2021 | INDUSTRIAL VENTILATION
VDL
Flexible connectors for roof fans
Use
Absorbing vibration from the fan to the air duct.
Partial thermal distortion compensation in the air ductworks.
For mounting with the Tower-H, Tower-V, Tower-H EC, Tower-V EC roof fans.
Design
Consists of two flanges interconnected with a vibration-absorbing material.
The flanges made of galvanized steel.
The connecting vibration-isolating material is made of nylon reinforced polyethylene fabric.
Overall dimensions
[mm]
Type
VDL 220-225
VDL 250-315
VDL 355-500
VDL 560
VDL 710
Standard size of compatible fans
190, 220, 225
250, 280, 310
355, 400, 450, 500
560, 630
710
∅ D
183
256
402
567
630
∅ D1
210
285
430
605
674
∅ D2
235
308
484
639
705
Mounting
The end flanges of the flexible connector are fixed to the mating flanges of the air duct or fan ( FDL counterflange) or to the backdraft damper through galvanized bolts and clamps.
∅ d
9
9
7
7
10
L
200
200
200
200
260
Weight [kg]
0.8
1.2
1.75
2.62
7.1
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