Samson 3510, Монтаж и эксплуатация

Страница: 27 / 48

EB 8091-1 EN 27
Mounting and start-up
Adjustable packing
1. Tighten the threaded bushing gradually
(by turning it clockwise) until the packing
seals the valve.
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.
If the adjustable packing does not seal prop-
erly, 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.
The plant operator is responsible for per-
forming the pressure test.
SAMSON's Af -
ter-sales Service department can support you
to plan and perform a pressure test for your
plant.
NOTICE !
Note
Note