Fan Guard
Fan Guard
Inline Axial Fans
A variable pitch balde in axial fan blower is used where precise control of static pressure within supply ducts is required. The fan wheel will spin at a constant RPM . The blades follow the control pitch hub. As the hub moves toward the rotor the blades increase their angle of attack and an increase in flow results.
Axial flow ventilators have blades that force air to move along the shaft about which the blades rotate. Axial fans blow air across the axis of the fan, linearly, hence their name. This type of fan is used in a wide variety of applications, ranging from small cooling fans for electronics to the giant fans used in wind tunnels.
Some examples of axial fans are:
Table fan - Basic elements of a typical table fan include the fan blade, base, armature and lead wires, motor, blade guard, motor housing, oscillator gearbox, and oscillator shaft. The oscillator is a mechanism that motions the fan from side to side. The axle comes out on both ends of the motor, one end of the axle is attached to the blade and the other is attached to the oscillator gearbox. The motor case joins to the gearbox to contain the rotor and stator. The oscillator shaft combines to the weighted base and the gearbox. A motor housing covers the oscillator mechanism. The blade guard joins to the motor case for safety.
Electro-mechanical fans - among collectors, are rated according to their condition, size, age, and number of blades. Four-blade designs are the most common. Five-blade or six-blade designs are rare. The materials from which the components are made, such as brass, are important factors in fan desirability.
Ceiling fan with light. Ceiling fan - A fan suspended from the ceiling of a room is a ceiling fan.
In automobiles, a mechanical fan provides engine cooling and prevents the engine from overheating by blowing or sucking air through a coolant-filled radiator. It can be driven with a belt and pulley off the engine's crankshaft or an electric fan switched on/off by a thermostatic switch.
In centrifugal fan, as opposed to axial flow fan, the air is moving perpendicularly to the fan shaft. Often called a "squirrel cage" (due to its similarity in appearance to exercise wheels for pet rodents), the centrifugal fan has a moving component (called an impeller) that consists of a central shaft about which a set of blades, or ribs, are positioned. Centrifugal fans blow air at right angles to the intake of the fan, and spin the air outwards to the outlet (by deflection and centrifugal force). The impeller rotates, causing air to enter the fan near the shaft and move perpendicularly from the shaft to the opening in the scroll-shaped fan casing. A centrifugal fan produces more pressure for a given air volume, and is used where this is desirable such as in leaf blowers, hair driers, air mattress inflators, inflatable structures, and various industrial purposes. They are typically noisier than comparable axial fans.
A mixed flow fan - is an air moving device in between axial flow fan and centrifugal fan. Mixed Flow fans are an excellent choice for return air, supply, or general ventilation applications where low sound is critical. As compared to similarly sized tubular centrifugals and vane axials, a mixed flow fan will be 5-20 dB quieter! In addition, the mixed flow wheel is extremely efficient and will cut down on operating expenses.
For additional information please refer to http://industrialpressureblower.com.
Susanna Terlitskaia
Industrial Process Ventilation Engineer
Industrial Pressure Blower Co.
http://industrialpressureblower.com/blower.html
http://industrialpressureblower.com/fan.html
About the Author
Oleg Chechel
Ventilation Equipment Designer
Canada Blower
http://www.canadablower.com/index.html
http://www.canadablower.com/oem/index.html
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120mm Steel Mesh Fan Filter (Guard), Black, Large Hole $2.95 |
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Chrome Fan Grill Guard for 120mm fans 120 mm 12cm NEW $1.50 |
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Metal Wire 6" / 150mm CPU Fan Grill/Guard f PC Silvery $2.39 |
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140mm Metal Wire Silver Case Fan Grill Finger Guard New $2.39 |
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Lot 4x Finger Guard Nickel Chrome WFG59 5.91X6.78 Global Fans $0.99 |
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LOT 3x LZ28 EBM-PAPST Metal finger guard, 60x60mm Axial Fans or other $0.99 |
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3 Metal Wire 120mm CPU Fan Grill/Guard for PC Silvery $3.99 |
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2x Metal Wire 120mm CPU Fan Grill/Guard for PC Silvery $3.19 |
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5x Metal Wire 120mm CPU Fan Grill/Guard for PC Silvery $6.39 |
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10 Metal Wire 120mm CPU Fan Grill/Guard for PC Silvery $11.19 |
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20 Metal Wire 120mm CPU Fan Grill/Guard for PC Silvery $20.79 |
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1X Metal Wire 80 mm CPU Fan Grill/Guard for PC Silvery $1.59 |
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1X Metal Wire 60 mm CPU Fan Grill/Guard for PC Silvery $1.59 |
