4.7.45
11249
12992
14735
Control valves
Safety valves
Table 2
SVL488 flow capacity for air or normal cubic meters per hour (Nm
3
/h) at 0°C and 1013 mbar
(calculated in accordance with AD-MERKBLATT A2 and TRD 421)
Valve size DN in/out
Flow area (mm2)
25/40
40/65
50/80
65/100
1662
2827
F
l o w c a p a c i t y f o r a i r N m
3
/ h
80/125
4301
3 998
6467
8 816
11071
13326
15581
17836
20091
20542
22 346
24601
25343
100/150
6648
6179
9 995
13626
17 111
20 597
24083
27 568
31054
31 752
S
S e
e t
t p
p r
r e
e s
s s
s u
u
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
8.2
9.0
10.0
r
r e
e (
( b
b a
a r
r g
g)
)
416
386
625
852
1069
1 287
1 505
1 723
1941
1 985
2159
2377
2451
2 812
3248
3 466
3 684
1075
999
1617
2204
2768
3331
3 895
4 459
5 023
5136
5587
6150
6334
7 278
8 405
8957
9 533
10.34
12.0
14.0
15.0
16.0
1545
2499
3406
4 278
5149
6021
6 892
7763
7937
8 635
9506
9 793
2 628
4251
5795
7 278
8 761
10243
11726
13208
13505
14691
16173
16658
Table 3 - SVL488 flow capacity for water in kilogrammes per hour (kg/h) at 20°C
(calcualted in accordance with AD-MERKBLATT A2 and TRD 421 at 10% overpressure)
Derated coefficient of discharge (Kdr) = 0.52
Valve size DN in/out
Flow area (mm2)
25/40
416
9 970
14100
17300
19900
22 300
24400
26 400
28200
28500
29 900
31500
32000
34 600
37300
38 600
39 900
40/65
1075
25800
36 500
44700
51600
57700
63 200
68 300
73000
73900
77 400
81600
82700
89 400
96 600
99700
103000
50/80
65/100
1662
2827
F
l o w c a p a c i t y f o r w a t e r k
g / h
80/125
4301
103000
126000
179000
206 000
231000
253 000
273 000
292 000
292 000
310000
326 000
334 000
100/150
6648
160000
226 000
276 000
319 000
357 000
391 000
422 000
451 000
458 000
S
S e
e t
t p
p r
r e
e s
s s
s u
u
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
8.2
9.0
10.0
r
r e
e (
( b
b a
a r
r g
g)
)
10.34
12.0
14.0
15.0
16.0
39 900
56 400
69100
79800
89 200
97700
106000
113000
114000
120000
126000
128000
138000
149000
154000
67900
96 000
118000
136000
152000
166000
180000
192000
194000
204 000
215000
218000
TI-P315-03 CH Issue 7
SVL488 Stainless Steel Safety Valve for Clean Service Applications
Page 4 of 5
The product must not be used in this region
The product must not be used in this region
