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Truflo® Delta-P Series Plastic Differential Pressure Relay Switch + Gauge

Truflo® Delta-P Series Plastic Differential Pressure Relay Switch + Gauge

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.


  • 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


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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Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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