Samson 33-7, Монтаж и эксплуатация

Страница: 27 / 58

EB 2551-2 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.
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 5-1). 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 ‘Support or
suspension’ in this section.
Î
Install the regulator allowing sufficient
space to remove the actuator and valve
or to perform service work on them.
Mounting position
To ensure that the regulator functions proper-
ly, proceed as follows:
Î
Install the regulator with the actuator sus-
pended downward in horizontal pipe -
lines (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.
Do not install any instruments (e.g. tempera-
ture regulators or shut-off valves) that restrict
the cross-section of the pipe between the
pressure tapping point and the regulator.
NOTICE
!
Note