Storage system design – the basis for efficient compressor operation
A correctly dimensioned storage system is one of the key components of a high-pressure setup. It reduces pressure fluctuations during intermittent air withdrawal and decreases compressor start frequency by providing sufficient storage capacity. The pressure vessels and final separators in high-pressure compressors are designed for a limited number of load cycles. Fewer start-stop cycles significantly extend the service life of these components.
To ensure optimal operation, the compressor should ideally run no more than two to four cycles per hour. BAUER industrial compressors are equipped with cycle counters as standard, which record actual start cycles and support safe, efficient system control.
The size of the storage system depends on:
- Compressor delivery rate (l/min)
- Air consumption of the specific application
- Pressure differential between start and stop (hysteresis)
Simplified formula for sizing a high-pressure storage system (based on 4 load cycles/hour):

- Vk (l/min): Compressor delivery volume in liters per minute
- V (l): Storage volume in liters (water volume)
- Δp (bar): Pressure differential (hysteresis) in bar
We recommend a pressure differential Δp of max. 60 bar for continuous operation. Within this range, stationary high-pressure storage cylinders are typically rated for continuous duty. For higher differentials, the number of allowable filling cycles is limited. Please refer to the documentation for the specific pressure vessel.