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# -*- coding: utf-8 -*-
'''Chemical Engineering Design Library (ChEDL). Utilities for process modeling.
Copyright (C) 2016, Caleb Bell <Caleb.Andrew.Bell@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.'''
from __future__ import division
from math import pi
from scipy.constants import inch
__all__ = ['nearest_pipe', 'gauge_from_t', 't_from_gauge', 'wire_schedules']
# Schedules 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160 from
# ASME B36.10M - Welded and Seamless Wrought Steel Pipe
# All schedule lists stored in mm, other than NPS.
# i = inner diameter, o = outer diameter, and t = wall thickness in variable names
NPS5 = [0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 30]
S5i = [18, 23.4, 30.1, 38.9, 45, 57, 68.78, 84.68, 97.38, 110.08, 135.76, 162.76, 213.56, 266.2, 315.88, 347.68, 398.02, 448.62, 498.44, 549.44, 598.92, 749.3]
S5o = [21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610, 762]
S5t = [1.65, 1.65, 1.65, 1.65, 1.65, 1.65, 2.11, 2.11, 2.11, 2.11, 2.77, 2.77, 2.77, 3.4, 3.96, 3.96, 4.19, 4.19, 4.78, 4.78, 5.54, 6.35]
NPS10 = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36]
S10i = [7.82, 10.4, 13.8, 17.08, 22.48, 27.86, 36.66, 42.76, 54.76, 66.9, 82.8, 95.5, 108.2, 134.5, 161.5, 211.58, 264.62, 314.66, 342.9, 393.7, 444.3, 495.3, 546.3, 597.3, 644.16, 695.16, 746.16, 797.16, 848.16, 898.16]
S10o = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914]
S10t = [1.24, 1.65, 1.65, 2.11, 2.11, 2.77, 2.77, 2.77, 2.77, 3.05, 3.05, 3.05, 3.05, 3.4, 3.4, 3.76, 4.19, 4.57, 6.35, 6.35, 6.35, 6.35, 6.35, 6.35, 7.92, 7.92, 7.92, 7.92, 7.92, 7.92]
NPS20 = [8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36]
S20i = [206.4, 260.3, 311.1, 339.76, 390.56, 441.16, 488.94, 539.94, 590.94, 634.6, 685.6, 736.6, 787.6, 838.6, 888.6]
S20o = [219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914]
S20t = [6.35, 6.35, 6.35, 7.92, 7.92, 7.92, 9.53, 9.53, 9.53, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7]
NPS30 = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 32, 34, 36]
S30i = [7.4, 10, 13.4, 16.48, 21.88, 27.6, 36.26, 41.94, 53.94, 63.44, 79.34, 92.04, 104.74, 205.02, 257.4, 307.04, 336.54, 387.34, 434.74, 482.6, 533.6, 581.46, 679.24, 730.24, 781.24, 832.24, 882.24]
S30o = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610, 711, 762, 813, 864, 914]
S30t = [1.45, 1.85, 1.85, 2.41, 2.41, 2.9, 2.97, 3.18, 3.18, 4.78, 4.78, 4.78, 4.78, 7.04, 7.8, 8.38, 9.53, 9.53, 11.13, 12.7, 12.7, 14.27, 15.88, 15.88, 15.88, 15.88, 15.88]
NPS40 = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 24, 32, 34, 36]
S40i = [6.84, 9.22, 12.48, 15.76, 20.96, 26.64, 35.08, 40.94, 52.48, 62.68, 77.92, 90.12, 102.26, 128.2, 154.08, 202.74, 254.46, 303.18, 333.34, 381, 428.46, 477.82, 575.04, 778.04, 829.04, 875.9]
