Air-main charging systems - compact assistants that make a big difference
DHS 4.0 series electronic air-main charging systems from KAESER not only provide protection for your compressed air treatment components, but also help ensure reliable compressed air quality - even following a complete shutdown of your compressed air supply system. 

With dropping pressure, the flow velocity in the pipework quickly increases and can potentially overwhelm all of the components in the compressed air system. Installation of a KAESER DHS 4.0 air-main charging system guarantees the required minimum pressure and thereby ensures reliable operation, especially when re-starting the system following a shutdown

Thanks to a patented pulse width modulation control concept, each air-main charging system is prepared for every eventuality and, as is KAESER’s way, combines exceptional operational reliability with simple and straightforward operation.

Connection diameters from G ½ to G 3 and DN 40 to DN 400
for systems with one or more treatment lines
Perfect integration thanks to numerous interfaces and configuration options
The benefits

Two operating modes:
Priority: compressed air supply or Priority: compressed air quality. Perfectly adapted to your needs.
A brilliantly simple operating concept:
Easy configuration in 25 languages, immediate recognition of operating state, manual actuation in the event of an emergency: all time-saving features that also increase safety.
Connection to SIGMA AIR MANAGER 4.0: 
DHS 4.0 series air-main charging systems can be connected to the SIGMA AIR MANAGER 4.0 master controller via the SIGMA NETWORK.