**2.2kW Roots blower detailed explanation (selection, parameters, application and maintenance)**
The 2.2kW Roots blower belongs to the * * low-power model * *, suitable for small fish pond oxygenation, laboratory gas supply, small sewage treatment and other scenarios. The following are its key parameters, selection guide, price reference, and maintenance points.
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**1、 Core parameters of 2.2kW Roots blower**
|* * Parameter * * | * * Typical Value Range * * | * * Explanation * *|
|------------------|---------------------|----------------------------|
|* * Airflow * * | 0.8~2.5 m3/min | Depending on pressure requirements|
|* * Pressure range * * | 9.8~58.8 kPa | Low pressure (9.8 kPa) air volume|
|* * Speed * * | 1450~2900 rpm | Low speed is quieter and has a longer lifespan|
|* * Inlet and outlet diameter * * | DN25~DN40 (1-1.5 inches) | Need to match pipeline size|
|* * Noise * * | 65~75 dB (without muffler) | Adding a muffler can reduce it to below 55 dB|
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**2、 Applicable scenarios and selection suggestions**
**1. Fish pond oxygenation (recommended)**
-Applicable fish pond size: 0.5~2 acres (water depth of 1~1.5 meters).
-Aeration configuration:
-* * nanotubes * *: 0.03~0.05 m3/min per meter, can be matched with 20~50 meters.
-Aeration disk: A single disk requires 0.5~1 m3/min and can be equipped with 1-2.
**2. Small scale sewage treatment**
-Suitable for * * biological contact oxidation tank, SBR process * *, with an air volume requirement of 0.5~2 m3/min.
-Corrosive environments require the selection of epoxy coated shells or stainless steel materials.
**3. Laboratory/Pneumatic Conveying**
-Low pressure gas source: such as oxygen supply for fermentation tanks (pressure 9.8~19.6 kPa).
-* * Powder conveying * *: requires high pressure (39.2~58.8 kPa), and the corresponding air volume is reduced to 0.8~1.5 m3/min.
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**3、 2.2kW Roots blower price reference (2024)**
|* * Brand/Type * * | * * Price (RMB) * * | * * Features * *|
|------------------|--------------|----------------------------|
|* * Domestic economical * * | 2500~4000 | Cast iron shell, suitable for clean air at room temperature|
|* * Domestic anti-corrosion type * * | 3500~5500 | Epoxy spray/stainless steel parts, corrosion-resistant|
|Imported brand * * | 8000~15000 | For example, (Taiko) has a longer lifespan|
**Note * *:
-* * Representative domestic brands * *: Shandong.
-* * Price influencing factors * *: Material, transmission mode (direct/belt), and whether a muffler is included.
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**4、 Selection precautions**
1. * * Confirm pressure requirements * *:
-Fish pond oxygenation: 9.8~19.6 kPa (preferred quantity model).
-Pneumatic conveying: 39.2~58.8 kPa (sacrificing some air volume).
2. * * Transmission mode selection * *:
-* * Direct connection * *: Compact structure, suitable for fixed speed scenarios.
-Belt drive: Adjustable speed, easy to maintain (tension needs to be checked regularly).
3. * * Noise Control * *:
-Installing a muffler (priced at+300~1000 yuan) can reduce noise by 10-15 dB.
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**5、 Maintenance and common troubleshooting**
**1. Daily maintenance**
-* * Weekly inspection * *: Belt tension (if applicable), abnormal noise, oil level (gear oil).
-* * Monthly cleaning * *: intake filter (to prevent blockage from affecting air flow).
-Replace gear oil (ISO VG68 or VG220) annually.
**2. Common troubleshooting solutions**
|* * Fault phenomenon * * | * * Possible causes * * | * * Solution * *|
|------------------|---------------------|--------------------------|
|* * Decreased air volume * * | Belt slippage/clogged filter element | Adjust belt or replace filter element|
|* * Abnormal noise * * | Bearing damage/impeller friction | Replace bearings or adjust impeller clearance|
|Motor overheating | Voltage instability/overload operation | Check power supply voltage to reduce load|
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**6、 2.2kW vs Other Power Comparisons**
|* * Power * * | * Air volume (m3/min) * * | * * Applicable scenarios * * | * * Price (yuan) * *|
|---------|------------------|----------------------|-------------|
|* * 1.5kW * * | 0.5~1.5 | Laboratory/Fish Pond | 2000~3500|
|* * 2.2kW * * | * * 0.8~2.5 * * | * 1-2 acres of fish pond/small sewage * * | * * 2500~5500 * *|
|* * 3kW * * | 1.5~4 | 2~3 acres of fish pond | 4000~8000|
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**Summary**
-2.2kW Roots blower is suitable for oxygenation of 1-2 acres of fish ponds, small-scale sewage treatment, or low-pressure gas sources.
-* * Selection key * *: Choose air volume according to pressure requirements, prioritize anti-corrosion models (essential for aquaculture).
-* * Maintenance focus * *: Regularly clean the filter element and check the belt/gear oil, which can extend the service life to more than 5 years.
If you need specific model recommendations, please provide * * usage scenarios (such as fish pond size/water depth/medium) * *, and I can accurately match them for you!
