Installation; General Notes; Installation Preparations - Mankenberg M Xtra Rp 840 Betriebsanleitung

The fitting is generally not capable of standing alone:
The spring module may have a greater weight/volume than the basic body with its pipe con-
nections.
note
Handle with care so that the fitting does not tip over during transport/storage.
• Pressure-regulating valves are generally supplied with a slackened spring. The spring must not be
pretensioned by means of the adjusting screw until after it has been installed, during initial start-up.

5 Installation

5.1 General notes

The same installation regulations apply to a fitting as to the system into which it is installed. The follo-
wing additional notes apply:
• Section 4 <Transport and storage> should also be observed during transport to the installation site.
• The installation site to allow perfect functioning of a fitting should be a section of pipe without any
flow disruptions, without any angles and without any restrictors or shut-off devices close to the fitting,
either upstream or downstream (optimum distance = 10 x DN). If this does not apply, the installation
situation should be checked with the plant operator and/or MANKENBERG.
• The statics of the pipeline must be designed so as to take account of the weight of the fitting – parti-
cularly those with an eccentric mass. If required, the pipeline may have to be properly supported on
both sides next to the fitting (or at the fitting itself) – particularly in the case of fittings with a substan-
tial mass and especially if vibrations are to be expected in the system.
When the fitting is supported, it is important to check that all functioning parts (adjusting screws,
exposed springs) remain capable of moving freely and are not blocked.
• The fitting must not be coated with thermal insulation.
A fitting that is operated at a medium temperature above 130°C needs undisrupted removal
of heat if it is to function perfectly.
Failure to observe this instruction may cause damage to the fitting and hence in the
caution
pipeline system as well.
• To protect internal functional parts (e.g. the seat) against damage and/or blockages, it may be
necessary to install a strainer and/or filter upstream of the fitting.
The mesh size of the sieve/filter for protecting against aggregates in the pipe section
should be selected by the plant operator according to the operating conditions.
Failure to observe this instruction may impair the function of the fitting and lead to
note
damage.

5.2 Installation preparations

• It is neccessary to ensure that a fitting is not installed unless its matches the operating conditions in
terms of function, pressure and temperature, range, body material as well as connection type and
dimensions.
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.
• Newly installed tanks and pipeline sections must be thoroughly rinsed and cleaned before commis-
sioning.
• The corrosion protection for the fitting must be adapted to the local conditions.
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