However, the space cannot be reduced below what is needed to provide proper service access. Smaller fans require less cabinet length to house their assemblies, and they require less space both upstream and downstream of the fans while still ensuring good air distribution and efficient operations. Offering optimum size fan and motor selections that keep fan diameters larger utilizing higher operating efficiency fan motors and eliminating energy robbing bearings and belt drives all contribute to optimum energy efficiency.įor critical applications that must be capable of 100% airflow at all times, multiple fans ensure 100% air flow even when any one fan is inoperable.įans in multiple fan systems will operate at a higher RPM than on large single fan in an identical application, resulting in reduced sound levels in the hard to attenuate 1st and 2nd octave bands. Most models are available in single-wide or. With backward inclined, backward curved, backward inclined airfoil, radial and forward curved impeller types, centrifugal fans offer the flexibility to match the performance and application at the highest efficiency. Our spring isolators are designed with seismic restraints as a standard feature. Centrifugal fans are designed for a wide range of air volumes and pressures. AF fan wheels, including blower blades, fan wheel flange and backplate, are also made of high-strength steel as standard. Aerodynamic fan wheel features include non-overloading fan horsepower characteristics and high efficiency.
#Airfoil fan full
Unique in the industry, our full range of fans are licensed to bear both the AMCA Standard 210 seal for air performance and the AMCA Standard 300 seal for sound performance. Airfoil FANS are available in the following sizes, ventilator wheel designs, and air flow & pressure ranges. These fans provide very stable operation due to a steeply rising pressure curve and are available to meet AMCA Class II or. The large use of AC Plenum Fans with direct driven motor (Arr.4) dominates the actual HVAC market, thanks to its. Our OptiFlow fans feature a fully welded, aluminum airfoil blade design for high operating efficiency and quiet operations, with the characteristic non-overloading horsepower curve. All fans, whether in single or multiple fan configurations, are mounted on spring isolators with seismic restraints, and are available to satisfy the most stringent seismic requirements of the International Building Code. Partial Width Airfoil Fans NPA PW Series.
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