Kv values:
DN
Kv values at opening angle
20°
30°
40°
50°
60°
70°
80°
90°
50
3
9
20
33
65
110
124
125
65
9
15
30
64
118
195
214
222
80
19
40
66
117
196
321
353
363
100
29
75
137
213
316
487
584
618
125
48
100
185
315
550
895
1060
1120
150
60
150
281
450
789
1280
1630
1730
200
110
281
472
759
1480
2880
3710
3900
250
200
444
738
1190
2110
3880
5180
5410
300
250
682
1060
1670
3120
6360
8620
8930
Kv values in m³/h
When the opening angle is below 30° no regulation should be made!
7.4 Product conformity
Machinery Directive:
2006/42/EC
Pressure Equipment
Directive:
2014/68/EU
Food:
FDA
Drinking water:
ACS
WRAS
Belgaqua
Explosion protection:
ATEX (2014/34/EU), order code Special version X and Y
ATEX marking:
Special function code X
Gas: II -/2 G Ex h -/IIB T6...T3 -/Gb X
Dust: II -/2D Ex h -/IIIC T150°C -/Db X
Special function code Y
Gas: II 2 G Ex h /IIC T6...T3 Gb X
Dust: II 2D Ex h /IIIC T150°C Db X
7.5 Mechanical data
Torques:
DN
PS
3 bar
10 bar
16 bar
50
-
-
9
65
-
-
15
80
-
-
25
100
-
-
40
125
-
-
60
150
-
-
100
200
145
-
242
250
152
310
-
300
245
330
-
Torques in Nm
Working medium water (20 °C) and optimal operating conditions
Butterfly valves with bonded liner: the torques must be multiplied by the factor 1.3
GEMÜ R481
www.gemu-group.com
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7 Technical data
