Diaphragm pump EWN-A
for chemicalsairfor hydrogen

Diaphragm pump - EWN-A  - IWAKI - for chemicals / air / for hydrogen
Diaphragm pump - EWN-A  - IWAKI - for chemicals / air / for hydrogen
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Characteristics

Technology
diaphragm
Fluid
for chemicals, air, for hydrogen
Operation
manual
Mobility
stationary
Domain
industrial
Applications
discharge, metering
Voltage
240 V
Other characteristics
suction, automatic, line
Flow

Max.: 0.11 l/min
(0.02906 us gal/min)

Min.: 0.03 l/min
(0.00793 us gal/min)

Pressure

Max.: 1 MPa

Min.: 0.7 MPa

Fluid temperature

Max.: 40 °C
(104 °F)

Min.: 10 °C
(50 °F)

Description

This type equips automatic air vent mechanism. An air vent valve builtin 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. Principle of operation 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.

Catalogs

*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.