Priority Panel


In case of fast-fill CNG systems the use of a storage cascade with multiple storage banks and a priority panel is required.
The priority panel directs the compressed gas flow to a specific bank of the storage cascade, depending on demand and on the type of storage cascade replenishment logic used for the system.
If the storage pressure becomes too low, the priority panel directs gas directly to the vehicle dispensers in order to provide faster filling.

The main advantages of three lines cascade systems versus single line refuelling systems are as following:

  • Fast refuelling also during peak hours
  • Lower compressor wear and tear and associated reduction in maintenance costs thanks to a reduced number of compressor starts/stops
  • Increased usage of available storage volume (60% instead of 20%)