S40o = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 610, 813, 864, 914]
S40t = [1.73, 2.24, 2.31, 2.77, 2.87, 3.38, 3.56, 3.68, 3.91, 5.16, 5.49, 5.74, 6.02, 6.55, 7.11, 8.18, 9.27, 10.31, 11.13, 12.7, 14.27, 15.09, 17.48, 17.48, 17.48, 19.05]
NPS60 = [8, 10, 12, 14, 16, 18, 20, 22, 24]
S60i = [198.48, 247.6, 295.26, 325.42, 373.08, 418.9, 466.76, 514.54, 560.78]
S60o = [219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610]
S60t = [10.31, 12.7, 14.27, 15.09, 16.66, 19.05, 20.62, 22.23, 24.61]
NPS80 = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24]
S80i = [5.48, 7.66, 10.7, 13.84, 18.88, 24.3, 32.5, 38.14, 49.22, 58.98, 73.66, 85.44, 97.18, 122.24, 146.36, 193.7, 242.82, 288.84, 317.5, 363.52, 409.34, 455.62, 501.84, 548.08]
S80o = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610]
S80t = [2.41, 3.02, 3.2, 3.73, 3.91, 4.55, 4.85, 5.08, 5.54, 7.01, 7.62, 8.08, 8.56, 9.53, 10.97, 12.7, 15.09, 17.48, 19.05, 21.44, 23.83, 26.19, 28.58, 30.96]
NPS100 = [8, 10, 12, 14, 16, 18, 20, 22, 24]
S100i = [188.92, 236.48, 280.92, 307.94, 354.02, 398.28, 442.92, 489.14, 532.22]
S100o = [219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610]
S100t = [15.09, 18.26, 21.44, 23.83, 26.19, 29.36, 32.54, 34.93, 38.89]
NPS120 = [4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24]
S120i = [92.04, 115.9, 139.76, 182.58, 230.12, 273, 300.02, 344.48, 387.14, 431.8, 476.44, 517.96]
S120o = [114.3, 141.3, 168.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610]
S120t = [11.13, 12.7, 14.27, 18.26, 21.44, 25.4, 27.79, 30.96, 34.93, 38.1, 41.28, 46.02]
NPS140 = [8, 10, 12, 14, 16, 18, 20, 22, 24]
S140i = [177.86, 222.2, 266.64, 292.1, 333.34, 377.66, 419.1, 463.74, 505.26]
S140o = [219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610]
S140t = [20.62, 25.4, 28.58, 31.75, 36.53, 39.67, 44.45, 47.63, 52.37]
NPS160 = [0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24]
S160i = [11.74, 15.58, 20.7, 29.5, 34.02, 42.82, 53.94, 66.64, 87.32, 109.54, 131.78, 173.08, 215.84, 257.16, 284.18, 325.42, 366.52, 407.98, 451.04, 490.92]
S160o = [21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 114.3, 141.3, 168.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610]
S160t = [4.78, 5.56, 6.35, 6.35, 7.14, 8.74, 9.53, 11.13, 13.49, 15.88, 18.26, 23.01, 28.58, 33.32, 35.71, 40.49, 45.24, 50.01, 53.98, 59.54]
# Schedules designated STD, XS, and XXS
NPSSTD = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48]
STDi = [6.84, 9.22, 12.48, 15.76, 20.96, 26.64, 35.08, 40.94, 52.48, 62.68, 77.92, 90.12, 102.26, 128.2, 154.08, 202.74, 254.46, 304.74, 336.54, 387.34, 437.94, 488.94, 539.94, 590.94, 640.94, 691.94, 742.94, 793.94, 844.94, 894.94, 945.94, 996.94, 1047.94, 1098.94, 1148.94, 1199.94]
