Walchem and IWAKI America Inc. have released the new EWN-Y Series of electromagnetic metering pumps with an Electromagnetic Flow Sensor (EFS). The sensor helps a "smart" pump system accurately control the pump flow rate throughout changing operating conditions. Set point control in the pump (through a manual setting or digital/analog proportional inputs) sets the desired flow rate. Continuous measurement and feedback from the sensor provides actual output information to the pump, allowing the pump to self-adjust its speed and maintain the programmed flow rate. If a reduction in flow rate is sensed, the pump will speed up to full 360 spm operation, resulting in a quick re-priming of the pump. The pump will then slow down back to set point once flow is re-established.
Walchem, an Iwaki America Company