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SRA

SRA
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SRA

Product catalog summary
Specifications:
The document describes the SRA-100/50 sound attenuator, which is a rectangular sound attenuator designed for noise reduction. It features a casing made of galvanized steel and splitters made of mineral wool with a density of 60 kg/m³. The standard flange size is 30 mm, with an option for 20 mm. The splitters are 100 mm thick, and the air passages are 50 mm wide.
Procedures:
The document provides a table for selecting the appropriate sound attenuator based on dimensions (BxH in mm), free area (in square meters), and the number of splitters. It includes configurations both with and without mesh, detailing the free area and number of splitters for various dimensions.
Performance Data:
The document includes performance data for sound attenuation across different frequencies (63 Hz to 8000 Hz) and pressure drop values at various crossing speeds (m/s) for different lengths (600 mm to 2100 mm). For example, at a length of 1200 mm, the attenuation ranges from 4 dB at 63 Hz to 49 dB at 1000 Hz.
Recommendations:
For optimal performance, the selection of the sound attenuator should consider the specific air flow requirements, dimensions, and desired attenuation levels. The document provides a sample selection based on an air flow of 3890 mc/h, with specific dimensions and performance metrics.
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Catalog excerpts

SRA-1

SRA-100/50 PREZZI / PRICES Superficie netta di passaggio aria mq SENZA RETE / WITHOUT MESH - L Lunghezza mm/ L Lenght mm Characteristics: Rectangular sound attenuator. Material: Casing in galvanized steel. Splitter in mineral wool 60 kg/mc Flanges 30 mm (standard) - 20 mm Splitters: 100 mm Airflows: 50 mm. Caratteristiche: Silenziatore ad assorbimento. Materiale: Cassa in acciaio zincato. Isolante in lana minerale da 60 kg/mc Flange da 30 mm (standard) 20 mm Setti da 100 mm Passaggi aria da 50 mm. ESEMPIO SELEZIONE SILENZIATORE / SOUND ATTENUATOR SAMPLE SELECTION mc/h Base / Base Altezza / Height Lunghezza / Length Free area Velocità effettiva / Effective speed Portata aria / Air flow Perdita di carico / Pressure drop Attenuazione / Attenuation

 Open the catalog to page 1
SRA-2

PREZZI / PRICES Superficie netta di passaggio aria mq DISEGNI / DRAWINGS CON RETE / WITH MESH - L Lunghezza mm/ L Lenght mm ATTENUAZIONE PER INSERZIONE / INSERTION LOSS PERDITE DI CARICO / PRESSURE DROP Velocità Attraversamento m/s / Crossing Speed m/s

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.