Pressure Regulating Station 684NGA (acetylene)

Pressure regulating station for the central gas supply up to 353 scfh, automatic changeover

  • compact design (e.g. suitable for cylinder cabinets)
  • minimizes the risk of accidents and increases the work space
  • ensures continuous gas supply and control of a pipeline
  • completely mounted and tested
  • option: switch- and control unit WITT-SWITCH
  • conforms to DIN EN ISO 14114 and acetylene regulations (TRAC)

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WITT Pressure regulating station with automatic changeover for central gas supplies. Every pressure regulating station 100% tested.


  • pressure regulating station completely mounted and tested
  • quick and easy wall mounting
  • compact design (e.g. suitable for cylinder cabinets)
  • pressure regulating station according to EN ISO 14114
  • pressure regulator according to EN ISO 7291
  • reduces the risk of accidents and creates more working space
  • automatic changeover using solenoid valves in the outlet, controlled by WITT-SWITCH (optional)

Operation / Usage:

The pressure regulating station automatically ensures continuous gas supply and control of a pipeline, which is connected with pipeline outlets and reduces the risk of accidents. Supplying from single cylinders is no longer necessary.


  • 2x1 pressure regulating station 684NGA automatically changeable

consisting of:
2x automatic quick acting shut-off devices HDS17 according to EN ISO 15615
2x pressure regulators and gauge with contacts
2x solenoid valves 230 V Ex
2x check valves
1x safety device 85-10 according to DIN EN ISO 5175 against back flow and flashback
1x ball valve in the outlet DN8; G 3/8 F

  • completely mounted and tested on stainless steel plate
  • for connection with WITT control unit (WITT-SWITCH)


  • flexible hose standards (BAM) for connection of pressure regulating station with gas supply (cylinder, gas, cylinder manifolds, bundles, ...), adaptor suitable for bundle connections
  • without automatic quick acting shut-off device HDS17 manifold for connection of cylinder bundles with pressure regulating station
  • switch- and control unit WITT-SWITCH
  • information board with concise instructions
  • instruction plate according to the gas

Company certified to ISO 9001


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