Sound attenuator PZC. Cylindrical sound attenuators, type PZC and PZC-J, are intended for use in air conditioning and ventilation systems.
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They are convenient for installation to suction or discharge sides of axial fans, to suction side of radial fans, as well as to circular ducts.
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The outer casing is made out of galvanized steel sheet, filled with sound absorbing material.
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Inner duct of the attenuator is made out of perforated galvanized steel sheet, which protects the infill from erosion.
Standard types:
PZC – attenuator without sound absorbing pod
PZC-J – attenuator with centrally positioned sound absorbing pod
In order to improve aerodynamic characteristics, it is advisable to mount the coned end to the flow exposed side of the pod, what has to be specially indicated on order. Cross-section flow area of the PZC-J attenuator is about 40% smaller than that of the PZC type attenuator.
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