Delta-P Series Plastic Differential Pressure Relay Switch + Gauge

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  • All Plastic Design Glass Filled Ryton
  • Corrosion Resistant
  • NEMA 4X Rugged Enclosure
  • Liquid Crystal Display
  • Pressure Range 0-225 PSI
  • Easy to Program Relay Set-Point
  • PSI or Bar
  • Small Footprint -Compact-Only 2″ Diameter
  • Easy to Install
  • Eprom Memory -Does Not Required Reprogramming if Power Lost
  • Low Power Detection Feature
  • Actual Pressure Difference Displayed on Screen
  • Manual Operation
  • Programmable Time Intervals between Change-Outs

Product Description

Basket Strainer + Bag Filter Notification

Truflo Delta-P Series offers industry’s first all-plastic corrosion resistant differential pressure gauge and relay switch. The Delta-P measures the differential pressure between the upstream port or (High) and downstream port (Low) of the filter/strainer element. The pressure difference in turn acts on a piston/magnet assembly within the Truflo device activating the Programmable Latching Relay Switch which can be used F alarm notification, pump or valve shut-off.


Dry Relay Contact 0.5AMP at 24VDC (N/O) Output
Body Diameter 2″ 50mm
Operating Temperature -20-60°C (4-140°F)
Supply Power 24VDC
Accuracy ± 0.5%
Maximum Inlet Pressure 225PSI (15 bar)
Enclosure NEMA 4X Ryton PPS

Delta-P Series Data Sheet

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