Control valves
Safety valves
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
1140
1979
2734
4185
6504
8659
12272
w
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Set pressure (bar g)
Flow capacity for water tonnes/h
0.5
4.6
8.9
14.9
22.9
39.8
55.0
84.1
130.8
174.1
246.7
1.0
6.5
12.6
21.0
32.4
56.3
77.7
119.0
184.9
246.2
348.9
2.0
9.2
17.9
29.8
45.8
79.6
109.9
168.3
261.5
348.2
493.5
3.0
11.3
21.9
36.5
56.1
97.5
134.6
206.1
320.3
426.4
604.4
4.0
13.1
25.3
42.1
64.8
112.6
155.5
238.0
369.9
492.4
697.9
5.0
14.6
28.3
47.1
72.5
125.8
173.8
266.1
413.5
550.5
780.2
6.0
16.0
31.0
51.6
79.4
137.8
190.4
291.5
453.0
603.1
854.7
7.0
17.3
33.5
55.7
85.8
148.9
205.7
314.9
489.3
651.4
923.2
8.0
18.5
35.8
59.5
91.7
159.2
219.9
336.6
523.1
696.4
986.9
9.0
19.6
37.9
63.1
97.2
168.8
233.2
357.0
554.8
738.6
1 046.8
10.0
20.6
40.0
66.6
102.5
178.0
245.8
376.3
584.8
778.6
1 103.4
11.0
21.7
42.0
69.8
107.5
186.6
257.8
394.7
613.3
816.6
1 157.3
12.0
22.6
43.8
72.9
112.3
194.9
269.3
412.2
640.6
852.9
1 208.7
13.0
23.5
45.6
75.9
116.9
202.9
280.3
429.1
666.8
887.7
1 258.1
14.0
24.4
47.3
78.8
121.3
210.6
290.9
445.3
691.9
921.2
1 305.6
15.0
25.3
49.0
81.5
125.5
218.0
301.1
460.9
716.2
953.5
1 351.4
16.0
26.1
50.6
84.2
129.7
225.1
310.9
476.0
739.7
984.8
1 395.7
17.0
26.9
52.2
86.8
133.7
232.0
320.5
490.7
762.5
1 015.1
-
18.0
27.7
53.7
89.3
137.5
238.8
329.8
504.9
784.6
1 044.6
-
19.0
28.5
55.1
91.7
141.3
245.3
338.8
518.7
806.1
1 073.2
-
20.0
29.2
56.6
94.1
145.0
251.7
347.6
532.2
827.0
1 101.1
-
21.0
29.9
58.0
96.5
148.6
257.9
356.2
545.3
847.4
-
-
22.0
30.6
59.3
98.7
152.0
264.0
364.6
558.2
867.4
-
-
23.0
31.3
60.7
100.9
155.5
269.9
372.8
570.7
886.9
-
-
24.0
32.0
62.0
103.1
158.8
275.7
380.8
583.0
906.0
-
-
25.0
32.6
63.2
105.2
162.1
281.4
388.7
595.0
940.0
-
-
26.0
33.3
64.5
107.3
165.3
287.0
396.4
606.8
-
-
-
27.0
33.9
65.7
109.4
168.4
292.4
403.9
618.4
-
-
-
28.0
34.6
66.9
111.4
171.5
297.8
411.3
629.7
-
-
-
29.0
35.2
68.1
113.3
174.6
303.1
418.6
640.9
-
-
-
30.0
35.8
69.3
115.3
177.6
308.2
425.8
651.8
-
-
-
31.0
36.4
70.4
117.2
180.5
313.3
432.8
662.6
-
-
-
32.0
36.9
71.6
119.1
183.4
318.3
439.7
673.2
-
-
-
33.0
37.5
72.7
120.9
186.2
323.3
-
-
-
-
-
34.0
38.1
73.8
122.7
189.0
328.1
-
-
-
-
-
35.0
38.6
74.8
124.5
191.8
332.9
-
-
-
-
-
36.0
39.2
75.9
126.3
194.5
337.7
-
-
-
-
-
37.0
39.7
76.9
128.0
197.2
342.3
-
-
-
-
-
38.0
40.3
78.0
129.7
199.8
346.9
-
-
-
-
-
39.0
40.8
79.0
131.4
202.4
351.4
-
-
-
-
-
40.0
41.3
80.0
133.1
205.0
355.9
-
-
-
-
-
4.7.17
Size
Set pressure (bar g)
0.2 - 0.49 0.5 - 0.99 1.0 - 1.49 1.5 - 1.99 2.0 - 2.49 2.5 - 2.99
3.0 - 3.49 3.5 - 3.99 Above 4.0
DN20 x DN32
0.56
0.62
0.69
0.73
0.75
0.76
0.77
0.78
0.78
DN25 x DN40
0.62
0.67
0.75
0.80
0.82
0.84
0.85
0.85
0.86
DN32 x DN50
0.56
0.60
0.68
0.73
0.75
0.76
0.76
0.76
0.76
DN40 x DN65
0.45
0.51
0.59
0.64
0.66
0.68
0.68
0.68
0.68
DN50 x DN80
0.47
0.49
0.55
0.59
0.61
0.63
0.63
0.63
0.64
DN65 x DN100
0.50
0.55
0.61
0.66
0.68
0.69
0.70
0.71
0.71
DN80 x DN125
0.45
0.50
0.56
0.60
0.63
0.64
0.65
0.66
0.66
DN100 x DN150
0.48
0.52
0.59
0.63
0.66
0.67
0.68
0.69
0.70
DN125 x DN200
0.50
0.55
0.61
0.65
0.68
0.70
0.71
0.72
0.72
DN150 x DN250
0.51
0.56
0.62
0.66
0.69
0.71
0.72
0.73
0.73
Table 3 - SV60 flow capacity for water in tonnes / h at 25% overpressure
(calculated in accordance with AD-MERKBLATT A2 and TRD 421)
Table 4 w/Kdr values for SV60 safety valves
TI-S13-27 CH Issue 13
SV60 Safety Valve
Page 6 of 7