STDo = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914, 965, 1016, 1067, 1118, 1168, 1219]
STDt = [1.73, 2.24, 2.31, 2.77, 2.87, 3.38, 3.56, 3.68, 3.91, 5.16, 5.49, 5.74, 6.02, 6.55, 7.11, 8.18, 9.27, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53]
NPSXS = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48]
XSi = [5.48, 7.66, 10.7, 13.84, 18.88, 24.3, 32.5, 38.14, 49.22, 58.98, 73.66, 85.44, 97.18, 122.24, 146.36, 193.7, 247.6, 298.4, 330.2, 381, 431.6, 482.6, 533.6, 584.6, 634.6, 685.6, 736.6, 787.6, 838.6, 888.6, 939.6, 990.6, 1041.6, 1092.6, 1142.6, 1193.6]
XSo = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273, 323.8, 355.6, 406.4, 457, 508, 559, 610, 660, 711, 762, 813, 864, 914, 965, 1016, 1067, 1118, 1168, 1219]
XSt = [2.41, 3.02, 3.2, 3.73, 3.91, 4.55, 4.85, 5.08, 5.54, 7.01, 7.62, 8.08, 8.56, 9.53, 10.97, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7]
NPSXXS = [0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12]
XXSi = [6.36, 11.06, 15.22, 22.8, 28, 38.16, 44.96, 58.42, 80.06, 103.2, 124.4, 174.64, 222.2, 273]
XXSo = [21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 114.3, 141.3, 168.3, 219.1, 273, 323.8]
XXSt = [7.47, 7.82, 9.09, 9.7, 10.15, 11.07, 14.02, 15.24, 17.12, 19.05, 21.95, 22.23, 25.4, 25.4]
NPSS5 = [0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 30]
SS5DN = [15, 20, 25, 32, 40, 50, 65, 80, 90, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 750]
SS5i = [18, 23.4, 30.1, 38.9, 45, 57, 68.78, 84.68, 97.38, 110.08, 135.76, 162.76, 213.56, 266.3, 315.98, 347.68, 398.02, 448.62, 498.44, 549.44, 598.92, 749.3]
SS5o = [21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273.1, 323.9, 355.6, 406.4, 457, 508, 559, 610, 762]
SS5t = [1.65, 1.65, 1.65, 1.65, 1.65, 1.65, 2.11, 2.11, 2.11, 2.11, 2.77, 2.77, 2.77, 3.4, 3.96, 3.96, 4.19, 4.19, 4.78, 4.78, 5.54, 6.35]
# Schedules 10, 40 and 80 from ASME B36.19M - Stainless Steel Pipe
NPSS10 = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 30]
SS10DN = [6, 8, 10, 15, 20, 25, 32, 40, 50, 65, 80, 90, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 750]
SS10i = [7.82, 10.4, 13.8, 17.08, 22.48, 27.86, 36.66, 42.76, 54.76, 66.9, 82.8, 95.5, 108.2, 134.5, 161.5, 211.58, 264.72, 314.76, 346.04, 396.84, 447.44, 496.92, 547.92, 597.3, 746.16]
SS10o = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273.1, 323.9, 355.6, 406.4, 457, 508, 559, 610, 762]
SS10t = [1.24, 1.65, 1.65, 2.11, 2.11, 2.77, 2.77, 2.77, 2.77, 3.05, 3.05, 3.05, 3.05, 3.4, 3.4, 3.76, 4.19, 4.57, 4.78, 4.78, 4.78, 5.54, 5.54, 6.35, 7.92]
NPSS40 = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 24]
