SIEMENS
FLENDER Standard Couplings
Fluid Couplings — FLUDEX Series
13/11
Siemens MD 10.1 · 2015
General information
13
Selection of FLUDEX size
The FLUDEX size is determined by the output to be transmitted
in comparison with the rated outputs listed in the following ta-
bles. No application factors or additional safety factors need be
taken into consideration. The rated outputs stated in the tables
normally require the maximum permissible filling (80 % to 85 %)
of the coupling and because of operating slip, lead to the cou-
pling heating up by approx. 50 °C relative to the ambient (cool-
ing air) temperature. With lower outputs, coupling heating will be
proportionately lower. If for continuous operation of the coupling
an absolute temperature (ambient temperature + coupling heat-
ing) of > 85 °C is expected, the coupling must be fitted with FPM
seals and 160 °C fusible safety plugs.
FA series
FG, FV and FN series
The specified coupling weights of the following selection tables are effective for maximum bores without oil filling.
Speed in rpm
600
740
890
980
1180
1350
1470
1600
1770
2000
2300
2600
2950
3550
Rated output
P
N
in kW
Size
1.2
1.6
2.8
4.2
5.5
6.9
8.7
11.7
15
19
24
33
222
1.2
2.3
4
5.5
9
14
18.5
23
29
37
48
60
70
90
297
2.6
4.8
8.7
11.5
18
27
34
40
51
65
82
97
120
145
342
5.7
10
16
21
36
49
61
74
87
105
135
165
180
395
11
21
32
41
65
90
110
127
155
190
230
290
370
450
19
36
60
75
115
154
190
215
260
310
395
516
37
69
109
134
200
260
320
360
435
540
590
Speed in rpm
600
740
890
980
1180
1350
1470
1600
1770
2000
2300
2600
2950
3550
Rated output
P
N
in kW
Size
4
7.5
12
16
26
38
48
61
85
110
140
170
220
290
370
7.5
15
23
30
48
70
90
115
140
175
220
280
340
425
15
30
45
58
95
140
180
210
245
300
380
480
490
28
55
85
110
180
255
300
350
420
525
660
565
55
110
170
220
350
450
520
600
730
900
655
110
210
330
440
600
760
870
1010
1220
755
240
440
700
810
1130
1440
1660
887
480
880
1400
1600
2000
2350
2500
887D
1)
1)
D = double-flow variant on request.
© Siemens AG 2015