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ProMinent gamma/ X User Manual

ProMinent gamma/ X
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8.1.2 Installation of Metering Pumps With Bleed Valve
CAUTION!
All the installation and safety notes for metering pumps
without bleed valves also apply.
A return line is also connected in addition to the suction and discharge
line.
1. Attach the hose line to the return hose nozzle or to the liquid end
bleed valve. PVC hose, soft, 6x4 mm is recommended.
2. Feed the free end of the return line back to the storage tank.
3. Shorten the return line so that it is not immersed in the feed chem‐
ical in the storage tank.
8.1.3
Installation of Metering Pumps With Self-bleeding (SEK Type)
CAUTION!
All of the installation and safety notes for metering
pumps without self-bleeding also apply.
Do not exceed the maximum values for priming lift, pri‐
ming pressure and viscosity of the feed chemical.
Do not allow the suction side line cross-section to
exceed the line cross-section on the suction valve.
Information about priming pressure
Make sure that the priming pressure on the suction end
is at least equal to the return line pressure.
Back pressure in the return line restricts the bleeding
function.
In contrast, it is possible to operate the pump with back
pressure in the return line and atmospheric pressure on
the suction side.
A return line is also connected in addition to the suction and discharge
line.
The return line is connected to the vertical valve on the
upper side of the liquid end. It is factory-labelled with a
red sleeve - see Ä ‘Installation of the return line’
on page 31.
The discharge line is connected to the horizontal valve.
1. Attach the hose line to the return hose nozzle or to the liquid end
bleed valve. PVC hose, soft, 6x4 mm is recommended.
2. Feed the free end of the return line back to the storage tank.
3. SEK only: Insert the return line into the anti-kink device on the bleed
valve and screw it in place until the anti-kink device engages.
The anti-kink device prevents the return line from
kinking, avoiding the risk of self-bleeding failure.
Safety Information
Installation of the return line
Safety Information
Installation of the return line
Installation, hydraulic
31

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ProMinent gamma/ X Specifications

General IconGeneral
Protection classIP65
Max. Pressure25 bar
Power supply100-230 V, 50/60 Hz
Material of pump headPVDF, Stainless steel
Temperature range-10 °C to +45 °C
TypeDiaphragm dosing pump
Stroke lengthAdjustable
Stroke frequencymax. 180 strokes/min
Materials in contact with the mediumPVDF, PTFE, stainless steel
ControlManual, external control via contacts or 0/4-20 mA signal
Control OptionsExternal, potential-free contacts, 0/4-20 mA
Dosing Accuracy±2%