EWN-A

EWN-A

EWN-A

Product catalog summary
Overview
This document provides technical specifications and operational details for IWAKI's Electromagnetic Metering Pumps, specifically the EWN-A series with an automatic air vent type. These pumps are designed to handle gaseous liquids like sodium hypochlorite or hydrogen peroxide without gas locking.

Key Features
  • Automatic air vent mechanism for reliable air venting.
  • Manual air vent valve for easy pressure release in discharge piping.
  • Entrained air is automatically expelled, eliminating the need for special degassing.
  • Immediate resumption of operation without gas lock after stoppage.
  • Capable of pumping concentrated sodium hypochlorite.

Principle of Operation
Air from the suction port moves through the pump head to the connection adapter. Due to pressurization on the pump discharge side, air is expelled through the automatic air vent valve. Once air is cleared, the pump resumes normal liquid discharge.

Specifications
  • Power Voltage: 100 - 240 VAC, 50/60Hz
  • Average Power Consumption: 20W (B), 24W (C)
  • Discharge Capacity: 0.04-0.08 mL/shot to 0.12-0.31 mL/shot
  • Rated Discharge Pressure: 0.7 MPa
  • Stroke Length Adjustable Range: 0.1-100%
  • Liquid Temperature Range: -10 to 40 ºC

Materials
The pump components are made from materials such as PVC, PTFE, EPDM, FKM, and Hastelloy C276, ensuring durability and compatibility with various chemicals.

Safety and Legal Considerations
Users are advised to read the instruction manual carefully before use. The product may require an export license due to international export control regulations.

Contact Information
IWAKI Europe GmbH, Siemensring 115, 47877 Willich, Germany. Tel: +49 2154 9254 0, Fax: +49 2154 9254 48, Email: [email protected]
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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

 Open the catalog to page 1
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: [email protected] Caution...

 Open the catalog to page 2

All IWAKI Europe GmbH catalogs and technical brochures

  1. TC-X

    28  Pages

  2. IX-B

    8  Pages

  3. MEK

    5  Pages

  4. MMP

    2  Pages

  5. MP series

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  6. MTFO

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  7. IX-C/D

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  10. EJ-R

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  11. EWN-W

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  12. V

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  13. EWN-Y-A & EFS

    2  Pages

  14. Serie MDW

    8  Pages

  15. MDE

    8  Pages

  16. MX

    8  Pages

  17. MDM

    5  Pages

  18. MXM

    5  Pages

  19. SMX

    8  Pages

  20. RD-40

    2  Pages

  21. EWN-Y

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  22. MDM NP

    8  Pages

  23. MD-F, MD-V

    10  Pages

  24. HRP

    2  Pages

  25. FW/-H

    12  Pages

  26. Serie YMD

    8  Pages

  27. Serie CFD

    12  Pages

  28. Serie FA

    12  Pages

  29. Air pumps

    8  Pages

  30. Serie MDT

    2  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.