Max Allowable Pressure of Pipes and Pipellines CER 04022013 1 (v. S. Kumar Unprotected)

User Input Values - Taken & inserted by the User from the tables of Codes, GPSA book or specified by s

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2

3

4

5

6

7

USE OF THIS SPREADSHEET - ALL. INTERNAL PRESSURE OF PIPING & PIPELINES DATA Standard Values - Commercial pipe data from tables User Input Values - Taken & inserted by the User from the tables of Codes, GPSA book or specified by self

Calculated Value Notes / Instructions for the user:

This Spreadsheet enables quick reference and calulations for maximum allowable pressure for a user identified service for in plant process piping, liquid and gas pipelines. This is also useful for operations persons doing modifications on the pipelines and piping as well as for preliminery design checks. This is not meant to replace a systematic design performed with full referencing to the precise applicable clauses/sub-clauses of the relavant codes and standards. The spreadsheet enables to find the allowable internal pressure in process plant piping as per ASME B31.3. Also on the same spreadsheet a provision has been made to check its pressure compatibility of the pipeline portion with either ASME B31.4 (Liquid Hydrocarbon pipelines) or ASME B31.8 (Gas pipelines). For example, assume that a pump discharge piping located inside the plant -A is routed to another plant - B, several miles away. So the integrity of the entire system is divided into piping in the plant - A (built as per B31.3), the pipeline between the two plants (built as per B31.4 for liquids or B31.8 for gas pipelines as the case may be) and the piping in the plant B (built as per B31.3), can be checked simultaneously using this spreadsheet.

3. Please note that the calculations in table are done using some values. A user can use each row for the sizes and input data of his requirement by inserting the values in black cells. Blue font cells contain standard commercial pipe data already incorporated in the spreadsheet. Calculated results are in Green font cells. User should know nominal pipe size, schedule no., material, material grade, method of pipe production (ERW, Seamleass etc.), design temperature, location for gas lines, and corrosion allowance to be given. Type A construction also applicable to "Liquid Petroleum Transportation Piping Code." ANSI B31.4-1979. Users may refer to the latest versions of the ASME Standards and GPSA book for correctness. Some of the tables are from older versions. Please note that the Table nos. mentioned the worksheets Table 1,2,3 & 4, FIG. 17-23, 24, 25, 26, 27 & 28 (The letters T, F, Y, E are added on each sheet name along with Table or Fig no. so that you can quickly select the appropriate reference worksheet) refer to the table nos. in GPSA book / Applicable Standard from where they are produced. Pipelines sizes can be 2" and 3" also. But the spreadsheet is developed from 4" onwards.

For any interpretation clarifications of Stress Values, notes and material related factors or data, always refer to the Engineers who are well versed with codes interpretation or assigned with material department.

References for Spreadsheet Development: 1. GPSA Engg. Handbook, 11h Ed, 1998 2. ASME B31.3 2008, ASME B31.4 2012& ASME B31.8 2010 3. Properties of Commercial Pipe, pipingdesigners.com GPSA - Gas Processors & Suppliers Association ASME - American Society of Mechanical Engineers

Font Color Standard Values Blue User Input Values Black Calculated Value Green

Allowable Internal Pressure Calculati ASME B31.3 2008 In-Plant Piping Pi =2*t*S,pipe*E*W/(Do-2*t*Y) t,S,E,Do,Y,W 6 values

The Weld Joint Strength Reduction Factor 'W' below 800 F is 1.00. The values are in worksheet named " Table 5 W".

t = t,nominal - Mill Tollerance Allowance - Corrosion Allowance

For 31.4 and 31.8 code pipelines, do not consider mill tolerances. calculation. Pls. see below. 403.2.2 Wall Thickness and Defect Tolerances. Wall thickness tole shall be as specified in applicable pipe specifications or dimension reference in Mandatory Appendix I. Design factors in this Code we for underthickness tolerance and maximum allowable depth of im standards; no additional allowance is necessary However, for 31.3 piping, mill tolerances are to be subtracted.

