Series D Differential Pressure Indicator


Provides visual warning signal of increasing pressure drop across pressure filter assembly indicating:

  • contaminated filter element
  • low fluid temperature
  • high fluid viscosity
  • impending opening of filter bypass valve


All “D” Series indicators have a red alert sleeve vivible from a full 360°. The DHE and DCE are also equipped with a switch and electrical connection that can be used to actuate a remote warning or even activate a complete system shutdown. Mounted in relation to the high pressure filter, the “D” Series indicators require no maintenance or calibration, and they resist vibrations and shocks.


  • Standard Settings:
    10 PSID (0.7 BAR)
    15 PSID (1.0 BAR)
    20 PSID (1.4 BAR)
    25 PSID (1.7 BAR)
    30 PSID (2.0 BAR)
    35 PSID (2.4 BAR)
    40 PSID (2.8 BAR)
  • Operating Temperature: To 5000 PSI (345 BAR)
  • Operating Temperature: -40°F (-40°C) to 200°F (93°C) continuous
  • Housing: Aluminum
  • Sight Dome: Transparent, high impact polycarbonate
  • Electrical (DHE & DCE only): 125/250 VAC–28 VDC, 3 amp maxiumum inductive and restrictive current, normally open