Flowmetering Gilflo and ILVA flowmeters 3
Sizing - Gilflo 'B' flowmeter minimum and maximum saturated steam flowrate in kg/h Notes: 1. Q E = The equivalent water flowrate litres /min for a Gilflo 'B' flowmeter. These equivalent water flowrates are based on a differential pressure across the flowmeter of 349 m bar. 2. Minimum flow is 1% of maximum (100:1 turndown). 3. The table below is a guide only.
Steam pressure bar g
Size
QE
1
3
5
7
10
12
15
20
25
30
40
Max.
355 732 1 016 1 233 1 415 1 651 1 791 1 983 2 269 2 526 2 763 3 195
DN50
Min.
4
7
10
12
14
17
18
20
23
25
28
32
Max.
1 165 2 403 3 335 4 046 4 645 5 418 5 877 6 508 7 447 8 291 9 068 10 485
DN80
Min.
12
24
33
40
46
54
59
65
74
83
91
105
Max.
1 870 3 857 5 353 6 494 7 456 8 697 9 434 10 446 11 954 13 308 14 556 16 830
DN100
3.2 35
Min.
19
39
54
65
75
87
94
104 120 133 146 168
Max.
4 550 9 385 13 025 15 802 18 141 21 161 22 955 25 416 29 085 32 382 35 416 40 951
DN150
Min.
46
94 130 158 181 212 230 254 291 324 354 410
Max.
8 085 16 675 23 144 28 078 32 235 37 601 40 789 45 163 51 683 57 539 62 932 72 767
DN200
Min.
81 167 231 281 322 376 408 452 517 575 629 728
Max. 11 120 22 936 31 832 38 619 44 335 51 716 56 101 62 116 71 084 79 139 86 556 100 083 Min. 111 229 318 386 443 517 561 621 711 791 866 1001 Max. 19 305 39 818 55 262 67 044 76 970 89 783 97 395 107 838 123 406 137 390 150 267 173 750 Min. 193 398 553 670 770 898 974 1 078 1 234 1 374 1 503 1 738 Max. 31 360 64 682 89 770 108 910 125 033 145 847 158 213 175 177 200 467 223 183 244 101 282 248 Min. 314 647 898 1 089 1 250 1 458 1 582 1 752 2 005 2 232 2 441 2 822
DN250
DN300
DN400
How to order example 1 off Spirax Sarco DN150 Gilflo 'B' flowmeter flanged to EN 1092 PN16.
TI-P337-08 EMM Issue 9
Page 5 of 7
Gilflo 'B' Flowmeter Pipeline Unit
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