SMR Duct Silencer
SMR Duct Silencer
Silencers are straight round sound absorbers used in ventilation systems to reduce noise transmission through ducts. They are installed between the noise source and the protected room.
Product Description
Key Features & Benefits
Technical Specifications
Diameter Range
80 mm to 900 mm
Insulation Thickness
50 mm (SMR-50) or 100 mm (SMR-100 / SMRB).
Standard Lengths
300, 500, 600, 900, 1000, 1200, 1500 mm.
Max. Air Velocity
12 m/s
Max. Pressure Difference
1500 Pa
Temperature Range
-20°C to +70°C
Model Variants
| Model | Insulation | Feature |
|---|---|---|
SMR-50 |
50 mm thickness |
Standard attenuation for most applications |
SMR-100 |
100 mm thickness |
Higher acoustic performance for critical areas |
SMRB |
100 mm + Central Baffle |
Maximum noise reduction with internal absorptive plate |
Installation & Use
Connection Method
For Ø ≤315mm: Fixed reducer. For Ø >315mm: NSL clutch. Both connect to SPIRO ducts.
Optimal Placement
Install between the noise source (fan/AHU) and the protected room/space.
Handling Care
Protect from moisture and physical damage. Do not compress the insulation.
Airflow Direction
Can be installed in any orientation. No directional restriction.
Use Cases
- Hospital Wards & ORs
- Hotel Guest Rooms
- University Lecture Halls
- Office Meeting Rooms
- High-End Residential
Product brochure
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