The pressure range of compressed air varies depending on the application scenario and equipment requirements, and is generally 0.2~1.6MPa(2~16bar) between. The following is the specific pressure analysis in different scenarios:
1. Conventional Industrial Applications
- universal pressure range about 0.7MPa(7bar)
- typical use: Drive cylinder, pneumatic tools (such as wrenches, grinders), automation equipment.
- Description: This pressure is suitable for most pneumatic equipment, balancing efficiency and energy consumption.
2. special scene pressure demand
- low Voltage Applications
- pressure range:0.2~0.4MPa(2~4bar)
- typical Scene glass manufacturing (blowing, etching), laboratory precision instrument control.
- Description: Avoid high-pressure impact and ensure process accuracy.
- Medium and high voltage applications
- pressure range: 1.0 ~ 10MPa(10 ~ 100bar)
- typical Scene:
- chemical synthesis such as high pressure polyethylene production (15 ~ 32MPa).
- oil and gas exploitation: Oil well fracturing (15MPa), natural gas transmission.
- Description: Multi-stage compression is required to reduce the temperature to reduce energy consumption.
- Ultra-high pressure applications
- pressure range: ≥ 100MPa(1000bar)
- typical Scene water knife cutting, ultra high pressure sterilization.
- Description: Requires special design, high cost and complex maintenance.
3. industry segmentation pressure demand
| Industry | pressure range | critical Uses |
|---|
| spraying industry | 0.35 ~ 0.6MPa | paint atomization and spraying |
| food & Beverage | 0.6 ~ 0.8MPa | automated production line control, packaging |
| medical | 0.7 ~ 0.8MPa | operating room equipment drive, respiratory assistance |
| electricity | 0.6 ~ 0.8MPa | instrument control, pneumatic valve |
| mining | 0.8 ~ 1.2MPa | rock drill, drilling rig power |
4. Pressure Selection Key Considerations
- equipment Matching: It needs to match the rated pressure of pneumatic tools to prevent overload or insufficient efficiency.
- Security: high pressure may cause pipeline burst, need to install pressure reducing valve and safety valve.
- Economy for every 1bar increase in pressure, energy consumption increases by 6% ~ 8%, and efficiency and cost need to be balanced.
- Process requirements: If chemical synthesis requires a specific pressure to promote the reaction, precise control is required.
Summary
the compressed air pressure should be selected according to the specific process and equipment, and it is recommended to control the general scenario. 0.7 ~ 1.0MPa, special needs can be adjusted 0.2 ~ 1.6MPa or higher. Reasonable setting pressure can not only ensure the stability of production, but also reduce energy consumption and maintenance costs.
