Installation; Installation Conditions - Samson 43-3 Mounting And Operating Instructions

5 Installation

The work described in this section is to be
performed only 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 Make sure that the inlet and outlet flows
of the plant are correctly assigned to
ports A, B and AB according to Fig. 5-2.
EB 2173 EN
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 110 °C.
Î At medium temperatures above 110 °C,
install the regulator with the control ther-
mostat suspended downward in horizon-
tal pipelines (see Fig. 5-1).
Î Make sure the direction of flow matches
the direction indicated by the arrow on
the valve body.
Î Contact SAMSON if the mounting posi-
tion is not as specified above.
Installation
5-1