Lindab LRLB Rectangular Silencer
Product Description
The Lindab LRLB is a rectangular silencer designed for low installation height. It features sound-attenuating material made from Lindtec glasull, with a surface treatment that can be cleaned using a rotating nylon brush or a vacuum cleaner. The LRLB meets tightness class C and pressure class 2 requirements according to EN 1507:2006, and has been tested according to the ISO 7235 standard. It is supplied with either an RJFP connection profile or an LS1 connection. For specific materials and sizes not listed, please contact Lindab's sales department. The silencer is also available with an optional accessory: TRA, an uninsulated inspection hatch.
Dimensions and Acoustic Performance
The LRLB silencer is available in various dimensions and offers specific acoustic damping performance across different frequencies. The following table details these specifications.
Diagrams: The product is illustrated with a side view showing its overall form and a front view detailing the internal structure. Dimensions are indicated by labels 'a' (width), 'b' (height), and 'l' (length).
| Width (a) [mm] | Height (b) [mm] | Length (l) [mm] | 63 Hz | 125 Hz | 250 Hz | 500 Hz | 1 kHz | 2 kHz | 4 kHz | 8 kHz |
|---|---|---|---|---|---|---|---|---|---|---|
| 150-1000 | 150 | 300 | 1 | 3 | 7 | 8 | 11 | 11 | 9 | 7 |
| 150-1000 | 150 | 450 | 2 | 3 | 10 | 12 | 16 | 15 | 12 | 9 |
| 150-1000 | 150 | 650 | 3 | 7 | 15 | 19 | 20 | 17 | 16 | 14 |
| 150-1000 | 150 | 950 | 3 | 9 | 21 | 28 | 30 | 28 | 23 | 19 |
| 150-1000 | 150 | 1250 | 4 | 12 | 26 | 35 | 40 | 37 | 29 | 22 |
| 150-1000 | 200 | 300 | 2 | 4 | 5 | 7 | 9 | 10 | 7 | 6 |
| 150-1000 | 200 | 450 | 2 | 4 | 8 | 10 | 14 | 13 | 8 | 8 |
| 150-1000 | 200 | 650 | 4 | 6 | 11 | 13 | 15 | 14 | 12 | 12 |
| 150-1000 | 200 | 950 | 5 | 9 | 16 | 21 | 23 | 20 | 15 | 14 |
| 150-1000 | 200 | 1250 | 6 | 11 | 20 | 28 | 31 | 26 | 17 | 15 |
| 150-1000 | 250 | 650 | 5 | 8 | 10 | 13 | 12 | 11 | 10 | 9 |
| 150-1000 | 250 | 950 | 6 | 10 | 15 | 19 | 18 | 15 | 12 | 11 |
| 150-1000 | 250 | 1250 | 6 | 12 | 19 | 25 | 22 | 18 | 14 | 12 |
| 150-1000 | 300 | 650 | 4 | 8 | 11 | 15 | 12 | 13 | 11 | 10 |
| 150-1000 | 300 | 950 | 5 | 10 | 15 | 19 | 17 | 19 | 15 | 13 |
| 150-1000 | 300 | 1250 | 6 | 13 | 18 | 23 | 21 | 22 | 17 | 15 |
| 150-1000 | 350 | 650 | 4 | 7 | 7 | 11 | 10 | 9 | 8 | 7 |
| 150-1000 | 350 | 950 | 5 | 9 | 10 | 14 | 13 | 11 | 9 | 8 |
| 150-1000 | 350 | 1250 | 5 | 11 | 13 | 18 | 17 | 14 | 10 | 9 |
| 150-1000 | 400 | 650 | 2 | 4 | 6 | 9 | 14 | 12 | 8 | 8 |
| 150-1000 | 400 | 950 | 3 | 5 | 9 | 14 | 20 | 16 | 10 | 9 |
| 150-1000 | 400 | 1250 | 5 | 6 | 12 | 17 | 25 | 24 | 13 | 11 |
Ordering Example
The product is specified using the following format: LRLB [Width (a)] - [Height (b)] - [Length (l)] - [Profile Type (c)] - [Accessory (d)].
Example: LRLB 600 - 200 - 950 - RJFP20 - TRA
Note: Lengths 300 mm and 450 mm are only available in heights 150 mm and 200 mm.
Product Selection Tool
For selecting the optimal silencer for your specific requirements, Lindab offers the advanced acoustic calculation and dimensioning web tool, LindQST. This tool enables optimization of width, height, and length for maximum performance and to meet on-site demands. Visit www.lindQST.com for more information.
Lindab | Quick Selection Tool
