Rectangular Silencer with Circular Connection. BDER-70, FläktGroup

BDER-70 is a rectangular silencer with circular connections. Suitable as a universal silencer for ventilation systems and in connection with adjustment dampers, especially when you need small silencers with good damping. Has a fixed frame. The inner part of the silencer is designed for optimal damping ability. If the silencer is used in conjunction with an apparatus that measures the airflow, the protective distance for a reliable measurement of the airflow must be determined on a case-by-case basis. Compression of fibers from the cushioning material prevented. Consists of a galvanized steel casing, absorbent material: coated glass wool sheet. Density class D (EN 12237). Protective distance for EI30 at 2.5 kW should be considered during installation.