Initial Start-Up; Normal Operation - Mankenberg NV 93 Betriebsanleitung

7 Initial start-up

During initial start-up (and after longer standstill) it has to be checked, whether the float has been
correctly adjusted during installation: A float featuring an inner tube can easily be adjusted at the bar.
See also Section 5.2 <Installation preparations>.
No fitting may be operated that does not have a sufficient pressure and temperature range
for the operating conditions – see Section 1 <Intended use> and markings on the fitting.
The manufacturer MANKENBERG should be consulted in the case of any applications
outside of this range.
danger of
fatalities
Failure to observe this regulation may mean danger to life and limb and may cause
damage to the pressure-regulating valve.
To function correctly, the system pressure must lie within the range of the working pressure
of the float valve. In cases of doubt contact MANKENBERG service.
See Section 11 <Further information> for the addresses.
note
If the system section is not yet filled with liquid:
Fill slowly so that the float (and lever) are not damaged by pressure surge.
Failure to observe this instruction may cause damage to the float valve.
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
After the initial start-up:
Check the seals on screw-mounted parts of the body and reseal if necessary.
If required, ask MANKENBERG for the tightening torques.
caution
Observe the relevant notes in Section 10 <Troubleshooting help>.

8 Normal operation

A properly designed float valve works automatically and does not need any form of auxiliary energy.
It is necessary to ensure that the materials selected for the parts of the fitting in contact with
media are suitable for the media in use. The manufacturer accepts no liability for any damage
due to corrosion by aggressive media on parts made of unsuitable materials.
danger of
Failure to observe this regulation may mean danger to life and limb and may cause
fatalities
damage to the pipeline system and to the fitting.
The fitting has functional parts that have to remain capable of moving easily. Make sure that
parts in contact with the medium cannot freeze nor become blocked by dirt or deposits.
Observe the maintenance intervals.
Failure to observe this instruction may cause damage to the pipeline system and to
caution
the fitting.
It is recommended that the fitting should be inspected to ensure that it is functioning correctly after each
new start-up.
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