Allowable Internal Pressure Calculation Equation ASME B31.4 2012 ASME B31.8 2010 Liquid Pipelines Gas Pipelines Pi =2*t*S,pipeline*E(0.72)/Do Pi =2*t*S,pipeline*E*F*T)/Do t,S,E,Do,E t,S,E,Do,E,F,T 5 values 7 values Liquid Pipelines are designed for temperatures below 250 F.

t = t,nominal - Corrosion Allowance

t = t,nominal - Corrosion Allowance

ipelines, do not consider mill tolerances. The nominal thk is used in the w. nd Defect Tolerances. Wall thickness tolerances and defect tolerances for pipe pplicable pipe specifications or dimensional standards included in this Code by Appendix I. Design factors in this Code were established with due consideration ance and maximum allowable depth of imperfections allowed by the referenced allowance is necessary mill tolerances are to be subtracted.

Color code of Values in the Table Standard Values User Input Values Calculated Value User is cautioned to use only the black font cells

Dn Nominal Dia, in

Do Outside Dia, in

Sch No

Weight

0.84

¹⁄₂

40 80 160

(0.840)

1.05

... ...

(1.050)

³⁄₄

1.305

1.9 (1.900)

Std

...

XXS

...

...

40

...

XS ...

Std

1 (1.305)

1¹⁄₂

40 80 160

80

XS

160

...

...

XXS

...

...

...

...

40

Std

80

XS

160

...

1¹⁄₂

(1.900)

2.375 2 (2.375)

3.5 3 (3.500)

...

XXS

...

...

...

...

40

Std

80

XS

160

...

...

XXS

...

...

...

...

40

Std

80

XS

160

...

...

XXS

...

...

...

...

40 80 120

Std XS

160

...

...

XXS

6.625

40 80 120 160

Std XS

8.625

20 30 40 60 80 100 120 140

4.5

4 (4.500)

6 (6.625)

XXS

8 (8.625)

Std XS

XXS 10.75

10 (10.750)

12.75

160 20 30 40 60 80 100 120 140 160 20

Std XS

30 Std 40 60 XS

12 (12.750)

14

14

80 100 120 140 160 10 20 30 40

Std XS

16

18

16

18

60 60 60 80 100 120 140 160 10 20 30 40 60 80 100 120 140 160 10 20

Std XS

Std 30 XS 40 60 80 100 120 140 160

20

22

20

22

24

24

26

26

10 20 30 40 60 80 100 120 140 160 10 20 30 60 80 100 120 140 160 10 20 30 40 60 80 100 120 140 160 10 20

28

28

Std XS

Std XS

Std XS

10 Std 20 30 Xs

30

30

10 Std

20 30 40

32

32

10 20 30 40

34

34

36

Std XS

10 20 30 40

42

Std XS

10 20 30 40

36

XS

42 20 30 40

Std XS

Std XS

Reference Data Tables Pipe thickness, t Flange ratings : Refer Fig 17.28

USER INPUT

Calculated Pipe thickness Value for pressure design after applying factors, t calculation o Fig 17.28 to check Pressure & Temp compatibility

All. Stress, S,pipe

WorkSheet Fig 17.25

Sp.Min.Yield Strength, S,pipeline

WorkSheet Fig 17.25

Temp Derating Factor, T

Work Sheet Table 1 for Gas pipelines

Longtudanal Weld Factor, E

Work Sheet Table 4 for all

Location Class/Type, F

Work Sheet Table 2 for Gas pipelines

Values of Co-Efft. Y

Work Sheet Table 3 for Piping

Wall Thk, in

Di Inside Dia, in

USER INPUT Corrosion Allowance mm 1.5 3 6 3.175

t-nominal Thickness, in

t-min mill tolerance in

CA Corrosion Allowance in

Wall Thk

t,nom x 0.875

User Input

User Specified Value

0.065 0.083 0.109 0.147 0.187 0.294 0.065 0.083 0.113 0.154 0.218 0.308 0.065 0.109 0.133 0.179 0.250 0.358 0.065 0.109 0.145 0.200 0.281

0.710 0.674 0.622 0.546 0.466 0.252 0.920 0.884 0.824 0.742 0.614 0.434 1.175 1.087 1.039 0.947 0.805 0.589 1.770 1.682 1.610 1.500 1.338

