#Airfoil fan full#

The centrifugal airfoil fan wheel as set forth in claim 2, wherein said back plate and said front plate include a plurality of equally spaced cutouts.Д¤. The centrifugal airfoil fan wheel as set forth in claim 1, wherein said back plate and said front plate each have a plurality of cutouts spaced between each blade.ДЈ. (d) a plurality of stiffener rings encircling and secured to each blade at the outermost portion of said blades within said slots, said back plate, said front plate, and said center plate each having a central concentric opening and said center plate having a plurality of equally spaced cutouts therein, said stiffeners positioned in a plane transverse to an axis passing through said central concentric opening of said back plate, front plate and center plate.Дў. (c) a circular center plate spaced intermediate and parallel to said back plate and said front plate and interconnecting each blade along an intermediate portion thereof such that said blades butt against said center plate from both sides and

#Airfoil fan full#

(b) a spaced back plate and front plate interconnecting each blade along the full extent of the lateral edges of each blade (a) a plurality of radially extending airfoil shaped blades, each blade having a tail and a nose, said tail having a slot formed within said tail longitudinal said blades A centrifugal airfoil fan wheel comprising: With a high quality rust preventative before shipment. All fan shafts are turned, ground and polished and are coated QUALITY COMPONENTS: All belt driven models have self-aligning,Д¬ast iron, grease lubricated, pillow block bearings sized for a minimum 150,000 On belt driven models, is easily accomplished without disturbing the inlet and/orДischarge connections. Allows for field conversion without replacing the blower.Д®ASE OF MAINTENANCE: Replacing a wheel or motor, or shaft and bearings ROTATABLE HOUSINGS: Most models have housings that can be rotated Fan bases are 7 and 10 gauge steel with internal bracing RUGGED CONSTRUCTION: Housings are heavy gauge steel and are continuously The exact performance you need with a direct driven blower. Multiple widths from 50% to 100%, in 5% increments and two wheel types, to deliver MULTIPLE WHEEL SELECTIONS: Each size and class is available in Horsepower consumption and a reduction in sound levels of 2-6 dBA. The static efficiency of an airfoil wheel versusДЄ backward inclined wheel can easily exceed 10%. INCREASED EFFICIENCY: Airfoil wheels provide the highest efficiency For AMCA Types A or B spark resistance, see Model HDBI Backward Inclined Blowers.Д«enefits of Model 'HDAF' Airfoil Blowers are:

All models available with AMCA Type C, spark resistant construction.

Arrangement 10 units come standard with weather covers.

Arrangement 9 and 9CB units come standard with belt guards.

Arrangement 8 units come standard with shaft/coupling guard.Fan shaft on belt driven models is turned, ground and polished and receives a high quality rust preventative coating prior to shipment.Belt driven models include heavy-duty, grease lubricated, self-aligning, cast iron, pillow block bearings selected for optimal performance.All fans receive a mechanical run test to assure proper balance and alignment before shipping.Inlet side support assures a minimal vibration housing.Removable inlet & drive side plates allow for removal of blower wheel or motor, or shaft and bearings on belt driven models, without disconnecting inlet or discharge connections.Blower housings can be rotated in 45В° increments, on most sizes, to provide increased configuration flexibility in the field.Heavy gauge steel bases, with internal bracing, maximize rigidity and assure long equipment life.Continuous welded housings, instead of lock seams, eliminate air leakage.Airfoil blade wheel is fabricated of high-strength steel to assure long lasting, efficient operation.All models available with housing and wheel widths from 50% to 100%, in 5% increments and two wheel types, to deliver the performance you need with a direct driven blower.