What is the maximum pressure in megapascals for the air compressor?

There is no fixed maximum pressure for air compressors.

“The maximum pressure of an air compressor cannot be expressed as a fixed value. The discharge pressure of an air compressor depends on its design, number of stages, intended application, and safety considerations. In typical compressed‑air systems, the primary concern is whether the discharge pressure meets the requirements of the end‑use equipment, rather than striving for the highest possible pressure.”

Common pressure range

• Conventional‑power air compressor:It is widely used in pneumatic tools, sandblasting, painting, packaging, and general production lines, with typical exhaust pressures ranging from approximately 0.7 to 1.3 MPa.
• Medium- and high-pressure air compressors:It is used in applications such as specialized processes, testing, blow molding, and valve testing, where pressures can reach several megapascals.
• High-pressure or dedicated compressor:It is used for breathing‑air filling, gas boosting, research, and specialized industrial systems, capable of achieving higher pressures, but requires custom design and safety‑related configurations.

Conversion between megapascals and common units

Common units used in engineering include megapascals, bars, and kilograms-force per square centimeter. Typically,1 megapascal equals 10 bars., which is also approximately 10 kgf/cm². When selecting equipment, be sure to verify the units indicated on the nameplate to avoid misinterpreting different units as the same value.

How to determine the required pressure in megapascals?

• First, confirm the minimum operating pressure and pressure fluctuation range of the gas‑using equipment.
• Consider the pressure losses caused by piping, filters, dryers, and fittings.
• Allow for a reasonable margin, but avoid arbitrarily selecting excessively high pressure.
• The higher the pressure, the more stringent the requirements for piping, valves, gas storage tanks, and safety accessories.

Safety and Selection Recommendations

When determining the maximum pressure of an air compressor, refer to the equipment nameplate, technical documentation, and the set‑point range of the safety valve. Operating above the rated pressure can lead to risks such as leaks, ruptures, and shutdowns. If process requirements demand higher pressures, select a receiver tank, piping, and safety‑protection devices rated for the corresponding pressure class, and ensure proper installation and maintenance in accordance with applicable standards.