The models and air volume parameters of Roots high-pressure fans vary depending on the manufacturer and design. The following are some common models and their typical air volume ranges (for reference only, specific manufacturer data shall prevail):
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**1、 Typical models and air volume range**
1. * * Small Roots blower (low/medium pressure)**
-* * Model Example * *: CSR50-65
-Wind volume range: 0.5-3 m3/min
-Pressure range: 9.8-49 kPa
2. Medium sized Roots blower**
-* * Model Example * *: CSR100-150
-* * Airflow range * *: 5-20 m3/min
-Pressure range: 49-78.4 kPa
3. * * Large Roots blower (high pressure)**
-* * Model Example * *: CSR200-300
-Wind volume range: 20-100 m3/min
-Pressure range: 78.4-98 kPa (some models can reach up to 200 kPa)
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**2、 Key parameter description**
1. * * Airflow (Q)**
-Unit: m3/min or m3/h
-The intake air volume is usually marked at standard conditions (20 ° C, 101.3 kPa).
-Example: The air volume of model RT-80 is 8 m3/min (480 m3/h).
2. * * Pressure (P)**
-Unit: kPa, MPa, or mmAq (millimeter water column).
-The actual air volume of Roots blower will slightly decrease with the increase of back pressure (refer to the performance curve).
3. * * Power (N)**
-Unit: kW， It is positively correlated with air volume and pressure.
-Example: A model with an air volume of 10 m3/min and a pressure of 58.8 kPa has a power of approximately 15 kW.
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**3、 Selection precautions**
1. * * Matching requirements**
-Select the air volume and pressure based on actual working conditions (such as sewage treatment, pneumatic conveying, etc.), with a margin of 10-20.
2. * * Brand Differences**
-Different manufacturers have different model names (such as "CSR" for Changsheng), and specific samples need to be consulted.
3. * * Performance curve**
-The air volume is inversely proportional to the pressure, and it is necessary to confirm whether the working point is in the zone based on the performance curve chart.
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**4、 Common application scenarios**
-Low pressure small air volume: aquaculture, small-scale aeration.
-Medium high pressure and large air volume: sewage treatment, powder transportation, vacuum packaging.
It is recommended to directly provide the supplier with the operating conditions requirements (such as inlet temperature, medium, pressure requirements) to obtain accurate models and parameter tables.