SS40DN = [6, 8, 10, 15, 20, 25, 32, 40, 50, 65, 80, 90, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600]
SS40i = [6.84, 9.22, 12.48, 15.76, 20.96, 26.64, 35.08, 40.94, 52.48, 62.68, 77.92, 90.12, 102.26, 128.2, 154.08, 202.74, 254.56, 304.84, 336.54, 387.34, 437.94, 488.94, 590.94]
SS40o = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273.1, 323.9, 355.6, 406.4, 457, 508, 610]
SS40t = [1.73, 2.24, 2.31, 2.77, 2.87, 3.38, 3.56, 3.68, 3.91, 5.16, 5.49, 5.74, 6.02, 6.55, 7.11, 8.18, 9.27, 9.53, 9.53, 9.53, 9.53, 9.53, 9.53]
NPSS80 = [0.125, 0.25, 0.375, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 24]
SS80DN = [6, 8, 10, 15, 20, 25, 32, 40, 50, 65, 80, 90, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600]
SS80i = [5.48, 7.66, 10.7, 13.84, 18.88, 24.3, 32.5, 38.14, 49.22, 58.98, 73.66, 85.44, 97.18, 122.24, 146.36, 193.7, 247.7, 298.5, 330.2, 381, 431.6, 482.6, 584.6]
SS80o = [10.3, 13.7, 17.1, 21.3, 26.7, 33.4, 42.2, 48.3, 60.3, 73, 88.9, 101.6, 114.3, 141.3, 168.3, 219.1, 273.1, 323.9, 355.6, 406.4, 457, 508, 610]
SS80t = [2.41, 3.02, 3.2, 3.73, 3.91, 4.55, 4.85, 5.08, 5.54, 7.01, 7.62, 8.08, 8.56, 9.53, 10.97, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7, 12.7]
def nearest_pipe(Do=None, Di=None, NPS=None, schedule='40'):
r'''Searches for and finds the nearest standard pipe size to a given
specification. Acceptable inputs are:
- Nominal pipe size
- Nominal pipe size and schedule
- Outer diameter `Do`
- Outer diameter `Do` and schedule
- Inner diameter `Di`
- Inner diameter `Di` and schedule
Acceptable schedules are: '5', '10', '20', '30', '40', '60', '80', '100',
'120', '140', '160', 'STD', 'XS', 'XXS', '5S', '10S', '40S', '80S'.
Parameters
----------
Do : float
Pipe outer diameter, [m]
Di : float
Pipe inner diameter, [m]
NPS : float
Nominal pipe size, []
schedule : str
String representing schedule size
Returns
-------
NPS : float
Nominal pipe size, []
Di : float
Pipe inner diameter, [m]
Do : float
Pipe outer diameter, [m]
t : float
Pipe wall thickness, [m]
Notes
-----
Internal units within this function are mm.
The imperial schedules are not quite identical to these value, but
all rounding differences happen in the sub-0.1 mm level.
Examples
--------
>>> nearest_pipe(Di=0.021)
(1, 0.02664, 0.0334, 0.0033799999999999998)
>>> nearest_pipe(Do=.273, schedule='5S')
(10, 0.26630000000000004, 0.2731, 0.0034)
References
----------
.. [1] American National Standards Institute, and American Society of
Mechanical Engineers. B36.10M-2004: Welded and Seamless Wrought Steel
Pipe. New York: American Society of Mechanical Engineers, 2004.
.. [2] American National Standards Institute, and American Society of
Mechanical Engineers. B36-19M-2004: Stainless Steel Pipe.
New York, N.Y.: American Society of Mechanical Engineers, 2004.
