Diaphragm metering pumps EWN

Metering and Volumetric Pumps
EWN-(R) Series

The high-end electromagnetic metering pump:

• Stroke number can be adjusted in increments of 1 stroke (between 1 and 360 spm)

• Water and dust protection (IP65)

• New connection system prevents hose tangling

• Large LCD display

Specifications:

Main Features

• Flow range: 0.2 to 25.2 L/h (0.05 to 6.7 GPH)

• Maximum pressure: up to 20 bar (290 PSI)

• Stroke frequency range: 1 to 360 strokes per minute (spm)

• Fine flow adjustment: stroke length adjustment for precise dosing

• Multi-voltage operation: 100–240 VAC

• Protection class: IP65 (water and dust resistant)

• Quick priming: reliable operation even after long periods of inactivity

Advanced Features

• Automatic degassing system: removes trapped air without gas-lock, ideal for gaseous liquids like sodium hypochlorite or hydrogen peroxide

• Analog and digital control: 4–20 mA input, pulse control, batch or timed batch mode

• Proportional control with flow sensor EFS (EWN-Y model): automatic flow adjustment based on changes in temperature, viscosity, or pressure

• Safety features: diaphragm rupture detection, overpressure or blockage alert, safety drain

• Flexible installation: remote controller with LCD, multiple connection options (threaded, piping, flanges)

Advantages

• High accuracy: ±1% repeatability over a wide flow range

• Energy saving: low-consumption brushless motor

• Versatility: suitable for gaseous or viscous liquids, with or without flow sensor

• Reliability: quiet operation, quick priming, and constant flow maintenance

• Easy installation: intuitive user interface, flexible mounting options