Control systems Safety valves
4
Table 2 - SV60 flow capacity for air - normal m3/h at 0°C and 1013 mbar (calculated in accordance with AD-MERKBLATT A2 and TRD 421)
Valve size DN in/out
20/32 25/40 32/50
40/65
50/80 65/100 80/125 100/150 125/200 150/250
Orifice (mm)
17.0
23.8
30.6
38.0
50.1
59.0
73.0
91.0
105
125
Flow area (mm²)
230
445
740
1 140
1 979
2 734
4 185
6 504
8 659 12 272
w (P > 4 bar)
0.78
0.86
0.76
0.68
0.64
0.71
0.66
0.70
0.72
0.73
Set pressure (bar g)
Flow capacity for air m³/h
20.0
5 997
8 818
12 152 19 855 30 426 43 299 71 362 97 723
2 808
21.0
6 284
9 240
12 733 20 804 31 880 45 368 74 773
2 942
22.0
6 570
9 661
13 314 21 753 33 335 47 438 78 184
3 076
23.0
6 857 10 083 13 894 22 702 34 789 49 507 81 595
3 210
24.0
7 144 10 504 14 475 23 651 36 243 51 577 85 006
3 345
25.0
7 430 10 926 15 056 24 600 37 698 53 647 88 417
3 479
26.0
7 717 11 347 15 637 25 549 39 152 55 716
3 613
27.0
8 004 11 769 16 218 26 498 40 606 57 786
3 747
4.7 47
28.0
8 290 12 190 16 799 27 447 42 061 59 856
3 882
29.0
8 577 12 612 17 379 28 397 43 515 61 925
4 016
30.0
8 864 13 033 17 960 29 346 44 969 63 995
4 150
31.0
9 150 13 455 18 541 30 295 46 424 66 064
4 284
32.0
9 437 13 876 19 122 31 244 47 878 68 134
4 418
33.0
9 724 14 298 19 703 31 907
4 553
34.0
4 687 10 010 14 719 20 284 32 865
35.0
4 821 10 297 15 141 20 865 33 809
36.0
4 955 10 583 15 562 21 445 34 749
37.0
5 089 10 870 15 984 22 026 35 690
38.0
5 224 11 157 16 405 22 607 36 631
39.0
5 358 11 443 16 826 23 188 37 572
40.0
5 492 11 730 17 248 23 769 38 514
TI-S13-27 CMGT Issue 17
Page 9 of 13
SV60 Safety Valve
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