Samson 2488 N - Preparation for Installation; 5 Mounting and Start-Up; Mounting Position; Additional Fittings

16 EB 3136 EN
Mounting and start-up
5 Mounting and start-up
5.1 Mounting position
Standard mounting position
Î Install the regulator in a horizontal pipe-
line with the diaphragm actuator (6) fac-
ing downward (see Fig.2).
Installation conditions
− Make sure that the regulator remains
freely accessible after the plant has been
completed.
− The electric actuator must be mounted
above the valve body.
− Install a strainer upstream of the regula-
tor (see section5.2).
− Make sure the direction of ow matches
the direction indicated by the arrow on
the body.
− Install the regulator free of stress.
− On insulating the valve, do not insulate
the actuator and the coupling nut as well.
If necessary, an intermediate insulating
piece (order no. 1690-6975) must be
used. The insulating limit is in this case
approx. 25mm above the top of the
valve body.
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.
NOTICE
!
− 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.
5.2 Additional ttings
Strainer
A strainer installed upstream in the ow pipe
holds back any dirt or other foreign particles
carried along by the medium. For example,
the SAMSON Type1NI Strainer is suitable
(uT1010).
− Install the strainer upstream of the regu-
lator.
− Make sure the direction of ow matches
the direction indicated by the arrow on
the body.
− Install the strainer with the lter element
facing downward.
− Allow sufcient space to remove the lter.
Shut-off valve
Install a hand-operated shut-off valve both
upstream of the strainer and at the outlet of
the return ow pipe (see Fig.4). This allows
the plant to be shut down for cleaning and
maintenance, and when the plant is not used
for longer periods of time.
Pressure gauge
Install a pressure gauge at a suitable point to
monitor the pressures prevailing in the plant
(see Fig.4).