DZ-R

Circular sound attenuator

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DZ-R

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 2 × 8×M8 500, 1000, 1500 or 2000 50, 100 or 200
450 450 280 490 2 × 8×M8
500 500 315 540 2 × 8×M8
560 560 355 600 2 × 12×M8
630 630 400 670 2 × 12×M8
710 710 450 750 2 × 12×M8
800 800 500 840 2 × 16×M8
900 900 560 940 2 × 16×M8
1000 1000 630 1040 2 × 16×M8

*dimension can be customised to the customer's request.

Product Code

DZ-R-J Product
500 Dimension
/ -
1000 Length
F Installation
ISO 100 Insulation

Product

Options:
  • DZ-R
  • DZ-R-J

Dimension

Attenuator diameter in mm

Standard 100, 125, 160, 180, 200, 250, 300, 315, 355, 400, 450, 500, 560, 630, 710, 800, 900, 1000 mm

Optional: any dimension

Length

Attenuator length in mm

Standard 500, 1000, 1200, 2000 mm

Optional: any dimension

Installation

Options:
  • / – with spigot
  • F – with flange

Insulation

Options:
  • ISO 50 – 50 mm
  • ISO 100 – 100 mm
  • ISO 200 – 200 mm