Single stage
Gas is compressed in one step using a single impeller.
Maximum airflow2,100 m³/h
Maximum compression475 mbar
Maximum vacuum−350 mbar
How to Select A Blower
Choosing the right side channel blower
Choose a blower that delivers your required airflow at the pressure or vacuum your application needs, with room to operate comfortably within its performance curve.
Use the model’s performance curve to check airflow and pressure together. The maximum airflow figure alone does not tell you whether a blower is suitable for your application.
Reading a performance curve
The example below compares the blower options at an airflow of 75 m³/h.
Allow room within the performance curve. A model that only just meets the duty point may operate close to its design limit. Compare the available models and confirm the operating limits before making your selection.
How the number of stages affects performance
Increasing the number of stages can provide greater pressure or vacuum, with a trade-off in available airflow. These charts illustrate the relationship for the stage options shown.
Compression performance
Vacuum performance
Compare blower stage options
Use these range limits as an overview, then refer to the performance curve for the individual model.
Double stage
Gas is compressed by the first impeller, then compressed again by the second.
Maximum airflow1,150 m³/h
Maximum compression650 mbar
Maximum vacuum−475 mbar
Triple stage
Gas is compressed in sequence through the first, second and third impellers.
Maximum airflow160 m³/h
Maximum compression1,000 mbar
Maximum vacuum−700 mbar
Maximum airflow, compression and vacuum are separate range limits. They do not represent a single operating point or the performance of every model.
Need help selecting a blower?
Have the following details ready when discussing your application:
- Required airflow in m³/h.
- Required compression pressure or vacuum in mbar.
- Available electrical supply and operating frequency.
- Your application and expected running conditions.