Encore - Model EP -Solenoid Metering Pumps

The Encore EP is available in seven sizes for metering applications up to 14.98 lph with back pressures up to 16 bar. Double-ball valves ensure accurate, consistent dosing. The dosing rate can be adjusted by changing the stroke frequency manually, via external control contact or by using a 0/4 - 20 mA signal.

Several different materials and connections are available for wetted-end components. By using appropriate and recommended materials, the Encore EP can be used in a wide variety of process applications.

Matching accessory sets with tubing, injection nozzles and suction lines allow quick installation and reliable operation.

• Thanks to the sturdy, low-maintenance solenoid drive, the media being supplied (for example acids, alkalis, coagulants and flocculants) are reliably and accurately dosed.
• The combination of the Encore EP’s solid design and the easy-to-use digital controls allow for short set up times and efficient operation.
• The compact design and the small footprint allow for easy integration into dosing systems even for installations with limited space available.
• Wall mounting is possible provided the check valves remain in a vertical orientation by rotating the head.
• The Encore EP is also available with an optional Ethernet interface. This network connection enables you to control stroke frequency. In addition, all error messages can be transmitted back to the external controller.

• Capacity range to 14.98 lph, up to 16 bar
• Wide range power supply unit 110-240 VAC, 50/60 Hz
• Multi-language menu support
• Easy-logic menu controls with graphical display guidance
• Calibration functionality
• Multi-unit capacity indication
• Two Eco-operation settings
• External control via standard signal 0/4 - 20 mA
• External control via floating contacts with impulse increase and reduction
• Batch dosing with both interval and timer functions
• Integrated vented head (standard on plastic version)
• Wall and floor mounting possible without a bracket
• Double-ball valves ensure accurate dosing
• Materials available: PVC (standard), PP, PVDF and Stainless Steel
• Material consistency for pumps and accessories
• Dosing heads and valves for high-viscosity media are available

The flow curves are valid for ambient temperatures of 20oC (68oF) and dosing water at 100% stroke frequency. The delivery capacities depend on the medium (density and viscosity) and temperature.

Even the best pump can be improved – simply by the addition of appropriate accessories.

Suitable sets of accessories, consisting of suction/discharge tubing, foot valve and injection nozzle, are available for the dosing pumps.

To turn your dosing pump into an efficient dosing system, we recommend using the following accessories:

• Injection nozzles - to dose the medium into the main line and to prevent it from flowing back into the pressure line
• Back pressure and pressure relief valves - to increase dosing accuracy or to protect the system against excessive pressure
• Pulsation dampener - to dampen supply flow as well as to reduce discharge flow pulsations
• Priming aids - to significantly ease priming of dosing pumps with low supply volumes per stroke, for large suction heights, highly viscous dosing media, for initial priming or when priming after the system has been idle
• Suction pressure regulator - to prevent medium flow when the dosing pump is not running or to prevent a vacuum being formed in the event of a pipe failure