0.065 0.083 0.109 0.147 0.187 0.294 0.065 0.083 0.113 0.154 0.218 0.308 0.065 0.109 0.133 0.179 0.250 0.358 0.065 0.109 0.145 0.200 0.281

0.057 0.073 0.095 0.129 0.164 0.257 0.057 0.073 0.099 0.135 0.191 0.270 0.057 0.095 0.116 0.157 0.219 0.313 0.057 0.095 0.127 0.175 0.246

0.000 0.000 0.000 0.000 0.059 0.059 0.000 0.000 0.000 0.059 0.000 0.000 0.000 0.000 0.000 0.059 0.000 0.000 0.000 0.000 0.000 0.059 0.000

0.400 0.065 0.109 0.154 0.218 0.343 0.436 0.083 0.120 0.216 0.300 0.437 0.600 0.083 0.120 0.237 0.337 0.437 0.531 0.674

0.280 0.432 0.562 0.718 0.864 0.250 0.277 0.322 0.406 0.500 0.593 0.718 0.812 0.875 0.906 0.250 0.307 0.365 0.500 0.593 0.718 0.843 1.000 1.125 0.250

1.100 2.245 2.157 2.067 1.939 1.689 1.503 3.334 3.260 3.068 2.900 2.626 2.300 4.334 4.260 4.026 3.826 3.626 3.438 3.152 6.065 5.761 5.501 5.189 4.897 8.125 8.071 7.981 7.813 7.625 7.439 7.189 7.001 6.875 6.813 10.250 10.136 10.020 9.750 9.564 9.314 9.064 8.750 8.500 12.250

0.400 0.065 0.109 0.154 0.218 0.343 0.436 0.083 0.120 0.216 0.300 0.437 0.600 0.083 0.120 0.237 0.337 0.437 0.531 0.674 0.280 0.432 0.562 0.718 0.864 0.250 0.277 0.322 0.406 0.500 0.593 0.718 0.812 0.875 0.906 0.250 0.307 0.365 0.500 0.593 0.718 0.843 1.000 1.125 0.250

0.350 0.057 0.095 0.135 0.191 0.300 0.382 0.073 0.105 0.189 0.263 0.382 0.525 0.073 0.105 0.207 0.295 0.382 0.465 0.590 0.245 0.378 0.492 0.628 0.756 0.219 0.242 0.282 0.355 0.438 0.519 0.628 0.711 0.766 0.793 0.219 0.269 0.319 0.438 0.519 0.628 0.738 0.875 0.984 0.219

0.000 0.000 0.000 0.000 0.059 0.000 0.000 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.050 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118

0.330 0.375 0.406 0.500 0.562 0.687 0.843 1.000 1.125 1.312 0.250 0.312 0.375 0.437 0.500 0.562 0.593 0.625 0.750 0.937 1.093 1.250 1.406 0.250 0.312 0.375 0.500 0.656 0.843 1.031 1.218 1.437 1.593 0.250 0.312 0.375 0.437 0.500 0.562 0.750 0.937 1.156 1.375 1.562 1.781

12.090 12.000 11.938 11.750 11.626 11.376 11.064 10.750 10.500 10.126 13.500 13.376 13.250 13.126 13.000 12.876 12.814 12.750 12.500 12.126 11.814 11.500 11.188 15.500 15.376 15.250 15.000 14.688 14.314 13.938 13.564 13.126 12.814 17.500 17.376 17.250 17.126 17.000 16.876 16.500 16.126 15.688 15.250 14.876 14.438

0.330 0.375 0.406 0.500 0.562 0.687 0.843 1.000 1.125 1.312 0.250 0.312 0.375 0.437 0.500 0.562 0.593 0.625 0.750 0.937 1.093 1.250 1.406 0.250 0.312 0.375 0.500 0.656 0.843 1.031 1.218 1.437 1.593 0.250 0.312 0.375 0.437 0.500 0.562 0.750 0.937 1.156 1.375 1.562 1.781

