Steam Pipe Sizing Chart
Steam Pipe Sizing Table (Carrying capacity in Kg/h)
Pressure bar |
Velocity m/s |
15 mm |
20 mm |
25 mm |
32 mm |
40 mm |
50 mm |
65 mm |
80 mm |
100 mm |
125 mm |
150 mm |
200 mm |
250 mm |
300 mm |
0.4 |
15 |
7 |
14 |
24 |
37 |
52 |
99 |
145 |
213 |
394 |
648 |
917 |
1606 |
2590 |
3678 |
25 |
10 |
25 |
40 |
62 |
92 |
162 |
265 |
384 |
675 |
972 |
1457 |
2806 |
4101 |
5936 |
|
40 |
17 |
35 |
64 |
102 |
142 |
265 |
403 |
576 |
1037 |
1670 |
2303 |
4318 |
6909 |
9500 |
|
0.7 |
15 |
7 |
16 |
25 |
40 |
59 |
109 |
166 |
250 |
431 |
680 |
1006 |
1708 |
2791 |
3852 |
25 |
12 |
25 |
45 |
72 |
100 |
182 |
287 |
430 |
716 |
1145 |
1575 |
2816 |
4629 |
6204 |
|
40 |
18 |
37 |
68 |
106 |
167 |
298 |
428 |
630 |
1108 |
1712 |
2417 |
4532 |
7251 |
10323 |
|
1.0 |
15 |
8 |
17 |
29 |
43 |
65 |
112 |
182 |
260 |
470 |
694 |
1020 |
1864 |
2814 |
4045 |
25 |
12 |
26 |
48 |
72 |
100 |
193 |
300 |
445 |
730 |
1160 |
1660 |
3099 |
4869 |
6751 |
|
40 |
19 |
39 |
71 |
112 |
172 |
311 |
465 |
640 |
1150 |
1800 |
2500 |
4815 |
7333 |
10370 |
|
2.0 |
15 |
12 |
25 |
45 |
70 |
100 |
182 |
280 |
410 |
715 |
1125 |
1580 |
2814 |
4545 |
6277 |
25 |
19 |
43 |
70 |
112 |
162 |
295 |
428 |
656 |
1215 |
1755 |
2520 |
4815 |
7425 |
10575 |
|
40 |
30 |
64 |
115 |
178 |
275 |
475 |
745 |
1010 |
1895 |
2925 |
4175 |
7678 |
11997 |
16796 |
|
3.0 |
15 |
16 |
37 |
60 |
93 |
127 |
245 |
385 |
535 |
925 |
1505 |
2040 |
3983 |
6217 |
8743 |
25 |
26 |
56 |
100 |
152 |
225 |
425 |
632 |
910 |
1580 |
2480 |
3440 |
6779 |
10269 |
14316 |
|
40 |
41 |
87 |
157 |
250 |
357 |
595 |
1025 |
1460 |
2540 |
4050 |
5940 |
10476 |
16470 |
22950 |
|
4.0 |
15 |
19 |
42 |
70 |
108 |
156 |
281 |
432 |
635 |
1166 |
1685 |
2460 |
4618 |
7121 |
10358 |
25 |
30 |
63 |
115 |
180 |
270 |
450 |
742 |
1080 |
1980 |
2925 |
4225 |
7866 |
12225 |
17304 |
|
40 |
49 |
116 |
197 |
295 |
456 |
796 |
1247 |
1825 |
3120 |
4340 |
7050 |
12661 |
19663 |
27816 |
|
5.0 |
15 |
22 |
49 |
87 |
128 |
187 |
352 |
526 |
770 |
1295 |
2105 |
2835 |
5548 |
8586 |
11947 |
25 |
36 |
81 |
135 |
211 |
308 |
548 |
885 |
1265 |
2110 |
3540 |
5150 |
8865 |
14268 |
20051 |
|
40 |
59 |
131 |
225 |
338 |
495 |
855 |
1350 |
1890 |
3510 |
5400 |
7870 |
13761 |
23205 |
32244 |
|
6.0 |
15 |
26 |
59 |
105 |
153 |
225 |
425 |
632 |
925 |
1555 |
2525 |
3400 |
6654 |
10297 |
14328 |
25 |
43 |
97 |
162 |
253 |
370 |
658 |
1065 |
1520 |
2530 |
4250 |
6175 |
10629 |
17108 |
24042 |
|
40 |
71 |
157 |
270 |
405 |
595 |
1025 |
1620 |
2270 |
4210 |
6475 |
9445 |
16515 |
27849 |
38697 |
|
7.0 |
15 |
29 |
63 |
110 |
165 |
260 |
445 |
705 |
952 |
1815 |
2765 |
3990 |
7390 |
12015 |
16096 |
25 |
49 |
114 |
190 |
288 |
450 |
785 |
1205 |
1750 |
3025 |
4815 |
6900 |
12288 |
19377 |
27080 |
|
40 |
76 |
177 |
303 |
455 |
690 |
1210 |
1865 |
2520 |
4585 |
7560 |
10880 |
19141 |
30978 |
43470 |
|
8.0 |
15 |
32 |
70 |
126 |
190 |
285 |
475 |
800 |
1125 |
1990 |
3925 |
4540 |
8042 |
12625 |
17728 |
25 |
54 |
122 |
205 |
320 |
465 |
810 |
1260 |
1870 |
3240 |
5220 |
7120 |
13140 |
21600 |
33210 |
|
40 |
84 |
192 |
327 |
510 |
730 |
1370 |
2065 |