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NEW 680W 20/24 pin Dual-Fan ATX PSU SATA Power Supply Guard Grill / Cable $24.95 |
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2X Metal Wire 60 mm CPU Fan Grill/Guard for PC Silvery $2.87 |
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5X Metal Wire 60 mm CPU Fan Grill/Guard for PC Silvery $6.07 |
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10 Metal Wire 60 mm CPU Fan Grill/Guard for PC Silvery $10.87 |
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20 Metal Wire 60 mm CPU Fan Grill/Guard for PC Silvery $20.47 |
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20 Metal Wire 80 mm CPU Fan Grill/Guard for PC Silvery $20.63 |
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10 Metal Wire 80 mm CPU Fan Grill/Guard for PC Silvery $11.03 |
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5x Metal Wire 80 mm CPU Fan Grill/Guard for PC Silvery $6.23 |
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2x Metal Wire 80 mm CPU Fan Grill/Guard for PC Silvery $2.95 |
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Filter Dust guard 120mm Case Fan for Computer PC A $2.67 |
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Masscool FG-2P-60MM 60mm Fan Guard/Grill * 2-Pack $6.06 |
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5 Pcs Silver Tone Axial Fan Grill Protector 12cm Metal Finger Guards $10.33 |
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5 Pcs Silver Tone Axial Fan Grill Protector 12cm Metal Finger Guards $8.28 |
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5 Pcs Silver Tone Metal Finger Guards for 8cm CPU Cooling Fan $5.88 |
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5 Pcs 120mm Axial Cooling Fan Grill Metal Wire Finger Guards $8.25 |
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5 Pcs Silver Tone Axial Fan Grills Protector 8cm Finger Guards $5.85 |
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5 Pcs Silver Tone Axial Fan Grill Protector 12cm Metal Finger Guards $8.28 |
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10 pcs DC Fan Grill Protector Silver Metal Finger Guard Used for 9cm Fan $13.24 |
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30 pcs DC Fan Grill Protector Silver Metal Finger Guard Used for 120mm Fan $52.63 |
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30 pcs DC Fan Grill Protector Silver Metal Finger Guard Used for 5cm Fan $20.31 |
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30 pcs DC Fan Grill Protector Silver Metal Finger Guard Used for 6cm Fan $26.50 |
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50 pcs DC Fan Grill Protector Silver Finger Guard Used for 50mm Fan $31.80 |
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10pcs Chrome Metal Wire 80mm Fan Grill Guard FREE S/H $9.99 |
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Lot4 Case/Box Fan Screws,Coarse Thread,40mm52mm60mm70mm80mm92mm120mm Grill/Guard $1.00 |
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ROTRON fan guard frame w/mesh for 51/4"fan frame $5.00 |
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*NEW* 140MM OKGEAR CHROME STEEL WIRE COMPUTER CASE FAN GUARD GRILL $3.25 |
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Akasa Fan Guard Chrome 60mm Brand New In Stock UK $3.11 |
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120mm Fan Grill Guard Chrome Free Shipping! $3.99 $3.99 |
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Orion Fan 60 mm 25 CFM with fan guard $0.99 |
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Dell Latitude C510/C610 Fan Guard 202TV $3.99 |
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127mm AC DC Fan Wire Guard $2.49 |
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2 pcs DC Fan Grill Protector Silver Finger Guard Used for 120mmx120mm Fan 12cm $4.74 |
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2 pcs DC Fan Grill Protector Silver Finger Guard Used for 40mmx40mm Fan $2.84 |
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2 pcs DC Fan Grill Protector Silver Finger Guard Used for 60mmx60mm Fan $3.32 |
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2 pcs DC Fan Grill Protector Silver Finger Guard Used for 70mmx70mm Fan $3.32 |
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2 pcs DC Fan Grill Protector Silver Finger Guard Used for 80mmx80mm Fan $3.79 |
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2 pcs DC Fan Grill Protector Silver Finger Guard Used for 92mmx92mm Fan 90mm $3.79 |
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8 pcs DC Fan Grill Protector Silver Finger Guard Used for 120mmx120mm Fan 12cm $16.14 |
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8 pcs DC Fan Grill Protector Silver Finger Guard Used for 40mmx40mm Fan $7.59 |
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8 pcs DC Fan Grill Protector Silver Finger Guard Used for 50mmx50mm Fan $7.59 |
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8 pcs DC Fan Grill Protector Silver Finger Guard Used for 60mmx60mm Fan $9.49 |
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8 pcs DC Fan Grill Protector Silver Finger Guard Used for 70mmx70mm Fan $9.49 |
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8 pcs DC Fan Grill Protector Silver Finger Guard Used for 80mmx80mm Fan $11.39 |
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8 pcs DC Fan Grill Protector Silver Finger Guard Used for 92mmx92mm Fan 90mm $11.39 |
