Flanges

The principal application of our range of interchangeable fittings allows you to hang your ducting from almost any surface imaginable, be it a roof, entire structure, or wall

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Code F (Galvanised)

f_1

Dimensional Specifications

Product Code
Duct
Diameter
nominal
D
mm
Flange
d1
mm
D2
mm
b
Width of
flange mm
Size of hole
mm
n
Number
of holes
Weight
kg
F80
80
83
115
133
25
9
8
0.263
F100
100
103
135
153
9
8
0.313
F125
125
128
160
178
25
9
8
0.378
F140
140
143
175
193
25
9
8
0.412
F150
150
155
185
205
25
9
8
0.545
F160
160
165
195
215
25
9
8
0.576
F180
180
185
215
235
25
9
8
0.638
F200
200
205
235
255
25
9
12
0.700
F225
225
230
260
280
25
9
12
0.750
F250
250
255
285
305
25
9
12
0.854
F275
275
280
310
330
25
9
12
0.958
F300
300
305
336
355
25
9
12
1.008
F315
315
320
351
370
25
9
12
1.258
F325
325
330
360
380
25
9
12
1.460
F350
350
355
389
415
30
11
12
1.839
F375
375
380
424
440
30
9
12
1.680
F400
400
405
439
465
30
11
16
2.080
F425
425
430
462
440
30
11
16
1.900
F450
450
455
389
515
30
11
16
2.321
F475
475
480
515
540
30
11
16
2.130
F500
500
505
540
565
30
11
16
2.561
F550
550
535
590
615
30
11
16
2.802
F600
600
605
640
665
30
11
16
3.043
F630
630
635
670
695
30
11
24
3.188
F650
650
655
690
715
30
11
24
3.284
F700
700
705
750
785
40
11
24
3.525
F750
750
755
800
835
40
11
24
5.085
F800
800
805
850
885
40
11
24
5.406
F850
850
855
900
935
40
11
24
5.727
F900
900
905
950
985
40
11
24
6.048
F950
950
955
1000
1035
40
11
24
6.370
F1000
1000
1005
1050
1085
40
11
24
6.691
F1250
1250
1255
1300
1335
40
11
28
6.850