Sizing Steam Pipes (lb/h)

Steam is a compressible gas where the capacity of the pipe line depends on the size of the pipes and the steam pressure. This table can be used for fast sizing of steam pipes dimensions

This table can be used for fast calculation of steam pipes sch. 80.

  • in general - 80 ft/sec is a recommended steam velocity
Capacity (lb/hour)
Pressure (psi)Steam Velocity (ft/sec)Pipe Size (inch)
1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4" 5" 6" 8" 10" 12"
5 50 12 26 45 70 100 190 280 410 760 1250 1770 3100 5000 7100
80 19 45 75 115 170 300 490 710 1250 1800 2700 5200 7600 11000
120 29 60 110 175 245 460 700 1000 1800 2900 4000 7500 12000 16500
10 50 15 35 55 88 130 240 365 550 950 1500 2200 3770 6160 8500
80 24 52 95 150 210 380 600 900 1500 2400 3300 5900 9700 13000
120 35 72 135 210 330 590 850 1250 2200 3400 4800 9000 14400 20500
20 50 21 47 82 123 185 210 520 740 1340 1980 2900 5300 8000 11500
80 32 70 120 190 260 520 810 1100 1900 3100 4500 8400 13200 18300
120 50 105 190 300 440 840 1250 1720 3100 4850 6750 1300 19800 28000
30 50 26 56 100 160 230 420 650 950 1650 2600 3650 6500 10500 14500
80 42 94 155 250 360 655 950 1460 2700 3900 5600 10700 16500 23500
120 62 130 240 370 570 990 1550 2100 3950 6100 8700 16000 25000 35000
40 50 32 75 120 190 260 505 790 1100 1900 3100 4200 8200 12800 18000
80 51 110 195 300 445 840 1250 1800 3120 4900 6800 13400 20300 28300
120 75 160 290 460 660 1100 1900 2700 4700 7500 11000 19400 30500 42500
60 50 43 95 160 250 360 650 1000 1470 2700 3900 5700 10700 16500 24000
80 65 140 250 400 600 1000 1650 2400 4400 6500 9400 17500 27200 38500
120 102 240 410 610 950 1660 2600 3800 6500 10300 14700 26400 41000 58000
80 50 53 120 215 315 460 870 1300 1900 3200 5200 7000 13700 21200 29500
80 83 190 320 500 730 1300 2100 3000 5000 8400 12200 21000 33800 47500
120 130 290 500 750 1100 1900 3000 4200 7800 12000 17500 30600 51600 71700
100 50 63 130 240 360 570 980 1550 2100 4000 6100 8800 16300 26500 35500
80 102 240 400 610 950 1660 2550 3700 6400 10200 14600 26000 41000 57300
120 150 350 600 900 1370 2400 3700 5000 9100 15000 21600 38000 61500 86300
120 50 74 160 290 440 660 1100 1850 2600 4600 7000 10500 18600 29200 41000
80 120 270 450 710 1030 1800 2800 4150 7200 11600 16500 29200 48000 73800
120 175 400 680 1060 1520 2850 4300 6500 10700 17500 26000 44300 70200 97700
150 50 90 208 340 550 820 1380 2230 3220 5500 8800 12900 22000 35600 50000
80 145 320 570 900 1250 2200 3400 4900 8500 14000 20000 35500 57500 79800
120 215 450 850 1280 1890 3400 5300 7500 13400 20600 30000 55500 85500 120000
200 50 110 265 450 680 1020 1780 2800 4120 7100 11500 16300 28500 45300 64000
80 180 410 700 1100 1560 2910 4400 6600 11000 18000 26600 46000 72300 100000
120 250 600 1100 1630 2400 4350 6800 9400 16900 25900 37000 70600 109000 152000

Related Topics

  • Steam and Condensate - Steam & condensate properties - capacities, pipe sizing, systems configuration and more
  • Pipe Sizing - Sizing steam and condensate pipes - pressure loss, recommended velocity, capacity and more

Related Documents

Tag Search

  • en: steam pipes sizing design velocity speed pressure

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