
EB 3003 EN
9
Installation
5
Installation
The
Type 42-24
and
Type 42-28
Regulators
are designed for installation in the
high
pressure
(flow) line of the plant.
The
Type 42-24
and
Type 42-28
Regulators
are designed for installation in the
low pres-
sure
(return flow) line of the plant.
Î
Choose a place of installation that allows
you to freely access the regulator even af-
ter the entire plant has been completed.
Î
Install a strainer (e.g. SAMSON
Type 2 N) upstream of the regulator (see
section 5.2).
Î
Flush the pipeline thoroughly before in-
stalling the regulator to ensure that any
sealing parts, weld spatter and other im-
purities carried along by the process me-
dium do not impair the proper function-
ing of the valve, above all the tight shut-
off.
Î
The direction of flow must match the di-
rection indicated by the arrow on the
body.
NOTICE
Incorrectly installed regulator
The pressure regulator can be dam
-
aged.
−
Make sure the regulator is installed
free of stress.
−
Do not attach supports (if required)
directly to the valve or actuator. At
-
tach the supports near to the con-
necting flanges.
−
Observe permissible mounting po-
sition.
5.1
Mounting position
See Fig. 2 for permissible mounting positions.
Standard mounting position
· Install valve
without actuator in a horizontal pipeline with
the connection for the actuator facing down-
wards. Make sure the medium flows through
the valve in the direction indicated by the ar-
row.
Fig. 2:
Permissible mounting positions
Connect the actuator to the valve bottom sec-
tion using the coupling nut (11).
Balanced by a bellows or
diaphragm
−
Standard mounting position
All versions
Balanced by a bellows
−
Above 80 °C
−
Steam applications
Balanced by a bellows
−
All versions DN 15 to 80
plus up to max. 80 °C
Balanced by a diaphragm
−
All versions up to max. 80 °C
Balanced by a bellows
−
Versions with fixed plug
guide