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Datasheet 3.09-20.315-01-EN
MD15-FTL-HE, MD15-FTL-OV
Product Description
Issue 2017-01-09 Rev 1
Mounting the Valve
!
NOTICE
The valve may only be installed by qualified technicians. In addition to the generally valid installation
guidelines, the following points are to be observed:
■
The pipeline system and the interior of the fitting must be free of foreign objects. In the event of
contaminated media, dirt collectors are to be inserted upstream of the valves with fine screens,
mesh width 0.25 mm.
■
There must be no tension between the valve and the pipeline connection.
■
To avoid eddy formations in the valve body, the valve should be installed in a straight section of the
pipe. A distance of 10 times the nominal diameter is recommended between the valve flange and
manifold or other similar parts.
■
The installation location is to be selected so that the ambient temperature at the actuator is kept
between 0 – +50 °C.
■
When carrying out installation, the permissible maximum pressure difference
p and the specified
direction of flow must be observed (see table in "Types" section).
■
Once the valve is installed, make sure the ball in the valve seating can be moved easily by pushing
in the valve stem.
■
Approximately 30 mm of free space is required above the actuator to install the actuator and
remove the housing cover.
■
For safety reasons, do not suspend the small actuators from under the valve.
■
Observe the direction of flow arrow on the valve body. Inverting the direction of flow impairs control
behavior.
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