Ventilation Fundamentals - Solutions for Air

axial to the shaft on which the propeller is mounted. The propeller is housed in a cylindrical tube or duct. This design enables duct fans to operate at higher static pressures than propeller fans. Commonly used in spray booth and other ducted exhaust systems. As SP is increased, HP increases and CFM decreases. Terms & Tech Data HVAC Terminology

  Tubes, Fundamentals, Ventilation, Fans, Axial, Ventilation fundamentals