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Air Systems has developed a new heavy duty round multi-blade balancing and control damper that provides industrial air system volume control without the need for inlet and discharge transitions. For optimal volume control with round ductwork in industrial HVAC installations, Air Systems offers a new round multi-blade control damper in both standard and heavy-duty models. … Continued

Variable inlet vane (VIV) dampers modulate the flow/pressure ratio of a blower from the inlet side. These dampers are used when applications require fan volume control (4 to 1 turndown). By controlling the rotation of the air entering the fan, the VIV can reduce fan pressure without impacting the speed of the fan. The variable … Continued