
INSTALLATION & MAINTENANCE INSTRUCTIONS - ORIGINAL VERSION
AVK BUTTERFLY VALVES, CENTRIC WITH LOOSE LINER
SERIES 820
12. MAX. OPERATING TORQUES
Incl. safety factor
Max. working pressure [bar]
DN
Top flange/shaft
2,5
6
10
16
20
25-40 F05-08
Diamond
- - - 23 28
50
F05-11 Diamond
-
-
-
41
53
65
F05-11 Diamond
-
-
-
45
58
80
F05-11 Diamond
-
-
53
69
89
100
F07-11 Diamond
41
-
76
88
113
125
F07-14 Diamond
61
-
92
153
197
150
F07-14 Diamond
73
-
122
165
213
200
F07-17 Diamond
108
-
203
294
382
250
F10-22 Diamond
188
-
265
354
461
300
F10-22 Diamond
276
-
448
529
687
350
F12-22 Diamond
369
506
800
972
1264
400
F12-27 Diamond
786
1071
1191
1488
1935
450
F14-45 round+key
1185
1659
1985
2454
3191
500
F14-45 round+key
1422
1850
1995
2732
3552
600
F16-70 round+key
2624
3113
3740
5468
7108
700
F25-70 round+key
2843
4010
5212
6197
-
750
F25-70 round+key
3281
4717
5832
7290
-
800
F25-70 round+key
3555
4739
6120
6738
-
900
F30-80 round+key
4648
5924
7564
9477
-
1000
F30-80 round+key
5924
7472
9477
11482
-
1100
F30-80 round+key
7655
9569
11846
14033
-
1200
F30-100 round+key
10024
12029
14216
17132
-
1400
F30-120
round+key
12575
18225
27724 - -
1600
F35-130 round+key
16767
24239
44834
-
-
13. KV VALUES M3/H
Opening angle of the valve
DN 20°
30°
40°
50°
60°
70°
80°
90°
32
-
1,5
5
10
15
26
34
40
40
-
2,7
8,5
16
25
37
46
50
50
2
7
15
28
45
68
88
100
65
3
11
24
48
85
138
180
210
80
8
22
50
83
134
230
312
360
100
15
35
70
130
225
410
585
650
125
28
70
135
230
360
600
920
1050
150
33
95
205
320
580
980
1410
1620
200
60
175
355
580
910
1600
2450
2800
250
132
340
590
940
1480
2550
3950
4480
300
200
505
890
1450
2100
3800
5960
6800
350
280
680
1200
2050
3150
5050
8100
9200
400
365
860
1500
2490
3980
6600
10200
11700
450
465
1080
1900
3150
5050
8700
13300
15200
500
580
1200
2300
3740
6150
11000
16800
18900
600
820
1600
2780
5200
8940
14500
23500
26800
700
890
2050
3450
6050
11050
18800
31500
37100
800
1300
2550
4950
8750
14200
23500
39500
48500
900
1650
3300
6400
11800
19400
31500
52500
61300
1000
2150
4250
8200
15100
23500
39400
65500
80500
1200
4000
7500
12500
19800
34000
55400
98300
119200
1400
5200
10120
18200
32500
51500
89500
142000
162000
1600
7100
14210
26050
45000
71200
118500
196200
228500
Page 5/6
MI Butterfly820 rev. C August 2017 GB
INSTALLATION & MAINTENANCE INSTRUCTIONS - ORIGINAL VERSION
AVK BUTTERFLY VALVES, CENTRIC WITH LOOSE LINER
SERIES 820