Information On The Discharge-Side Installation - ProMinent delta General Operating Instructions

Fig. 11

3.4 Information on the discharge-side installation

With return from the main line
P_MAZ_0008_SW
Fig. 12
Avoid exceeding maximum permissible
operating pressure
P_MAZ_0007_SW
Fig. 13
PD
*
P_MOZ_0001_SW
Fig. 14
With pulsations caused by acceleration
inertial forces
PD
*
P_MOZ_0001_SW
Fig. 15
Install a vacuum breaker if the feed chemical may not press through
n
the metering pump. A metering pump is not an absolutely leak-tight
shut-off device.
Install the injection valve at the injection point to prevent unwanted
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mixing of water and feed chemical in the discharge line.
A relief valve with a return into the storage tank is useful as overload
n
protection for the discharge line, for example install a ProMinent
tifunctional valve.
Dampen pressure peaks with a metering stroke with long discharge
n
lines with a pulsation dampener or increase the pipe cross-section.
* Ventilation line with pressure vessels
PD Pulsation damper
Dampen the pulsations with a pulsation dampener in order to avoid
n
metering errors, premature wear and tear and damage to the metering
system.
* Ventilation line with pressure vessels
PD Pulsation damper
Installation, hydraulic
® mul‐
13