Samson 2489/58 Series, Mounting And Operating Instructions

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24 EB 3135-2 EN
Mounting and start-up
Î
Check any mounted pressure gauges to
make sure they function.
5 Mounting and start-up
5.1 Mounting orientation
Standard mounting position
Î
Install the regulator in a horizontal pipe -
line with the diaphragm actuator (6) with
the control thermostat connection facing
downward (see Fig. 3).
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 flow 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. 1992-3132) 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
adverse weather conditions (temperature,
humidity).
− 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.
5.2 Additional fittings
Strainer
A strainer installed upstream in the flow 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 flow matches
the direction indicated by the arrow on
the body.
− Install the strainer with the filter element
facing downward.
− Allow sufficient space to remove the filter.
Check the strainer at regular intervals and
clean it, if necessary.
NOTICE !
Information