5-6
EB 2551-2 EN
Installation
5.4.1
Leak test
The plant operator is responsible for per-
forming the leak test and selecting the test
method. The leak test must comply with the
requirements of the national and internation-
al standards that apply at the site of installa-
tion.
SAMSON's After-sales Service can support
you to plan and perform a leak test for your
plant.
1. Slowly open the shut-off valve (1) in-
stalled upstream of the regulator.
2. Apply the required test pressure.
3. Check the regulator for leakage to the
atmosphere.
4.
Depressurize the pipeline section and
valve.
5. Rework any parts that leak and repeat
the leak test.
Tip
5.4.2
Pressure test
The plant operator is responsible for
performing the pressure test.
SAMSON's
After-sales Service can support you to plan
and perform a pressure test for your plant.
Risk of valve damage due to a sudden pres-
sure increase and resulting high flow veloci
-
ties.
−
Slowly open the shut-off valves.
During the pressure test, make sure the fol
-
lowing conditions are met:
Î
The maximum test pressure does not
exceed 10 bar.
Î
Adjust the largest set point at the pilot
valve.
If a pressure test of the plant is to be per-
formed with 1.5 times the pressure rating of
the safety excess pressure valve, the regula
-
tor must be removed and a suitable length of
pipe installed in its place before testing.
Note
NOTICE
!
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