What is the compressed air pressure in the pharmaceutical industry

In the pharmaceutical industry, the pressure of compressed air is a key parameter, which directly affects the normal operation of medical equipment and the treatment effect of patients. Generally speaking, the pressure range of compressed air in the pharmaceutical industry varies depending on the specific use requirements and application scenarios, but is usually between 0.4MPa and 0.8MPa (ie 4bar to 8bar).

Specifically:

• General medical uses: The output air pressure of air compressors for medical and health purposes is usually between 0.7MPa and 0.8MPa (i.e. 7bar to 8bar) to ensure the requirements of medical gas flow and purity.
• Special department requirements:
  • Wards and operating rooms: The pressure of compressed air is generally between 0.4MPa and 0.5MPa (i.e., 4bar to 5bar).
  • Oral Treatment Center: Due to the high instantaneous demand, the pressure of compressed air may be slightly higher, usually between 0.5MPa and 0.8MPa (i.e. 5bar to 8bar).
• Medical Air Pressure Requirements: The rated pressure of medical air is usually 4 bar, but the actual output pressure is allowed between 4 bar and 5 bar. If the output pressure exceeds 5 bar or is less than 3.2 bar, an alarm should be set.
• Instrument air pressure requirements: The rated pressure of the gas terminal is 8 bar, and the output pressure is between 7 bar and 10 bar belongs to the allowable pressure range. If the output pressure exceeds 10bar or is below 6.4bar, an alarm should also be set.

In addition, in addition to pressure requirements, compressed air in the pharmaceutical industry also needs to meet other quality standards, such as:

• Cleanness: Bacteria, oil fume, moisture and odor in the air will have an impact on the health of patients. Therefore, the compressed air must be strictly filtered to ensure that the cleanliness meet medical standards. The total number of bacteria and actinomycetes in the air should be less than 100cfu/m³, and the particle size of the solid particles should be less than or equal to 0.1μm.
• Oil content: The oil content in compressed air is also an important indicator. The Chinese Pharmacopoeia and GMP require that the compressed air oil content is ≤0.1mg/m³, and some of them require that the oil content should be less than 0.01mg/m³ to avoid medical equipment.and the patient has adverse effects.
• Humidity: The humidity of compressed air also needs to be controlled within a certain range. The humidity is usually required to be less than 50% to avoid adverse effects on drug production or medical equipment.
• Temperature: The temperature of medical compressed air should be kept within an appropriate range, generally between 5℃ and 40℃.

In summary, the pressure range of compressed air in the pharmaceutical industry is usually between 0.4MPa and 0.8MPa, but the specific values ​​need to be determined based on the specific usage requirements and application scenarios. At the same time, the quality standards of compressed air must be strictly followed to ensure the normal operation of medical equipment and the treatment effect of patients.