Samson 41-73 Series, Mounting And Operating Instructions

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EB 2517 EN 5-9
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 installed
upstream of the regulator.
2. Apply the required test pressure.
3. Check the regulator for leakage to the at-
mosphere.
4. Depressurize the pipeline section and
valve.
5. Rework any parts that leak and repeat
the leak test.
5.4.2 Pressure test
The plant operator is responsible for per-
forming the pressure test.
SAMSON's Af-
ter-sales Service can support you to plan
and perform a pressure test for your plant.
Tip
Note
Risk of valve damage due to a sudden pres -
sure increase and resulting high flow veloci -
ties.
Î
Slowly open the shut-off valves.
During the pressure test, make sure the fol -
lowing conditions are met:
Î
Do not allow the pressure to exceed the
1.5 times the pressure rating of the valve
body.
Î
The regulator must remain open.
Therefore, set the lowest set point to en-
sure that the regulator does not close. Al-
ternatively, detach the control line and
seal the opening at the valve body with a
G ¼ stopper (accessories: stopper 8323-
0030 and seal 8412-0771).
Î
Make sure that the pressure rises simulta-
neously upstream and downstream of the
regulator to avoid damaging the balanc-
ing bellows.
NOTICE !