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3
Installation and Adjustment
The flow direction must coincide with the arrow on the housing.
The valve can be installed in any mounting position.
The pipe must be thoroughly flushed prior to installation of the pressure reducer to
prevent impurities picked up by the medium having an impact on the satisfactory
operation.
Caution!!!
Before commissioning the pressure reducer, it should be ensured that both
pressure gauge connections on the housing are sealed with pressure gauges or
sealing plugs.
The desired secondary pressure is set by turning the adjusting spindle at idle
pressure (zero consumption).
Turning the adjusting spindle in clockwise direction increasesthe secondary pres-
sure and turning the spindle in counter-clockwise direction reduces the secondary
pressure. When choosing the setting, check that the secondary pressure set for
zero consumption reduces during operation depending on the volume removed.
The set desired value can be checked at the pressure gauge arranged on the secon-
dary pressure side.eingestellten Sollwertes.
4
Maintenance
The device should be checked at intervals which correspond to the respective
operating conditions in order to eliminate any faulty operation which may be caused
by impurities, scaling and natural wear.
After long periods of non-use the function of the valve must be tested.
Caution!!!
When carrying out assembly work on the pressure reducer the corresponding
system part must always be relieved of pressure and emptied, depending on the
medium used.
At high temperatures you must always wait for the temperature to cool down to
ambient temperature.
5
Disassembly (a. to h.) and assembly (i. to p.) for fittings
For disassembly refer to graphics a) to h), for assembly refer to graphics i) to p).
In addition to the general valid assembly instructions, attention must be paid that
the installation must generally be depressurized before dismantling the valve.
Assembly and maintenance instructions - 683 | Version: 06/2023 · V02
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