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Silver Steel Filter Dust Guard 12cm 120mm PC Case Fan $4.49 |
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PC DC Fan Grill Protector Metal Finger Guard 120mm 12cm Silver Tone $4.29 |
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5 x Axial 40mm Cooling Fan Grill Metal Wire Finger Guards Silver Tone $4.01 |
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12pk Case/Box Fan Screws,Coarse Thread,40mm52mm60mm70mm80mm92mm120mm Grill/Guard $2.50 |
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100pk Case/Box Fan Screw,Coarse Thread,40mm52mm60mm70mm80mm92mm120mm Grill/Guard $18.99 |
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3 Pcs Black Filter Dust Guard 12cm 120mm Case Fan for Computer PC $8.08 |
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Akasa 60mm Chrome Fan Guard $2.84 |
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GARDTEC SC130-W3 WIRE FAN GUARD Lot of 2 $7.99 |
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Aluminum Filter Dust Guard 12cm 120mm for PC Case Fan $3.99 |
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5 Pcs Silver Tone Axial Fan Grill Protector 6cm Finger Guards $4.45 |
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MASSCOOL SL-FD14025 Supper Silent Case fan w/ FAN GUARD $12.19 |
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80mm Case Fan Grill Finger Guard 80 mm Flat Cut Metal With Screws - Quantity 1 $3.39 |
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80mm Case Fan Grill Finger Guard 80 mm Raised Cut Metal With Screws - Quantity 2 $5.34 |
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80mm Case Fan Grill Finger Guard 80 mm Raised Cut Metal With Screws - Quantity 1 $3.39 |
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5 x Axial 90mm Cooling Fan Grill Metal Wire Finger Guards $6.29 |
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5 x Silver Tone Axial Fan Grill Protector 9cm Finger Guards $6.28 |
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Masscool FG-2P-80MM 80mm Fan Guard/Grill - 2-Pack $3.99 |
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3.25" Computer PC Case Fan Dust Guard Grill Protector Cover $7.99 |
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5 Pcs Silver Tone Metal Finger Guards Grills for 4cm Cooling Fan $4.00 |
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80mm 8cm PC Computer Case Fan Dust Guard Grill Protector $5.12 |
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50mm Chrome Fan Guard (finger guard) $1.50 |
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5 Pcs Silver Tone Metal Finger Guards for 9cm Cooling Fan $6.23 |
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Chrome Metal Wire 80mm Fan Grill Guard w/ 4 Case Screws NEW $1.75 |
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Chrome Wire Metal 120mm Fan Grill Guard & Screws FREE S/H $3.99 |
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PC DC Fan Grill Protector Metal Finger Guard 120mm 12cm Silver Tone $4.29 |
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5 x Axial 70mm CPU Cooling Fan Grill Metal Wire Finger Guards $4.89 |
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*NEW* 80MM MODWARE CFG80TU SWIRL DESIGN LASER-CUT CHROME STEEL FAN GUARD GRILL $4.40 |
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80mm AC DC Fan Wire Guard $1.59 |
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92mm AC DC Fan Wire Guard $1.79 |
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120mm AC DC Fan Wire Guard $1.99 |
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Lot of 174 NEW Qualtek Electronics 09325-F/45 Fan Filter Guards Assembly $199.99 |
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lot of 10 Finger Guard kits for 4 1/8" Square axel fans $19.95 |
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Computer PC Black Plastic 12cm 120mm Fan Filter Dust Guard Mesh $5.02 |
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LASER Cut 80mm Fan Grill for Computer Case Mod -- Dragon 8cm finger guard $3.99 |
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5 Pcs Silver Tone Axial Fan Grill Protector 12cm Metal Finger Guards $8.08 |
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New 80mm Steel Crhome Finished Fan Grill-Guard For Case $3.69 |
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New 90mm Steel Crhome Finished Fan Grill-Guard For Case $3.89 |
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New 120mm Steel Crhome Finished Case Fan Grill-Guard $3.97 |
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5 x Silver Tone Axial Fan Grill Protector 9cm Finger Guards $6.65 |
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115mm 4-3/4" fan screen guard grill Silver Chrome $1.07 |
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5 Pcs Silver Tone Axial Fan Wire Grill Protector 4cm Finger Guards $4.19 |
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5 Pcs Silver Tone Axial Fan Grill Protector 6cm Finger Guards $4.95 |
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5 Pcs Silver Tone Axial Fan Grill Protector 6cm Finger Guards $4.43 |
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Tripp Lite SRFANWM Cooling Fan $69.99 Tripp Lite SRFANWM Cooling Fan |
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