Description
The circular sound attenuator is used to attenuate fan noise. It can be connected to the suction or pressure side of axial fans, the suction side of radial fans or it can be installed in circular ducts.
Construction
DZ-R - consists of an outer casing, an inner perforated layer and a mineral wool filling.
DZ-R-J - consists of an outer casing, an inner perforated layer filled with mineral wool, a damping core and a flange.
The exposed surface of mineral wool is protected with black glass voile cover.
Material
galvanized sheet metal, mineral wool
Installation
Connection to the pipe with a round spigot or flange.
Dimensions
DZ-R
DZ-R - circular sound attenuator
- L = 500, 1000, 1500 or 2000 mm
- A = 50, 100 or 200 mm
DZ-R-J
DZ-R-J - circular sound attenuator with core and flange
- 1 - inner perforated layer
- 2 - core
- 3 - air guide
- 4 - mineral wool filling
- 5 - rivet nuts
| DZ-R-J | Ø D* | Ø E* | Ø F* | nuts* | L* | A |
|---|---|---|---|---|---|---|
| 400 | 400 | 250 | 440 | 2x 8x M8 | 500, 1000, 1500 or 2000 | 50, 100 or 200 |
| 450 | 450 | 280 | 490 | 2x 8x M8 | ||
| 500 | 500 | 315 | 540 | 2x 8x M8 | ||
| 560 | 560 | 355 | 600 | 2x 12x M8 | ||
| 630 | 630 | 400 | 670 | 2x 12x M8 | ||
| 710 | 710 | 450 | 750 | 2x 12x M8 | ||
| 800 | 800 | 500 | 840 | 2x 16x M8 | ||
| 900 | 900 | 560 | 940 | 2x 16x M8 | ||
| 1000 | 1000 | 630 | 1040 | 2x 16x M8 |
*dimension can be customised to the customer's request.