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Selecting the correct generator silencer for your application is not a simple bolt on application, each diesel generator silencer is specifically designed to accommodate a applications specific variables, such as maximum / minimum back pressure of generator motors, required DB levels and airflow. Flowex can manufacture a number of standard silncers designs for the more common engine types, but we pride ourselves on the ability to develop silencers for each specific application.

This pressure drop must be carefully and precisely calculated to ensure the duct air flow is smooth and in the same time the sound is attenuated. The attenuators have many design parameters such as the number of splitters in the duct, the thickness of the splitters, the air gap between them, the aperture height and width, the attenuator duct length, type and density of acoustic filling used in the splitters, perforation configuration and air flow rate. When air flows in the ducts it generates noise which could also be considerable if the air flow speed is high. Attenuators are acoustically sized using insertion loss (IL) measured in dB across the octave band frequencies. Aerodynamically it is sized in terms of pressure drop at certain air way velocity. Typically this should not exceed 100 Pa for most of the systems.

Flowex of course can also supply a full range of additional accessories for your exhaust system from bellows and flanges to mounting brackets and rain caps everything you could possibly need to a complete exhaust system.