Charot MAX'O GAZ, Техническое руководство

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14
3 6 9 12 15 20 25 30 40 50
20 9.7 6.6
25 18 12 10 8.5 7.5
32 39 27 21 18 16 14 12 11 9.2 8.1
40 59 40 32 27 24 21 18 16 14 12
50 110 76 61 52 46 39 34 31 26 23
65 220 150 120 100 92 79 70 63 54 47
80
340 230 190 160 140 120 110 97 83 73
100 690 470 380 330 290 250 220 200 170 150
Length of pipe (metres)
Nominal
size (mm)
Discharge (m³/h)
10 20 30 40 50 60 70 80 90 100 125 150
3/4 340 230
1 640 440 350
1¼ 1400 930 740 630 560 500 460 430 400 380
1½ 2100 1400 1100 960 850 760 700 650 610 570 510 460
2 3900 2600 2100 1800 1600 1400 1300 1200 1100 1000 960 860
2½ 7700 5300 4300 3600 3200 2900 2700 2500 2300 2200 1900 1800
3 12000 8200 6600 5600 5000 4500 4100 3800 3600 3400 3000 2700
4 24000 1700 1300 11000 10000 9200 8400 7800 7300 6900 6100 5500
Discharge (FT³/h)
Length of pipe (feet)
Nominal
size (ins)
THE GAS PIPEWORK CONNECTIONS
The size of the gas pipework to the boilers should be chosen to ensure the necessary minimum pressure for the nominal required flow
rate at the upstream entry point of the gas train.
The diameter of the pipe lines will be calculated as a function of the allowed pressure drop, the length of the pipework distribution &
the number of fittings in the distribution.
There are a number of ways of carrying out these calculations and the attached is based on C.P. 331 1974.
Discharge in a straight horizontal steel pipe (to table 2, medium, of BS 1387:1967) with 1m.bar 0.4 in w.g. differential
pressure between the ends, for gas of relative density 0.6 (air=1)
GAS FLOW IN
STEEL TUBE