'''
if Di: Di = Di*1000
if Do: Do = Do*1000
if NPS: NPS = float(NPS)
def Di_lookup(Di, NPSes, Dis, Dos, ts):
for i in range(len(Dis)): # Go up ascending list; once larger than specified, return
if Dis[-1] < Di:
return None
if Dis[i] >= Di:
_nps, _di, _do, _t = NPSes[i], Dis[i], Dos[i], ts[i]
return (_nps, _di, _do, _t)
raise Exception('Di lookup failed')
def Do_lookup(Do, NPSes, Dis, Dos, ts):
for i in range(len(Dos)): # Go up ascending list; once larger than specified, return
if Dos[-1] < Do:
return None
if Dos[i] >= Do:
_nps, _di, _do, _t = NPSes[i], Dis[i], Dos[i], ts[i]
return (_nps, _di, _do, _t)
raise Exception('Di lookup failed')
def NPS_lookup(NPS, NPSes, Dis, Dos, ts):
for i in range(len(NPSes)): # Go up ascending list; once larger than specified, return
if NPSes[i] == NPS:
_nps, _di, _do, _t = NPSes[i], Dis[i], Dos[i], ts[i]
return (_nps, _di, _do, _t)
raise Exception('NPS not in list')
def lookup_wrapper(Di, Do, NPS, NPSes, Dis, Dos, ts):
if Di:
nums = Di_lookup(Di, NPSes, Dis, Dos, ts)
if nums is None:
return None
_nps, _di, _do, _t = nums
elif Do:
nums = Do_lookup(Do, NPSes, Dis, Dos, ts)
if nums is None:
return None
_nps, _di, _do, _t = nums
elif NPS:
_nps, _di, _do, _t = NPS_lookup(NPS, NPSes, Dis, Dos, ts)
return _nps, _di, _do, _t
# If accidentally given numerical schedule, convert to string
if type(1) == type(schedule) or type(1.1) == type(schedule):
schedule = str(int(schedule))
if schedule == '40':
nums = lookup_wrapper(Di, Do, NPS, NPS40, S40i, S40o, S40t)
elif schedule == '5':
nums = lookup_wrapper(Di, Do, NPS, NPS5, S5i, S5o, S5t)
elif schedule == '10':
nums = lookup_wrapper(Di, Do, NPS, NPS10, S10i, S10o, S10t)
elif schedule == '20':
nums = lookup_wrapper(Di, Do, NPS, NPS20, S20i, S20o, S20t)
elif schedule == '30':
nums = lookup_wrapper(Di, Do, NPS, NPS30, S30i, S30o, S30t)
elif schedule == '60':
nums = lookup_wrapper(Di, Do, NPS, NPS60, S60i, S60o, S60t)
elif schedule == '80':
nums = lookup_wrapper(Di, Do, NPS, NPS80, S80i, S80o, S80t)
elif schedule == '100':
nums = lookup_wrapper(Di, Do, NPS, NPS100, S100i, S100o, S100t)
elif schedule == '120':
nums = lookup_wrapper(Di, Do, NPS, NPS120, S120i, S120o, S120t)
elif schedule == '140':
nums = lookup_wrapper(Di, Do, NPS, NPS140, S140i, S140o, S140t)
elif schedule == '160':
nums = lookup_wrapper(Di, Do, NPS, NPS160, S160i, S160o, S160t)
elif schedule == 'STD':
nums = lookup_wrapper(Di, Do, NPS, NPSSTD, STDi, STDo, STDt)
elif schedule == 'XS':
nums = lookup_wrapper(Di, Do, NPS, NPSXS, XSi, XSo, XSt)
elif schedule == 'XXS':
nums = lookup_wrapper(Di, Do, NPS, NPSXXS, XXSi, XXSo, XXSt)
