Panametrics Sentinel, User Manual, Page: 16 / 166

Chapter 1. Installation
6 Sentinel™ User’s Manual
1.5.5 Maximum and Minimum Flow
Maximum and minimum flow rates through the Sentinel Flow Measurement System are based on the pipe diameter
and the process fluid pressure. The information in the following tables is approximate, and is based on representative
natural gas components at a process temperature of 70°F (21°C). See Table 3 and Table 4 below for English units and
Table 5 on page 7 and Table 6 on page 7 for metric units.
psig 6” 8” 10” 12” 14” 16” 18” 20” 24”
100 16.2 28.0 44.2 47.3 57.2 74.7 94.5 117.5 169.9
200 30.7 53.2 83.9 89.8 108.6 141.8 179.5 223.1 322.6
400 61.1 105.9 166.8 178.6 215.9 282.0 357.0 443.6 641.6
600 93.3 161.5 254.6 272.6 329.5 430.4 544.8 677.0 979.1
800 127.3 220.4 347.4 371.9 449.4 587.1 743.2 923.4 1335.6
1000 163.0 282.2 444.9 476.3 575.6 751.9 951.8 1182.7 1710.5
1200 200.3 346.8 546.7 585.3 707.3 924.0 1169.6 1453.3 2102.0
1400 238.8 413.6 651.9 697.9 843.5 1101.9 1394.7 1733.1 2506.6
1480 254.5 440.7 694.7 743.7 898.8 1174.1 1486.2 1846.8 2671.0
Maximum flow rates are based on 118 ft/sec flow velocity for 6” through 10” diameter pipes,
and on 89 ft/sec for 12” through 24” diameter pipes.
psig 6” 8” 10” 12” 14” 16” 18” 20” 24”
100 0.3 0.6 0.9 0.8 1.0 1.2 1.6 2.0 2.8
200 0.6 1.1 1.7 1.5 1.8 2.4 3.0 3.7 5.4
400 1.2 2.1 3.3 3.0 3.6 4.7 5.9 7.4 10.7
600 1.9 3.2 5.1 4.5 5.5 7.2 9.1 11.3 16.3
800 2.5 4.4 6.9 6.2 7.5 9.8 12.4 15.4 22.2
1000 3.3 5.6 8.9 7.9 9.6 12.5 15.8 19.7 28.4
1200 4.0 6.9 10.9 9.7 11.8 15.4 19.4 24.2 35.0
1400 4.8 8.3 13.0 11.6 14.0 18.3 23.2 28.8 41.7
1480 5.1 8.8 13.9 12.4 14.9 19.5 24.7 30.7 44.4
Minimum flow rates are based on 2.36 ft/sec flow velocity for 6” through 10” diameter pipes,
and on 1.48 ft/sec for 12” through 24” diameter pipes.