ProMinent delta General Operating Instructions page 12

Installation, hydraulic
With dirt or impurities in the feed chemical,
P_MAZ_0003_SW
Fig. 7
With slightly gaseous feed chemicals
(hydrogen peroxide, sodium-calcium hypo‐
chlorite ...)
P_MAZ_0004_SW
Fig. 8
Avoid allowing the suction line to run dry.
P_MAZ_002_SW
Fig. 9
Prime without connecting options at the
tank base
P_MAZ_0005_SW
Fig. 10
P_MAZ_0006_SW
12
fit a filter insert (mesh width 100–400 μm depending on the feed
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chemical and type of metering pump) for example.
Always connect the suction line somewhat above the tank base or any
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sediment accumulated.
With feed chemicals containing impurities or sediment, suspend the
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foot valve at a sufficient distance above the tank base or any sediment
that has accumulated - see Fig. 6.
Preferably route the suction line with a falling rather than a rising gra‐
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dient to prevent the priming of air bubbles.
Install the pump with the feed on the suction side.
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Install a foot valve at the end of the suction line, in case the pump is
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higher than the maximum fluid level in the storage tank.
Only shorten the free end of the suction line until the foot valve is sus‐
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pended just above the container base.
h
With high storage tanks without a connecting option at the tank base,
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prime using a siphon line.
Install a filling device (Fig. 10) or siphon vessel (Fig. 11) for the siphon
line (suction line).