elif schedule == '5S':
nums = lookup_wrapper(Di, Do, NPS, NPSS5, SS5i, SS5o, SS5t)
elif schedule == '10S':
nums = lookup_wrapper(Di, Do, NPS, NPSS10, SS10i, SS10o, SS10t)
elif schedule == '40S':
nums = lookup_wrapper(Di, Do, NPS, NPSS40, SS40i, SS40o, SS40t)
elif schedule == '80S':
nums = lookup_wrapper(Di, Do, NPS, NPSS80, SS80i, SS80o, SS80t)
else:
raise ValueError('Schedule not recognized')
if nums is None:
raise ValueError('Pipe input is larger than max of selected scedule')
_nps, _di, _do, _t = nums
return _nps, _di/1E3, _do/1E3, _t/1E3
### Wire gauge schedules
# Stub's Steel Wire Gage
SSWG_integers = list(range(1, 81))
SSWG_inch = [0.227, 0.219, 0.212, 0.207, 0.204, 0.201, 0.199, 0.197, 0.194,
0.191, 0.188, 0.185, 0.182, 0.18, 0.178, 0.175, 0.172, 0.168,
0.164, 0.161, 0.157, 0.155, 0.153, 0.151, 0.148, 0.146, 0.143,
0.139, 0.134, 0.127, 0.12, 0.115, 0.112, 0.11, 0.108, 0.106,
0.103, 0.101, 0.099, 0.097, 0.095, 0.092, 0.088, 0.085, 0.081,
0.079, 0.077, 0.075, 0.072, 0.069, 0.066, 0.063, 0.058, 0.055,
0.05, 0.045, 0.042, 0.041, 0.04, 0.039, 0.038, 0.037, 0.036,
0.035, 0.033, 0.032, 0.031, 0.03, 0.029, 0.027, 0.026, 0.024,
0.023, 0.022, 0.02, 0.018, 0.016, 0.015, 0.014, 0.013]
SSWG_SI = [round(i*inch, 7) for i in SSWG_inch] # 7 decimals for equal conversion
# British Standard Wire Gage (Imperial Wire Gage)
BSWG_integers = [0.143, .167, 0.2, 0.25, 0.33, 0.5] + list(range(51))
BSWG_inch = [0.5, 0.464, 0.432, 0.4, 0.372, 0.348, 0.324, 0.3, 0.276, 0.252, 0.232,
0.212, 0.192, 0.176, 0.16, 0.144, 0.128, 0.116, 0.104, 0.092, 0.08,
0.072, 0.064, 0.056, 0.048, 0.04, 0.036, 0.032, 0.028, 0.024, 0.022,
0.02, 0.018, 0.0164, 0.0149, 0.0136, 0.0124, 0.0116, 0.0108, 0.01,
0.0092, 0.0084, 0.0076, 0.0068, 0.006, 0.0052, 0.0048, 0.0044, 0.004,
0.0036, 0.0032, 0.0028, 0.0024, 0.002, 0.0016, 0.0012, 0.001]
BSWG_SI = [round(i*inch,8) for i in BSWG_inch] # 8 decimals for equal conversion
# Music Wire Gauge
MWG_integers = [.167, 0.2, 0.25, 0.33, 0.5] + list(range(46))
MWG_inch = [0.004, 0.005, 0.006, 0.007, 0.008, 0.009, 0.01, 0.011, 0.012,
0.013, 0.014, 0.016, 0.018, 0.02, 0.022, 0.024, 0.026, 0.029,
0.031, 0.033, 0.035, 0.037, 0.039, 0.041, 0.043, 0.045, 0.047,
0.049, 0.051, 0.055, 0.059, 0.063, 0.067, 0.071, 0.075, 0.08,
0.085, 0.09, 0.095, 0.1, 0.106, 0.112, 0.118, 0.124, 0.13, 0.138,
0.146, 0.154, 0.162, 0.17, 0.18]
MWG_SI = [round(i*inch,7) for i in MWG_inch] # 7 decimals for equal conversion
# Scale gets bigger instead of smaller; reverse for convenience
MWG_integers.reverse()
MWG_inch.reverse()
MWG_SI.reverse()
