The rectangular silencer Vents SR 400x200 is used to absorb noise that occurs during the operation of ventilation equipment and spreads through the air ducts of ventilation systems with a cross-section of 400x200 mm. Silencer length 950 mm. Significantly reduces the level of aerodynamic noise in the air duct.
The silencer body and plate shells are made of galvanized steel. The plates are filled with non-flammable sound-absorbing material with a protective coating that prevents fibers from blowing out.
Installation
Installation of the silencer is carried out using a flange connection. When assembling, it is necessary to take into account the direction of air movement (must correspond to the arrow on the silencer). To achieve maximum noise absorption efficiency, it is recommended to provide a straight section in front of the silencer with a length of at least 1 m.
| Noise level reduction, dB (octave frequency bands, Hz) | ||||||||
| 63 Hz | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz | 8000 Hz | |
| CP 400x200 | 3 | 7 | 10 | 23 | 27 | 30 | 25 | < td style='padding: 10px,'>22
Overall dimensions
| Dimensions | B | B1 | B2 | H | H1 | H2 | L |
| mm | 400 | 420 | 440 | 200 | 220 | 240 | 950 |
Diagram of pressure drop versus air flow
