Samson 3510 - 5.3 Quick Check

26 EB 8091-1 EN
Mounting and start-up
3. Lift the valve to the site of installation.
Observe the ow direction through the
valve. The arrow on the valve indicates
the direction of ow.
4. Make sure that the correct gaskets are
used on the end connections.
5. Bolt the pipe to the valve free of stress.
6. Depending on the eld of application,
allow the valve to cool down or heat up
to reach ambient temperature before
start up.
7. Slowly open the shut-off valve in the
pipeline after the valve has been in-
stalled.
Risk of valve damage due to a sudden pres-
sure increase and resulting high ow veloci-
ties.
Slowly open the shut-off valve in the pipeline
during start-up.
8. Check the valve to ensure it functions
properly.
Version with welding ends
1. Proceed as described for Version with
female thread or anges (steps 1 to 3).
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. Proceed as described for Version with fe-
male thread or anges (steps 6 to 8).
5.3 Quick check
SAMSON valves are delivered ready for
use. To test the valve's ability to function, the
following quick checks can be performed:
Tight shut-off
1. Close the valve.
2. Slowly open the shut-off valve in the
pipeline.
Risk of valve damage due to a sudden pres-
sure increase and resulting high ow veloci-
ties.
Slowly open the shut-off valve in the pipeline
during start-up.
3. Check the valve for leakage (visual in-
spection).
Travel motion
The movement of the actuator stem must be
linear and smooth.
Î Open and close the valve, observing the
movement of the actuator stem.
Î Apply the maximum and minimum con-
trol signals to check the end positions of
the valve.
Î Check the travel reading at the travel in-
dicator scale.
Fail-safe position
Î Shut off the signal pressure line.
Î Check whether the valve moves to the
fail-safe position.
NOTICE
!
NOTICE
!