# Steel Wire Gage -Also Washburn & Moen gage, American Steel gage;
# Wire Co.gage; Roebling Wire Gages.
SWG_integers = [0.143, .167, 0.2, 0.25, 0.33, 0.5] + list(range(51))
SWG_inch = [0.49, 0.4615, 0.4305, 0.3938, 0.3625, 0.331, 0.3065, 0.283, 0.2625,
0.2437, 0.2253, 0.207, 0.192, 0.177, 0.162, 0.1483, 0.135, 0.1205,
0.1055, 0.0915, 0.08, 0.072, 0.0625, 0.054, 0.0475, 0.041, 0.0348,
0.0318, 0.0286, 0.0258, 0.023, 0.0204, 0.0181, 0.0173, 0.0162,
0.015, 0.014, 0.0132, 0.0128, 0.0118, 0.0104, 0.0095, 0.009,
0.0085, 0.008, 0.0075, 0.007, 0.0066, 0.0062, 0.006, 0.0058,
0.0055, 0.0052, 0.005, 0.0048, 0.0046, 0.0044]
SWG_SI = [round(i*inch,8) for i in SWG_inch] # 8 decimals for equal conversion
# American Wire or Brown & Sharpe Gage
AWG_integers = [.167, 0.2, 0.25, 0.33, 0.5] + list(range(51))
AWG_inch = [0.58, 0.5165, 0.46, 0.4096, 0.3648, 0.3249, 0.2893, 0.2576, 0.2294,
0.2043, 0.1819, 0.162, 0.1443, 0.1285, 0.1144, 0.1019, 0.0907,
0.0808, 0.072, 0.0641, 0.0571, 0.0508, 0.0453, 0.0403, 0.0359,
0.032, 0.0285, 0.0253, 0.0226, 0.0201, 0.0179, 0.0159, 0.0142,
0.0126, 0.0113, 0.01, 0.00893, 0.00795, 0.00708, 0.0063, 0.00561,
0.005, 0.00445, 0.00396, 0.00353, 0.00314, 0.0028, 0.00249,
0.00222, 0.00198, 0.00176, 0.00157, 0.0014, 0.00124, 0.00111,
0.00099]
AWG_SI = [round(i*inch,9) for i in AWG_inch] # 9 decimals for equal conversion
# Birmingham or Stub's Iron Wire Gage
BWG_integers = [0.2, 0.25, 0.33, 0.5] + list(range(37))
BWG_inch = [0.5, 0.454, 0.425, 0.38, 0.34, 0.3, 0.284, 0.259, 0.238, 0.22,
0.203, 0.18, 0.165, 0.148, 0.134, 0.12, 0.109, 0.095, 0.083,
0.072, 0.065, 0.058, 0.049, 0.042, 0.035, 0.032, 0.028, 0.025,
0.022, 0.02, 0.018, 0.016, 0.014, 0.013, 0.012, 0.01, 0.009,
0.008, 0.007, 0.005, 0.004]
BWG_SI = [round(i*inch,6) for i in BWG_inch]
wire_schedules = {'BWG': (BWG_integers, BWG_inch, BWG_SI, True),
'AWG': (AWG_integers, AWG_inch, AWG_SI, True),
'SWG': (SWG_integers, SWG_inch, SWG_SI, True),
'MWG': (MWG_integers, MWG_inch, MWG_SI, False),
'BSWG': (BSWG_integers, BSWG_inch, BSWG_SI, True),
'SSWG': (SSWG_integers, SSWG_inch, SSWG_SI, True)}
def gauge_from_t(t, SI=True, schedule='BWG'):
r'''Looks up the gauge of a given wire thickness of given schedule.
Values are all non-linear, and tabulated internally.
Parameters
----------
t : float
Thickness, [m]
SI : bool, optional
If False, value in inches is returned, rather than m.
schedule : str
Gauge schedule, one of 'BWG', 'AWG', 'SWG', 'MWG', 'BSWG', or 'SSWG'
Returns
-------
gauge : float-like
Wire Gauge, []
Notes
-----
An internal variable, tol, is used in the selection of the wire gauge. If
the next smaller wire gauge is within 10% of the difference between it and
the previous wire gauge, the smaller wire gauge is selected. Accordingly,
this function can return a gauge with a thickness smaller than desired
in some circumstances.
Birmingham Wire Gauge (BWG) ranges from 0.2 (0.5 inch) to 36 (0.004 inch).
American Wire Gauge (AWG) ranges from 0.167 (0.58 inch) to 51 (0.00099
inch). These are used for electrical wires.
Steel Wire Gauge (SWG) ranges from 0.143 (0.49 inch) to 51 (0.0044 inch).
