The selection of an air compressor is primarily based on the working pressure and flow rate of the pneumatic system.
The working pressure of the air source should be approximately 20% higher than the maximum working pressure of the pneumatic system to account for friction losses and local losses in the air supply pipeline. If lower working pressures are required in certain parts of the system, pressure reducing valves can be used. Air compressors are available in rated discharge pressures of low (0.7~1.0MPa), medium (1.0~10MPa), high (10~100MPa), and ultra-high (above 100MPa), which can be selected according to actual needs. Common operating pressures are generally 0.7-1.25 MPa.
