Walchem EWN-B11VCUYA-2 EWN-Y Series Metering Pump, 0.5 GPH, 10mm, PVC, CE, FKM, 1/4in x 3/8in, 230V, EFS-05-FH Flow Sensor, Auto Degassing Valve

EWN-Y Series + EFS Flow Sensor provides precise flow monitoring, feedback, 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 EFS is mounted directly on the pump for accurate dosingrate measurement - all without any time-consuming calibration.

High Speed Performance. E-Series pumps operate up to 360 strokes-per-minute with adjustments in 1 spm increments, providing high resolution chemical feed. Adjustable stroke length further increases the ability to refine the output, making the E-Series one of the most versatile solenoid metering pumps on the market.

Engineered Longevity. All E-Series pumps feature dual bearing support. The armature and shaft are supported with a bearing on each end, which ensures proper axial movement, enabling the E-Series to operate at 360 SPM while extending the life of the diaphragm.

Superior Check Valve Performance. Dual Check Valve Assemblies in both suction and discharge fittings feature precision ball guides and tapered seats. Precise machining and molding of parts limit valve ball travel, ensuring that balls fully seat and seal with every stroke. This superior check valve design guarantees fast priming and reliable performance.

High Compression Ratio. The compression ratio of a metering pump is important because it affects the pump's ability to prime and vent. The compression ratio is raised when you reduce the dead volume of the pump head during operation. All E-Series pumps feature a very high compression ratio that ensures proper feed especially with off-gassing products (i.e. Sodium Hypochlorite).

Features of integrating the EFS Sensor with the EWN-Y Pump:

• The EWN-Y Series pump combined with EFS flow sensor provides accurate real-time control and display of the dosing rate.
• Set point control allows the desired flow rate to be simply programmed into the pump. The pump will change rate to achieve the target flow rate - all without any time-consuming calibration.
• The EFS is easily mounted directly to the pump discharge, connects to the control unit with supplied connector, and self recognizes and initializes the sensor.
• The EWN-Y provides a clear display of actual measured dosing rate and provides a 4-20 mA output signal proportional to the flow rate.
• Operating history such as total volume, number of strokes, power cycles and power-on time are stored in memory and can be viewed for validation.

For more information, please see Brochure, EWN-Y Manual and EFS Sensor Manual