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Kromschroder DG Gas Pressure Switches


DG Switch Series for Gas and Air Pressure







  • Monitoring of gas and air pressures (positive, negative and differential pressures)
  • EC type-tested and certified pursuant to EN 1854 and class “S”
  • DG..T: FM approved and UL listed
  • Certified pursuant to GOST-R and AGA
  • Certified for systems up to SIL 3 and PL e
  • Pressure switch with internal lock and manual reset
  • Suitable for biologically produced methane (can be used on pipes with Zone 2 explosive atmospheres without isolating amplifier)
  • With approved isolating amplifier for Zone 1 and 2 hazardous areas
  • RoHS 2002/95/EC
  • DG..S: special version available for NH3 and O2



Description and Part Numbers


The gas pressure switch DG monitors extremely low pressure differentials and triggers switch-on, switch-off or switch-over operations if a set switching point is reached. The switching point is adjustable via a hand wheel. It monitors positive and negative gas pressures on various industrial gas and air appliances, such as boiler fan monitoring and differential pressure monitoring in firing, ventilation and air-conditioning systems.


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