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Measures for preparation
Special storage instructions for elastomers
Elastomer, e.g. actuator diaphragm
− To keep elastomers in shape and to pre-
vent cracking, do not bend them or hang
them up.
− We recommend a storage temperature of
15 °C for elastomers.
− Store elastomers away from lubricants,
chemicals, solutions and fuels.
Tip
SAMSON's After-sales Service can provide
more detailed storage instructions on re-
quest.
4.4 Preparation for installation
Proceed as follows:
Î Flush the pipelines.
Note
The plant operator is responsible for clean-
ing the pipelines in the plant.
Î Check the valve to make sure that it is
clean.
Î Check the valve for damage.
Î Check to make sure that the type desig-
nation, valve size, material, pressure rat-
ing and temperature range of the valve
match the plant conditions (size and
pressure rating of the pipeline, medium
temperature etc.).
Î Check any mounted pressure gauges to
make sure they function.
18
5 Mounting and start-up
5.1 Mounting orientation
Standard mounting position
Î Install the regulator in a horizontal pipe-
line with the set point adjuster (10) fac-
ing downward (see Fig. 1 and Fig. 2).
Installation conditions
− Make sure that the regulator remains
freely accessible after the plant has been
completed.
− Install a strainer upstream of the regula-
tor (see section 5.2).
− The direction of flow must match the di-
rection indicated by the arrow on the
body.
− Connect external control lines at the side
of the main pipe (see Fig. 5)
− Install the regulator free of stress.
NOTICE
!
Possible malfunction and damage due to ad-
verse weather conditions (temperature, hu-
midity).
− Do not install the device outdoors or in
rooms prone to frost.
− Protect the regulator against frost if it is
used to control freezing media.
− Either heat the regulator or remove it from
the plant and completely drain the residual
medium.
EB 3131-1 EN
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