Samson 3374 - Page 36

5-2 EB 3018 EN
Installation
Depending on the regulator version and
mounting position, the valve, actuator and
pipeline must be supported or suspended.
Risk of regulator damage due to incorrect
support.
Î Do not attach supports to the valve, to
moving parts on the actuator or to the
control lines.
Î Contact SAMSON if the mounting posi-
tion differs from the standard mounting
position.
Control line kit
After the actuator has been mounted, attach
the supplied high-pressure control line to the
regulator (see the 'Design and principle of
operation' section).
A control line kit for tapping pressure at the
valve body is available as an accessory part
from SAMSON (uT3095).
Needle valves and compression-type screw
ttings can be supplied as required. These
accessories are listed in u T3095.
Needle valve
If the regulator tends to hunt, we recommend
installing a needle valve in the control line in
addition to the standard SAMSON screw
joint with restriction.
NOTICE
!
Tip
Mounting position with the electric
actuator upright on top
Balanced by a diaphragm
− Air and gases up to 80°C
− Liquids up to 150°C
Balanced by a bellows
− Air and gases up to 80°C
− Liquids up to 150°C
− Steam control, up to max.
220°C
Mounting position with the
actuator suspended
Not permissible
Alternative mounting position
in riser pipes · Balanced by a
bellows
Version with xed plug guide
plus:
− Air and gases up to 80°C
− Liquids up to 120°C
Fig.5-1: Schematic drawing of mounting
position
Support or suspension
The plant engineering company is responsi-
ble for selecting and implementing a suitable
support or suspension of the installed regula-
tor and the pipeline.
Note