Samson 3510 Series - Mounting the Actuator Onto the Valve; Installing the Valve into the Pipeline

5-4 EB 8091 EN
Installation
5.3.1 Mounting the actuator
onto the valve
Risk of personal injury due to preloaded
springs.
Actuators with preloaded springs are under
tension. They can be identied by the long
bolts protruding from the bottom of the actu-
ator.
Î Before starting any work on the actuator,
relieve the compression from the pre-
loaded springs (see associated actuator
documentation).
Depending on the version, SAMSON control
valves are either delivered with the actuator
already mounted on the valve or the valve
and actuator are delivered separately. When
delivered separately, the valve and actuator
must be assembled together on site.
Î To mount the actuator, proceed as de-
scribed in the associated actuator docu-
mentation.
5.3.2 Installing the valve into
the pipeline
a) Version with female thread
or anges
1. Close the shut-off valves in the pipeline
at the inlet and outlet of the plant section
while the valve is being installed.
2. Prepare the relevant section of the pipe-
line for installing the valve.
3. Remove the protective caps from the
valve ports before installing the valve.
4. Lift the valve to the site of installation (see
the 'Lifting the valve' section). Observe
the ow direction through the valve. The
arrow on the valve indicates the direction
of ow.
5. Make sure that the correct gaskets are
used on the end connections.
6. Bolt the pipe to the valve free of stress.
7. Attach a support or suspension on the
valve, if necessary.
b) Version with welding ends
1. Proceed as described above under ‘Ver-
sion with female thread or anges’, steps
1 to 4.
2. Completely retract the actuator stem to
protect the plug from sparks during weld-
ing.
3. Weld the valve free of stress into the
pipeline.
4. Attach a support or suspension on the
valve, if necessary.
WARNING
!