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  • Usually ships in 6-8 weeks



  • Operates up to 360 strokes-per-minute
    • 1 spm increments adjustments
  • Multi-function digital controller
  • Removable tubing insert
  • High compression ratio
  • 2-year warranty for entire pump
  • 6.7 GPH (25.2 L/h)
  • 290 PSI (20 bar) max pressure


The Walchem EWN Series Metering Pump offers superior high speed dosing capability with more standard features. The flexibility of the Walchem EWN pump enables it be integrated into chemical feed applications using a universal-voltage, digital controller with an expanded set of control features. High valve performance and advanced solenoid engineering combine to make a precise pump for demanding applications.

Two controller options provide various features, outputs and flexible pump control including scalable analog control, digital input with multiply and divide capability, batch control, external stop, AUX and Interlock inputs, analog and alarm outputs as well as simple speed & stoke length control. Display of can be adjusted between flow rate units, % speed or SPM for easy-to-read output and enables quick adjustment. The controller is universal voltage so it can be used anywhere in the world.