Northern Industrial Supply Company is a world leader in the manufacture of fans and blowers for industrial and commercial applications. The company offers material handling fans, stainless steel fans, pressure blowers, FRP fans, high-temperature fans, propeller fans, and axial-flow fans. Northern Industrial Fans and Blowers has extensive experience in process and HVAC fan and blower ventilating systems.
Buffalo
Blower air-handling units (AHU) can be used effectively for negative
pressure control at manufacturing facilities. Space Pressure Control is
used to minimize and control the exchange of air between the building
and the outside environment or from one building area to another. This
may be accomplished in three ways:
- Constant air supply with
variable-speed exhaust;
- Variable air supply with
constant-speed exhaust;
- Variable Return-Air.
In a typical axial fan, the effective progress of the air is straight
through the impeller at a constant distance from the axis. The primary
component of blade force on the air is directed axially from inlet to
outlet and thus provides the pressure rise by a process that may be
called direct blade action.