Design Temperature(T)                       oC                         548.00   Flow rate                                 Kg/sec            17.956

Pipe material                                           SA 335 P22              Specific Volume                           m3/kg           0.05226
Design temperature in Degree F              oF                         1018.4

Select the temperature range                oF          1000 to 1050

Allowable stress(S)                         Kg/cm2                     502.95   Volumetric flow rate                      m3/sec             0.938

Efficiency factor(E)                        -                              1    Assumed Velocity                          m/sec                50

Y factor (select temperature range in oF)               1000 to 1050

Y factor                                    -                            0.70   Calculated ID                             mm                154.58
Corrosion allowance(A)                      mm                           0.75   Selected pipe NB                                   200

                                                        200                                                                        SCH 80
Pipe size                                   NB                                  Schedule
For OD based Pipes                                                              Outside diameter                          mm                 219.1
Outside diameter                            mm                          219.1   Thickness                                 mm                  12.7
Required thickness as per ASME B-31.1
including negative tolerence on thickness
(-)12.5%                                  mm                             16.6   Internal diameter for OD based pipes      mm                193.70
Provided schedule                           Sch         SCH 20                  Internal diameter for ID based pipes      mm                 10.00
Provided Thickness                          mm                           6.35   calculated velocity for OD based pipes    m/sec              31.85
                                                    2
Maximum pressure                            Kg/cm                       26.66   calculated velocity for ID based pipes    m/sec          11948.22
(wthout considering negative tolerence)
Maximum pressure                            Kg/cm2                      22.77
(wthout considering negative tolerence)


For ID based pipes
Internal diameter                       mm              0
Required thickness as per ASME B-31.1   mm            0.86
Provided Thickness                      mm            0.00
Maximum pressure                        Kg/cm2   -718.5043
                                           LINE PIPE DIMENSIONS
NB        Schedule  OD       SCH 10 SCH 20 SCH 30 STD SCH 40 XS SCH 60 SCH 80 SCH 100 SCH 120 SCH 140 SCH 160   XXS
 15        SCH 10   21.3                            2.27  2.27  3.73        3.73                        4.78     7.47
 20        SCH 20   26.7                            2.87  2.87  3.91        3.91                        5.56     7.82
 25        SCH 30   33.4                            3.38  3.38  4.55        4.55                        6.35     9.09
 32          STD    42.2                            3.56  3.56  4.85        4.85                        6.35     9.70
 40        SCH 40   48.3                            3.68  3.68  5.08        5.08                        7.14    10.15
 50           XS    60.3                            3.91  3.91  5.54        5.54                        8.74    11.07
 65        SCH 60   73.0                            5.16  5.16  7.01        7.01                        9.53    14.02
 80        SCH 80   88.9                            5.49  5.49  7.62        7.62                       11.13    15.24
100        SCH 100 114.3                            6.02  6.02  8.56        8.56       11.13           13.49    17.12
125        SCH 120 141.3                            6.55  6.55  9.53        9.53       12.70           15.88    19.05
150        SCH 140 168.3                            7.11  7.11 10.97       10.97       14.27           18.26    21.95
200        SCH 160 219.1             6.35     7.0   8.18  8.18 12.70 10.31 12.70 15.09 18.26   20.62   23.01    22.23
250         XXS    273.1             6.35     7.8   9.27  9.27 12.70 12.70 15.09 18.26 21.44   25.40   28.58    25.40
300            2   323.9             6.35     8.4   9.53 10.31 12.70 14.27 17.48 21.44 25.40   28.58   33.32    25.40
350                355.6      6.35   7.92     9.5   9.53 11.13 12.70 15.09 19.05 26.83 27.79   31.75   35.71
400              8 406.4      6.35   7.92     9.5   9.53 12.70 12.70 16.66 21.44 26.19 30.96   36.53   40.49
450                 457       6.35   7.92    11.1   9.53 14.20 12.70 19.05 23.83 29.36 34.93   39.67   45.24
500                 508       6.35   9.53    12.7   9.53 15.09 12.70 20.62 26.20 32.50 38.10   44.40   50.00
600                 610       6.35   9.53    14.3   9.53 17.48 12.70 24.61 31.00 38.90 46.00   52.40   59.50

