ISO 9001
SMACNA
Product Code: CEI-SA / SA-R / SA-C / SA-E
Sound Attenuators
كاتمات الصوت
In-duct sound attenuators reducing airborne noise transmission between spaces. Baffled and splitter types in standard and custom lengths. Mineral wool acoustic fill with perforated steel facing.
Frame Material
Product Description
Castle Sound Attenuators reduce noise generated by fans, AHUs and airflow turbulence within HVAC ductwork. Available in rectangular splitter, circular and elbow configurations. Acoustic baffles are filled with non-combustible mineral wool insulation wrapped in abrasion-resistant fabric. Galvanized steel casing with aerodynamic inlet/outlet profiles for minimal pressure drop. Manufactured per SMACNA and ASHRAE acoustic standards.
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Casing Material | Galvanized steel Z-275 — 0.8mm to 1.2mm | mm |
| Splitter Fill | Non-combustible mineral wool — 48-96 kg/m³ density | kg/m³ |
| Facing | Abrasion-resistant perforated galvanized steel + glass tissue | — |
| Rectangular Sizes | Height: 150-2400mm / Width: 150-2400mm | mm |
| Circular Sizes | Ø150 to Ø1600mm | mm |
| Length | 900mm / 1200mm / 1500mm / 1800mm / 2400mm | mm |
| Splitter Thickness | 100mm / 150mm / 200mm / 300mm | mm |
| Insertion Loss | 10-45 dB (frequency dependent) | dB |
| Pressure Drop | 10-80 Pa (depending on velocity and configuration) | Pa |
| Max Velocity | 15 m/s | m/s |
| Fire Rating | Non-combustible per BS 476 Part 4 | — |
| Compliance | SMACNA / ASHRAE / DW144 / BS 8233 | — |
Fields of Application
Tests & Certificates
ISO Certification
International Quality Certifications
International Standards
SMACNA · DW144 · IGC · UL
Duct Test
Rigorous leakage and pressure testing to SMACNA and DW144 standards.
Air Tests
Air velocity and distribution testing.