Also called Washburn & Moen wire gauge, American Steel gauge, Wire Co.
gauge, and Roebling wire gauge.
Music Wire Gauge (MWG) ranges from 0.167 (0.004 inch) to 46 (0.18
inch). Also called Piano Wire Gauge.
British Standard Wire Gage (BSWG) ranges from 0.143 (0.5 inch) to
51 (0.001 inch). Also called Imperial Wire Gage (IWG).
Stub's Steel Wire Gage (SSWG) ranges from 1 (0.227 inch) to 80 (0.013 inch)
Examples
--------
>>> gauge_from_t(.5, SI=False, schedule='BWG')
0.2
References
----------
.. [1] Oberg, Erik, Franklin D. Jones, and Henry H. Ryffel. Machinery's
Handbook. Industrial Press, Incorporated, 2012.
'''
tol = 0.1
# Handle units
if SI:
t_inch = round(t/inch, 9) # all schedules are in inches
else:
t_inch = t
# Get the schedule
try:
sch_integers, sch_inch, sch_SI, decreasing = wire_schedules[schedule]
except:
raise ValueError('Wire gauge schedule not found')
# Check if outside limits
sch_max, sch_min = sch_inch[0], sch_inch[-1]
if t_inch > sch_max:
raise ValueError('Input thickness is above the largest in the selected schedule')
# If given thickness is exactly in the index, be happy
if t_inch in sch_inch:
gauge = sch_integers[sch_inch.index(t_inch)]
else:
for i in range(len(sch_inch)):
if sch_inch[i] >= t_inch:
larger = sch_inch[i]
else:
break
if larger == sch_min:
gauge = sch_min # If t is under the lowest schedule, be happy
else:
smaller = sch_inch[i]
if (t_inch - smaller) <= tol*(larger - smaller):
gauge = sch_integers[i]
else:
gauge = sch_integers[i-1]
return gauge
def t_from_gauge(gauge, SI=True, schedule='BWG'):
r'''Looks up the thickness of a given wire gauge of given schedule.
Values are all non-linear, and tabulated internally.
Parameters
----------
gauge : float-like
Wire Gauge, []
SI : bool, optional
If False, value in inches is returned, rather than m.
schedule : str
Gauge schedule, one of 'BWG', 'AWG', 'SWG', 'MWG', 'BSWG', or 'SSWG'
Returns
-------
t : float
Thickness, [m]
Notes
-----
Birmingham Wire Gauge (BWG) ranges from 0.2 (0.5 inch) to 36 (0.004 inch).
American Wire Gauge (AWG) ranges from 0.167 (0.58 inch) to 51 (0.00099
inch). These are used for electrical wires.
Steel Wire Gauge (SWG) ranges from 0.143 (0.49 inch) to 51 (0.0044 inch).
Also called Washburn & Moen wire gauge, American Steel gauge, Wire Co.
gauge, and Roebling wire gauge.
Music Wire Gauge (MWG) ranges from 0.167 (0.004 inch) to 46 (0.18
inch). Also called Piano Wire Gauge.
British Standard Wire Gage (BSWG) ranges from 0.143 (0.5 inch) to
51 (0.001 inch). Also called Imperial Wire Gage (IWG).
Stub's Steel Wire Gage (SSWG) ranges from 1 (0.227 inch) to 80 (0.013 inch)
Examples
--------
>>> t_from_gauge(.2, False, 'BWG')
0.5
References
----------
.. [1] Oberg, Erik, Franklin D. Jones, and Henry H. Ryffel. Machinery's
Handbook. Industrial Press, Incorporated, 2012.
'''
try:
sch_integers, sch_inch, sch_SI, decreasing = wire_schedules[schedule]
except:
raise ValueError('Wire gauge schedule not found')
try:
i = sch_integers.index(gauge)
except:
raise ValueError('Input gauge not found in selected schedule')
if SI:
t = sch_SI[i]
else:
t = sch_inch[i]
return t
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