Aerzen USA Corp. - Positive Displacement Blowers
 
 
 
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Positive Displacement Blowers

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Principle of Operation: Rotary Lobe Positive Displacement Blowers
Synchronized by precision ground helical timimg gears, two symmetrical rotors rotate in an opposite direction without making contact. The medium to be conveyed is displaced in a positive manner from inlet to discharge via the chambers formed between the rotors and the housing. At the very moment the rotor tip clears the discharge, the volume of gas displaced is compressed by the backflow from the discharge end. The final pressure automatically adjusts itself to the system’s backpressure.

Pulsations Inherent to Rotary Lobe Blowers
The air or gas stream pulsates as a result of its operating principle. Patented in Aerzen blowers, internal pulsation interference channels in conjunction with 3-lobe rotors reduce the pulse in the discharge air stream by as much as 90% or 20 dB at the lobe-passing frequency. This significant attenuation contributes strongly to reducing vibrations in the entire package and lowering the noise emitted by the downstream piping. In addition, a discharge silencer is used as a secondary measure.

The noise level stated by Aerzen are for a complete package, therefore including the contribution by the inlet or exhaust noise and the noise emitted by the accessories.

The standard Aerzen positive displacement blowers (“pd blowers”) are three-lobe blowers (sometimes called "tri-lobe blowers™" ) where the discharge pulsations inherent to Roots® type blowers are all but cancelled at the source by a patented interference system.

Aerzen USA G5 Blower

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Blower Series

Intake volume flow

Sizes

Type GM 3 Lobe Blowers approx. 30 to 65.000 m³/h 22 sizes GM 3 S to GM 1080 L
DELTA BLOWERS approx. 30 to 15.000 m³/h 16 sizes GM 3 S up to GM 240 S
Delta Blower Generation 5 approx. 60 to 3.600 m³/h 11 sizes GM 4 S up to GM 60 S
GQ Series Process Gas Blowers 2000 up to 100.000 m3/h 6 sizes
GR Series Process Gas Blowers 100 up to 50.000 m³/h 12 sizes
GM Series Truck Blowers 600 up to 2.250 m³/h 4 sizes
GM-cz Series Pressure Boosters 60 up to 6.000 m³/h 5 sizes
Vacuum Pumps with Pre-Inlet Cooling 60 up to 45.000 m³/h 13 sizes
Vacuum Boosters Theoretic nominal intake volume flow 180 up to 97.000 m³/h
With Canned Motor: Theoretic nominal intake volume flow 105 up to 15.300 m³/h 		19 sizes
With Canned Motor: 14 sizes
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