Initial Start-Up - Mankenberg UV 3.0 ATEX Originalbetriebsanleitung

Original operating manual
Back pressure regulators UV 3.0 ATEX

8 Initial start-up

No fitting may be operated that does not have a sufficient pressure and temperature range for
the operating conditions – see section Intended use [} 4] and markings on the fitting. The
manufacturer MANKENBERG should be consulted in the case of any applications outside of
danger of
this range.
fatalities
Failure to observe this regulation may mean danger to life and limb and may cause
damage to the pressure-regulating valve.
The fitting is supplied with no tension on the spring – hence no defined operating pressure has been set in the
factory. During initial start-up, the valve must be adjusted to the system parameters.
The adjusting screw on the spring module should be tensioned for this purpose: Clockwise rotation (when
looking onto the adjusting screw) has the following effect:
» on the pressure-reducing valve: the outlet pressure increases.
» on the backpressure regulator: the inlet pressure increases.
» on the vacuum control valve: the set pressure increases
» on the differential pressure control valve: the operating pressure increases
» on the flow control valve: the flow increases
Annotation to the differential pressure control valve:
a differential pressure control valve based on a pressure-reducing valve closes at increasing differential
pressure
a differential pressure control valve based on an backpressure regulator opens at increasing differential
pressure
Annotation to the flow control valve:
a flow control valve based on a pressure-reducing valve closes at increasing flow rate
a flow control valve based on an backpressure regulator opens at increasing flow rate
Annotation to the vacuum control valve:
a vacuum control valve based on a pressure-reducing valve closes at increasing vacuum (differential pressure
to the atmosphere)
a vacuum control valve based on a backpressure regulator opens at increasing vacuum (differential pressure to
the atmosphere)
The target value to be set by means of the adjusting screw shall be defined by the operator of the system and
must be calibrated with the aid of a pressure gauge on the plant side (or some other pressure monitoring
device).
When looking onto the adjusting screw:
Never fully remove the adjusting screw (by rotating it anticlockwise). Do not block the
adjusting screw in the position of maximum tension (when rotating it clockwise).
caution
At the beginning of or shortly after the initial start-up, the sieve or the filter insert of any
installed strainer/filter should be cleaned in order to avoid blocking the strainer/filter.
danger
UV 3.0 ATEX-4.X.222 Issue 18.07.2022
14
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