Samson 3241, Монтаж и эксплуатация

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EB 8012 EN 35
Mounting and start-up
Fail-safe position
Î
Shut off the signal pressure line.
Î
Check whether the valve moves to the
fail-safe position.
Adjustable packing
Tip:
A label on the flange (2) or yoke (3)
indicates whether an adjustable
packing is installed.
1. Tighten the threaded bushing gradually
(by turning it clockwise) until the packing
seals the valve.
NOTICE
Risk of valve damage due to the
threaded bushing tightened too far.
Make sure that the plug stem can still
move smoothly after the threaded
bushing has been tightened.
2. Open and close the valve several times.
3. Check the valve for leakage to the atmo-
sphere (visual inspection).
4. Repeat steps 1 and 2 until the packing
completely seals the valve.
Note:
If the adjustable packing does not
seal properly, contact SAMSON's
After‑sales Service department.
Pressure test
During the pressure test, make sure the fol-
lowing conditions are met:
−
Retract the plug stem to open the valve.
−
Observe the maximum permissible pres-
sure for valve and plant.
Note:
The plant engineering company is re-
sponsible for performing the pressure
test. SAMSON's After‑sales Service
department can support you to plan
and perform a pressure test for your
plant.
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