0.289 0.328 0.355 0.438 0.492 0.601 0.738 0.875 0.984 1.148 0.219 0.273 0.328 0.382 0.438 0.492 0.519 0.547 0.656 0.820 0.956 1.094 1.230 0.219 0.273 0.328 0.438 0.574 0.738 0.902 1.066 1.257 1.394 0.219 0.273 0.328 0.382 0.438 0.492 0.656 0.820 1.012 1.203 1.367 1.558

0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118

0.250 0.375 0.437 0.593 0.812 1.031 1.281 1.500 1.750 1.968 0.250 0.375 0.500 0.625 1.125 1.375 1.625 1.875 2.125 0.250 0.375 0.562 0.687 0.968 1.218 1.531 1.812 2.062 2.343 0.250 0.375 0.500 0.875 1.000 1.125 0.312 0.375 0.500 0.625 0.750 0.875 1.000 1.125 0.312 0.375

19.500 19.250 19.126 18.814 18.376 17.938 17.438 17.000 16.500 16.064 21.500 21.250 21.000 20.750 19.750 19.250 18.750 18.250 17.750 23.500 23.250 22.876 22.626 22.064 21.564 20.938 20.376 19.876 19.314 25.500 25.250 25.000 24.250 24.000 23.750 27.376 27.250 27.000 26.750 26.500 26.250 26.000 25.750 29.376 29.250

0.250 0.375 0.437 0.593 0.812 1.031 1.281 1.500 1.750 1.968 0.250 0.375 0.500 0.625 1.125 1.375 1.625 1.875 2.125 0.250 0.375 0.562 0.687 0.968 1.218 1.531 1.812 2.062 2.343 0.250 0.375 0.500 0.875 1.000 1.125 0.312 0.375 0.500 0.625 0.750 0.875 1.000 1.125 0.312 0.375

0.219 0.328 0.382 0.519 0.711 0.902 1.121 1.313 1.531 1.722 0.219 0.328 0.438 0.547 0.984 1.203 1.422 1.641 1.859 0.219 0.328 0.492 0.601 0.847 1.066 1.340 1.586 1.804 2.050 0.219 0.328 0.438 0.766 0.875 0.984 0.273 0.328 0.438 0.547 0.656 0.766 0.875 0.984 0.273 0.328

0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118

0.500 0.625 0.750 0.875 1.000 1.125 0.312 0.375 0.500 0.625 0.688 0.750 0.875 1.000 1.125 0.312 0.375 0.500 0.625 0.688 0.750 0.875 1.000 1.125 0.312 0.375 0.500 0.625 0.688 0.750 0.875 1.000 1.125 0.375 0.500 0.625 0.688 0.750 0.875 1.000 1.125 1.500

29.000 28.750 28.500 28.250 28.000 27.750 31.376 31.250 31.000 30.750 30.624 30.500 30.250 30.000 29.750 33.376 33.250 33.000 32.750 32.624 32.500 32.250 32.000 31.750 35.376 35.250 35.000 34.750 34.624 34.500 34.250 34.000 33.750 41.250 41.000 40.750 40.624 40.500 40.250 40.000 39.750 39.000

0.500 0.625 0.750 0.875 1.000 1.125 0.312 0.375 0.500 0.625 0.688 0.750 0.875 1.000 1.125 0.312 0.375 0.500 0.625 0.688 0.750 0.875 1.000 1.125 0.312 0.375 0.500 0.625 0.688 0.750 0.875 1.000 1.125 0.375 0.500 0.625 0.688 0.750 0.875 1.000 1.125 1.500

0.438 0.547 0.656 0.766 0.875 0.984 0.273 0.328 0.438 0.547 0.602 0.656 0.766 0.875 0.984 0.273 0.328 0.438 0.547 0.602 0.656 0.766 0.875 0.984 0.273 0.328 0.438 0.547 0.602 0.656 0.766 0.875 0.984 0.328 0.438 0.547 0.602 0.656 0.766 0.875 0.984 1.313

0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118

pplying factors, t calculation of pipes is different from pipelines

USER INPUT rrosion Allowance inches 0.059 0.118 0.236

USER INPUT Weld Joint Strength Reduction Factor W Worksheet Table 5 Note: For temp