DHS Air Charging Valve


Removal of moisture, particulates, and hydrocarbons from the compressed air system is vital in order to protect pneumatic equipment, minimize downtime, and reduce scrap and inferior products. The DHS helps ensure that dryers and filters perform to specification. This electronically controlled intermediate control acts on a pressure signal to prevent high-velocity conditions that will occur when system pressure is low. This maximizes contact time in air treatment components and makes them more effective. It also increases the bead and filter life of desiccant dryers by reducing dusting in the desiccant bed.


DHS units have high visibility LED indicators to communicate status at a glance. They can also be wired to dryers and drains so that in case these fail or are shut down, the DHS closes to prevent contamination from getting downstream. Users interested in remote monitoring/control can connect the DHS to plant monitoring systems or Kaeser Sigma Air Manager 4.0 if present.


DHS models are available in eight sizes from 1-in. ball to 8-in. butterfly valves to accommodate nearly any system.


  • Connection diameters from 1 NPT to 2 in. NPT and 2 in. flange to 8 in. flange
  • For systems with one or more treatment lines
  • Perfect integration thanks to various interfaces, configuration options, and retrofit kits
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