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Assembly / Installation
9) Suction height too high
PNDb-032-D
12) Lift effect
PNDb-035-D
If the metering point is below the chemicals store
tank, an adjustable pressure-retaining valve as well
as an additional shut-off valve is to be provided in
the metering line!
Page 18
9.5.2
Incorrect installation
10) Suction line cannot be vented
Do not route the suction line in loops because air
bubbles might remain in the suction line which
may result in a failure of metering.
13) Air chamber ineffective
11) Suction-side pre-pressure too high
ProMinent
®
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