EWN-Y Series Metering Pump

The flexibility of the EWN-Y pump enable it be integrated into virtually any chemical feed application using a universal-voltage, digital controller with an expanded set of control features. Superb valve performance and advanced solenoid engineering combine to make a highly precise pump for the most demanding applications.

EWN pumps have outputs to 6.7 GPH (25.2 L/h) and a maximum pressure of 290 PSI (20 bar). The high speed of operation results in high resolution chemical feed and long service life. Quiet and compact, the EWN pumps prime in seconds and hold prime reliably.


Note 1: Max. output capacity shown is at Rated Discharge Pressure (stroke length 100%, stroke rate 100%) and increases as a discharge pressure reduces.
Note 2: Max pressure rating is the maximum useable capability of the pump. Max. output capacities may be lower than published at pressures higher than Rated Discharge Pressure. Max. pressure of PVC type is 174 PSI. Please contact your distributor for more information.
Note 3: The performance is based on pumping clean water at ambient temperature at rated discharge pressure and voltage.
Note 4: Liquid temperature: PVC liquid ends: 14 to 104°F (-10 to 40ºC) GRFPP/PVDF/SS liquid ends: 14 to 140°F (-10 to 60ºC)
Note 5: Ambient temperature: 32 to 122°F (0 to 50°C)
Relative humidity: to 85% (non-condensing)

Note 6: All pumps include a manual air vent valve except FC/SHN/HV models. All pumps include one foot valve, injection valve, 20 ft. of PE tubing and ceramic weight except for SH/H2/HV models.


EWN-Y Metering Pump with EFS Sensor

1– EFS Flow Sensor (See table for materials)
Blank: No sensor, pump only (See EWN-Y above)
1: EFS-05/10-FT
2: EFS-05/10-FH
3: EFS-05/10-FF
Size 05 for 11/16/21 pumps
Size 10 for 31/36 pumps

The new EWN-Y electromagnetic pump combined with EFS flow sensor provides accurate real-time control and display of dosing rate. Set point control allows the desired flow rate to be simply programmed into the pump. Through feedback from the EFS sensor, the pump constantly adjusts its speed to maintain the set dosing rate – even under changing temperature, viscosity or suction and discharge pressure conditions. The EWN-Y provides a clear display of actual dosing rate and a 4-20 mA output signal proportional to the flow rate.

Sensor Materials of Construction