How to Choose the Pipeline for Conveying Compressed Air With An Air Compressor? - Chengdu ORMD Mechanical Equipment Co.,Ltd

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How to Choose the Pipeline for Conveying Compressed Air With An Air Compressor?

Time:2025-08-06 17:12:58

The selection of air pipelines is a complex engineering decision-making process involving multiple disciplines and factors, which requires comprehensive consideration of safety, economy, reliability, environmental protection, and specific operating conditions.

Clarify the Design Foundation:

1 Gas transmission volume.

2 Gas source pressure and gas composition.

3 Pressure requirements for the starting point, ending point, and various distribution points of gas transmission.

4 Pipeline length, routing direction, topography, geological conditions.

5 Environmental temperature range.

6 Design lifespan.

7 Applicable regulations and standards.

Common Materials And Applicable Scenarios:

The material of compressed air pipelines should meet the requirements of pressure resistance, corrosion resistance (to avoid pipeline corrosion and air pollution), low resistance, etc.

1. Seamless steel pipe (such as 20 # steel):

Advantages: High pressure resistance (suitable for high-pressure systems, such as above 1.6MPa), good strength, and moderate cost.

Disadvantages: Easy to rust, requiring regular rust removal and corrosion prevention (inner wall rust may contaminate compressed air and affect the service life of pneumatic equipment), installation requires welding (complex construction).

Applicable: High pressure, high flow systems, or cost sensitive and regularly maintained scenarios.

2 Stainless steel pipes (such as 304, 316):

Advantages: Corrosion resistance (especially suitable for humid environments or industries with high air quality requirements such as food and medicine), long lifespan, smooth inner walls, and low resistance.

Disadvantages: High cost and high welding requirements (requiring argon arc welding).

Applicable: Clean industries (food, medicine, electronics), humid environments, or scenarios that require high air cleanliness.

3 Aluminum alloy tubes (specialized compressed air aluminum tubes):

Advantages: Lightweight (easy to install), corrosion-resistant, smooth inner wall (low pressure loss), modular connection (no need for welding, using quick plugs or flanges), easy maintenance.

Disadvantages: Medium pressure resistance (usually suitable for 1.0-1.6MPa), higher cost than steel pipes and lower than stainless steel.

Applicable: Medium and low voltage systems (commonly used in most factories), scenarios that require quick installation or frequent modification of pipelines.

4 Plastic pipes (such as UPVC, PPR):

Advantages: low cost, corrosion resistance, light weight.

Disadvantages: Low pressure resistance (usually ≤ 0.6MPa), easy deformation at high temperatures, and the possibility of debris pollution in the air after aging, with poor safety (prone to rupture).

Applicable: Temporary pipelines for extremely low pressure, non critical equipment, not recommended for use in main systems.

If you don't know how to choose a pipeline, please contact us and we can provide you with the most suitable advice.