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
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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. |
Catalog for Europe (PDF: 389KB)