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Installation
5.4.2
Pressure test
Note
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.
NOTICE
!
Risk of regulator damage due to a sudden
pressure increase and resulting high flow
velocities.
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.
5-8
5.5 Insulation
To insulate cold systems, we recommend first
filling the plant and carefully rinsing it. The
regulator must not yet be insulated at this
stage.
NOTICE
!
Risk of regulator damage due to incorrect
insulation.
Î Only insulate the regulator up to the con-
trol thermostat for medium temperatures
below 0 °C or above 80 °C.
1. