Working Principle / General Information:
 
 » VIV Dampers are designed with mechanical principle of adjustment.
 » Inlet guide vanes are synchronously adjustable in the same angular position by a connecting element.
 » Adjustment can be made either automatically via an adjusting element from pulse generator by hand.

Special Features:
 
 » Energy Savings with fans utilizing variable inlet vanes.
 » VIV Dampers are often used for capacity modulation. They give accurate modulation and power savings over other styles of dampers at reduced air flow.
 » When an inlet vane is partially closed, each blade directs the air into the wheel in the direction of rotation and so the air is prespun. This brings about a reduction in the Capacity, Static Pressure and BHP. The amount of BHP savings at reduced capacity is determined by the type of system and type of fan-vane combination.
 » For every inlet vane position there is different Capacity V/s Static curve and Capacity V/s Brake Horsepower (BHP) curve generated by the fan.
 » VIV Dampers are designed with mechanical principle of adjustment.
 » Inlet Guide vanes are Sychronously adjustable in the same angular postion by a connecting element.
 » Adjustment can be made either automatically via an adjusting element from pulse generator or by hand.