12             OD 219.1
              THK 6.35

     12        OD    219.1
              THK     12.7
                                                                         Max allowable stress in the material in Ksi
                               Temperature in oF
                                  400        500    600          650          700      750     800      850      900        950         1000     1050    1100    1150   1200
              Temperature
Material      in oF
SA 106 Gr.A       -20 to 400     12.00      12.00   12.00        12.00        11.70   10.70    9.00     N.A      N.A        N.A          N.A      N.A     N.A    N.A    N.A
SA 106 Gr.B      400 to 500      15.00      15.00   15.00        15.00        14.40   13.00    10.80    N.A      N.A        N.A          N.A      N.A     N.A    N.A    N.A
SA 106 Gr.C      500 to 600      17.50      17.50   17.50        17.50        16.60   14.80    12.00    N.A      N.A        N.A          N.A      N.A     N.A    N.A    N.A
SA 335 P11       600 to 650      15.00      15.00   15.00        15.00        15.00   14.80    14.40   14.00    13.60       9.30         6.30     4.20    2.80   N.A    N.A
SA 335 P22       650 to 700      15.00      15.00   15.00        15.00        15.00   15.00    15.00   14.40    13.60      10.80         8.00     5.70    3.80   N.A    N.A
SA 335 P91       700 to 750       N.A       21.10   20.80        20.50        20.00   19.40    18.70   17.80    16.70      15.50        14.30    12.90   10.30   7.00   4.30
                 750 to 800
          5      800 to 850
                 850 to 900
                 900 to 950
                950 to 1000
                1000 to 1050
                1050 to 1100
                1100 to 1150
                1150 to 1200
                                                                                                                                     Y factor
                          12      5.7       Ksi           interpolation for allowable stress                            900 and below      900    0.4
                               400.75377   Kg/cm2                                                                         900 to 950       950    0.5
                                                    1000         8.000        Ksi                                         950 to 1000     1000    0.7
                                                    1050         5.700        Ksi                                        1000 to 1050     1050    0.7
                                                    1018         7.154        Ksi                                        1050 to 1100     1100    0.7
                                                               502.9530      Kg/cm2                                      1100 to 1150     1150    0.7
                                                                                                                         1150 to 1200     1200    0.7
                                                                                                                        1250 and above    1250    0.7

                                                                                                                             4           0.7

                                                                                                                                         1000     0.7
                                                                                                                                         1050     0.7
                                                                                                                                        1018.4   0.700
                                   ALLOWABLE VELOCITY FOR SIZING OF PIPES

                                                                                       AVERAGE VELOCITY ( metre / second )
SL.NO.                          DESCRIPTION                                                NOMINAL PIPE SIZE IN mm
                                                                              BELOW 50 mm          50 TO 150 mm    200 mm & ABOVE




  1      SATURATED STEAM AT SUB ATMOSPHERIC PRESSURE                               -                10 - 15           15 - 20

  2      SATURATED STEAM AT         0 - 1      kg / cm2 (g)                    15 - 20              17 - 30           20 - 30

  3      SATURATED STEAM AT         1.1 - 7 kg / cm2 (g)                       15 - 22              20 - 33           25 - 43
                                                   2
  4      SATURATED STEAM OVER         7 kg / cm (g)                            15 - 25              20 - 35           30 - 50

  5      SUPERHEATED STEAM AT            0 - 7 kg / cm2 (g)                    20 - 30              25 - 40           30 - 50

  6      SUPERHEATED STEAM AT            7.1 - 35 kg / cm2 (g)                 20 - 33              28 - 43           35 - 55

  7      SUPERHEATED STEAM AT            35.1 - 70 kg / cm2 (g)                22 - 33              30 - 50           40 - 61

  8      SUPERHEATED STEAM OVER 70 kg / cm2 (g)                                22 - 35              35 - 61           50 - 76

  9      COMPRESSED AIR AT        0 - 2     kg / cm2 (g)                       15 - 20              20 - 30           25 - 35
                                                         2
 10      COMPRESSED AIR AT        2.1 - 7      kg / cm (g)                     22 - 30              25 - 40           35 - 45

 11      COMPRESSED AIR OVER         7     kg / cm2 (g)                        22 - 35              30 - 45           40 - 50

 12      PUMP SUCTION, CONDENSATE                                                  -               0.4 - 0.6          0.6 - 0.7

 13      PUMP SUCTION, BOILER FEED                                                 -               0.6 - 0.9          0.6 - 0.9

 14      PUMP SUCTION, GENERAL SERVICE                                         0.6 - 0.9           0.7 - 1.3          0.9 - 1.5

 15      PUMP SUCTION, VISCOUS LIQUID                                             0.3              0.3 - 0.4          0.4 - 0.5

 16      PUMP DISCHARGE, CONDENSATE                                            0.9 - 1.2           1.2 - 2.1          1.5 - 2.2

 17      PUMP DISCHARGE, BOILER FEED                                           1.0 - 1.2           1.5 - 2.1          1.8 - 2.4

 18      PUMP DISCHARGE, GENERAL SERVICE                                       0.9 - 1.0           1.5 - 2.4          1.5 - 2.4

 19      PUMP DISCHARGE, VISCOUS LIQUID                                           1                     1             1.2 - 1.4

 20      HEADER, GENERAL SERVICE BELOW                 2.0 kg / cm2 (g)            -               1.3 - 2.0          1.8 - 2.4

 21      HEADER, GENERAL SERVICE            2.0 kg / cm2 (g) & ABOVE               -               1.5 - 2.4          2.1 - 2.4




         NOTE : THIS STANDARD SETS THE MAXIMUM LIMITS OF THE FLOW VELOCITY.
                 LOWER VELOCITIES MAY BE SELECTED IF FOUND NECESSARY




                                                                                        bdafc1c6-ba3d-48c1-9129-a31c14a7aa44.xlsVelocity

				
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Description: Piping calculator self made excel sheet with built in formulas, very useful of engineering graduates, mechanical engineers, piping engineers, pipe line contractors and supervisors
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