Automatic air-vent type for eliminating gas-lock trouble
Electromagnetic metering pumps EHN-NAE series
(automatic air-vent type) |
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| Contact
us |
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This type equips automatic
air vent mechanism. A 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.
Principle of operation
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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. Little
bit of liquid is discharged from automatic bleed valve,
too.
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Specifications
| Max. discharge capacity |
110 mL/min |
| Max. discharge pressure |
0.5 MPa |
| Main materials |
PVC |
| Stroke rate |
1 to 360 spm |
| Power supply |
AC100 to 240V 50/60Hz single phase |
| Liquid temp. range |
0 to 40 C deg. (No viscous, frozen nor slurries can be handled.) |
| Functions of the controller |
EXT operation: Multiply (1 : n), Dividing (n : 1)
STOP function |
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• Magnetic drive pumps
• Metering pumps
 &
dosing pumps
• Pneumatic drive pumps
• Air pumps
• Gear pumps
• Turbine pumps
• Screw pumps
• Water quality control |
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