3120 |
5135 |
8395 |
12470 |
21247 |
33669 |
46858 |
|
10.0 |
15 |
41 |
95 |
155 |
250 |
372 |
626 |
1012 |
1465 |
2495 |
3995 |
5860 |
9994 |
16172 |
22713 |
25 |
66 |
145 |
257 |
405 |
562 |
990 |
1530 |
2205 |
3825 |
6295 |
8995 |
15966 |
25860 |
35890 |
|
40 |
104 |
216 |
408 |
615 |
910 |
1635 |
2545 |
3600 |
6230 |
9880 |
14390 |
26621 |
41011 |
57560 |
|
14.0 |
15 |
50 |
121 |
205 |
310 |
465 |
810 |
1270 |
1870 |
3220 |
5215 |
7390 |
12921 |
20538 |
29016 |
25 |
85 |
195 |
331 |
520 |
740 |
1375 |
2080 |
3120 |
5200 |
8500 |
12560 |
21720 |
34139 |
47128 |
|
40 |
126 |
305 |
555 |
825 |
1210 |
2195 |
3425 |
4735 |
8510 |
13050 |
18630 |
35548 |
54883 |
76534 |
Pressure bar |
Velocity m/s |
15 mm |
20 mm |
25 mm |
32 mm |
40 mm |
50 mm |
65 mm |
80 mm |
100 mm |
125 mm |
150 mm |
200 mm |
250 mm |
300 mm |
15 |
15 |
85 |
148 |
241 |
417 |
567 |
935 |
1335 |
2061 |
3548 |
5574 |
8052 |
13943 |
21977 |
31521 |
25 |
141 |
247 |
402 |
695 |
945 |
1559 |
2224 |
3434 |
5913 |
9292 |
13420 |
23239 |
36629 |
52536 |
|
40 |
226 |
395 |
643 |
1112 |
1513 |
2494 |
3559 |
5495 |
9461 |
14868 |
21472 |
37182 |
58607 |
84057 |
|
17 |
15 |
96 |
167 |
271 |
470 |
639 |
1053 |
1503 |
2321 |
3996 |
6278 |
9067 |
15702 |
24749 |
35497 |
25 |
159 |
278 |
453 |
783 |
1064 |
1756 |
2505 |
3864 |
6659 |
10464 |
15113 |
26170 |
41249 |
59162 |
|
40 |
255 |
445 |
724 |
1252 |
1704 |
2809 |
4008 |
6188 |
10654 |
16743 |
24180 |
41872 |
65999 |
94659 |
|
20 |
15 |
112 |
195 |
317 |
549 |
747 |
1232 |
1758 |
2715 |
4673 |
7343 |
10606 |
18365 |
28948 |
41519 |
25 |
186 |
325 |
530 |
915 |
1245 |
2054 |
2929 |
4523 |
7788 |
12239 |
17677 |
30609 |
48247 |
69199 |
|
40 |
298 |
520 |
847 |
1465 |
1993 |
3285 |
4688 |
7238 |
12463 |
19548 |
28282 |
48975 |
77196 |
110718 |
|
24 |
15 |
133 |
232 |
378 |
654 |
889 |
1466 |
2094 |
3232 |
5565 |
8744 |
12629 |
21868 |
34468 |
49437 |
25 |
221 |
387 |
631 |
1090 |
1482 |
2445 |
3488 |
5386 |
9274 |
14573 |
20048 |
36448 |
57448 |
82396 |
|
40 |
355 |
620 |
1008 |
1744 |
2373 |
3912 |
5582 |
8618 |
14839 |
23319 |
33676 |
58316 |
91918 |
131833 |
|
28 |
15 |
154 |
269 |
437 |
757 |
1029 |
1696 |
2422 |
3739 |
6437 |
10114 |
14608 |
25296 |
39871 |
57186 |
25 |
256 |
448 |
729 |
1261 |
1714 |
2828 |
4035 |
6230 |
10728 |
16858 |
24347 |
42161 |
66453 |
95312 |
|
40 |
410 |
717 |
1167 |
2017 |
2745 |
4525 |
6457 |
9969 |
17164 |
26974 |
38955 |
67457 |
106326 |
152498 |
|
34 |
15 |
186 |
324 |
528 |
913 |
1241 |
2047 |
2923 |
4512 |
7767 |
12205 |
17627 |
30523 |
48112 |
69004 |
25 |
309 |
541 |
880 |
1522 |
2069 |
3413 |
4869 |
7518 |
12944 |
20342 |
29378 |
50874 |
80186 |
115009 |
|
40 |
495 |
865 |
1408 |
2434 |
3312 |
5460 |
7791 |
12029 |
20712 |
32548 |
47005 |
81397 |
128299 |
184013 |
|
42 |
15 |
231 |
401 |
654 |
1131 |
1537 |
2535 |
3620 |
5588 |
9620 |
15117 |
21833 |
37806 |
59591 |
85469 |
25 |
382 |
670 |
1090 |
1885 |
2562 |
4227 |
6030 |
9311 |
16033 |
25195 |
36388 |
63013 |
99319 |
142451 |
|
40 |
613 |
1071 |
1744 |
3015 |
4103 |
6763 |
9650 |
14900 |
25654 |
40315 |
58221 |
100819 |
158913 |
227920 |