Samson 43-6, Mounting And Operating Instructions

Page: 29 / 68

EB 2172 EN 5-1
Installation
5 Installation
The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
Valve and control thermostat can be assem-
bled before or after the valve has been in-
stalled in the pipeline. We recommend first
installing the valve without the control ther-
mostat into the pipeline.
5.1 Installation conditions
Work position
The work position for the regulator is the
front view onto all operating controls on the
regulator (including any additional fittings)
seen from the position of operating person-
nel.
Plant operators must ensure that, after instal-
lation of the device, the operating personnel
can perform all necessary work safely and
easily access the device from the work posi-
tion.
Pipeline routing
The inlet and outlet lengths vary depending
on several variables and process conditions
and are intended as recommendations. Con-
tact SAMSON if the lengths are significantly
shorter than the recommended lengths.
To ensure that the regulator functions proper-
ly, proceed as follows:
Î
Observe the inlet and outlet lengths (see
Table 5-2). Contact SAMSON if the reg-
ulator conditions or state of the medium
process deviate.
Î
Install the regulator free of stress and
with the least amount of vibrations as
possible. Read information under
‘Mounting position’ and ‘Temperature
sensor’ in this section.
Î
Install the regulator allowing sufficient
space to remove the control thermostat
and valve or to perform service work on
them.
Mounting position
To ensure that the regulator functions proper-
ly, proceed as follows:
Î
The regulator can be mounted in any po-
sition when the medium temperature is
up to 80 °C/175 °F.
Î
At medium temperatures above
80 °C/175 °F and with steam, install it
with the control thermostat suspended
downward in horizontal pipelines (see
Fig. 5-1).
Î
Make sure the direction of flow matches
the direction indicated by the arrow on
the body.
Î
Contact SAMSON if the mounting posi-
tion is not as specified above.
Damage due to freezing.
Protect the regulator from icing up when con-
trolling media that can freeze. Unless the
regulator is installed in locations where no
frost occurs, remove the regulator from the
pipeline when the plant is shut down.
NOTICE
!