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Dimensions for a CALMO
CALMO
Sound attenuator with recessed connection for rectangular ducts
- Very compact rectangular attenuator
- Excellent aerodynamic characteristics
- Vet low pressure drop via baffle staging
- Environmentally friendly acoustic material, approved by independent test institute: ISOVER Cleantec® PLUS
- Washable surface layer ISOVER Cleantec® PLUS
- Available with inspection hatch
- Fire protected version with 50 mm mineral wool also available
- Connection dimensions from 400x300 mm to 2200x2200 mm
- Included in the MagiCAD database
CALMO is, due to its unique design with connection facing the side baffles, is suitable for use both in ducts and in direct connection to the air handling unit.
CALMO - Standard range | ||||
Measurement (mm) | Working range | Attenuation | ||
B | H | L | m³/s | dB(A) |
400-2200 | 300-2200 | 650-2450 | 0-40 | 10-35 |
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Comprehensive detailed product information for the best selection and integration in project design
Installation, Operating, Maintenance and Safety information
Our products and services presented in an easy-to-access manner
Declarations and certificates etc
Wiring diagrams and hydraulic schemes etc
Document | Article | Document type | Date | Download |
---|---|---|---|---|
Attenuator with recessed connection for rectangular ducts (pdf 440.92kB) | CALMO | Technical catalogue | 27/06/2025 | |
Approval 2706/92, Duct insulation (pdf 276.09kB) | ISOVER Cleantec PLUS | Quality | 27/06/2025 | |
Acoustics Overview (eng) (pdf 2.43MB) | CLA-A, CLA-B, SORDO-A, SORDO-B, SORDO-C, SORDO-P, SORDO-PF, CALMO, CADENZA, LARGO, LENTO, MORENDO, FACILE, ALD, CTM, CTK | Brochure | 27/06/2025 |