EWN-A
2Pages

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Catalog excerpts

EWN-A - 1

IWAKI IWAKI ELECTROMAGNETIC METERING PUMPS Electromagnetic metering Automatic air vent type pumps This type equips automatic air vent mechanism. An air vent valve built-in pump chamber enables reliable air venting. Also equipped manual air vent valve enables easy pressure release in discharge piping. Gaseous liquid such as sodium hypochlorite or hydrogen peroxide can be injected without gas locking. • Entrained air is automatically expelled from the pump head. No special degassing is needed. • The pump immediately resumes operation without gas lock even after a long period of stoppage. • Use the air vent port manually for quick release of discharge line pressure. • Capable of pumping concentrated sodium hypochlorite Manual air vent port Manual air vent adjusting screw Air Fitting adapter Automatic air vent valve Valve Pump head Air which comes from suction port goes to the connection adapter through pump head. Because pump discharge side is pressurized, air goes to the automatic air vent valve which the pressure load is lower than pump discharge side, and goes out little by little together with liquid. Once the pump gets out of locked air condition, it returns to normal operation to discharge the liquid. A ittle bit of liquid is discharged from automatic bleed valve, too. Solutions for chemical handling applications

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EWN-A - 2

Parts name Specifications of pump Dimensions in mm Model Note 1: Each discharge capacity shown above is at the discharge pressure(stroke length 100%,stroke rate100%) and increases as a discharge pressure reduces. Note 2: The performance is based on pumping clean water at ambient temperature at rated voltage. Note 3: Liquid temperature range: VC/VH types -10 to 40 °C Liquid characteristics must not change (viscosity, freezing or slurries contained) https://www.iwaki.de IWAKI Europe GmbH, Siemensring 115, 47877 Willich, Germany TEL: +49 2154 9254 0 FAX: +49 2154 9254 48 E-Mail: sales@iwaki.de...

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