Polyline Industries - POLYDUCT Ventilation, Fan Silencers and Underground Accessories

Self Regulating Fan Covers are a simple configuration that bolt to the fan flange and automatically opens or closes with air flow from the fan.

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  POLYDUCT Positive and Negative Pressure Systems are cost effective, modular...
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  4-Way Sections complete with directional valves to control air flow.
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  Polyethylene is an excellent material for Fan Silencers, by using a high tech...
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  Self Regulating Fan Covers are a simple configuration that bolt to the fan...
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  Fire Retardant Anti Static Detonator Boxes have mines department approval in...

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