Fire dampers
Flange holes
FKR-EU
1
K4 – 1.1 – 33
03/2017 – DE/en
Technical data
Dimensions
Nominal size DN
315
355
400
450
500
560
630
710
800
ØD [mm]
314
354
399
449
499
559
629
709
799
ØD₁ [mm]
352
392
438
488
538
600
670
750
840
A [mm]
31
31
31
36
36
36
36
36
36
α [°]
45
45
45
45
45
30
30
30
22.5
No. of holes
8
8
8
8
8
12
12
12
16
FKR-EU-FL flange holes
Ø D
495
A
Ø D
₁
α
Ø 9,5
TOC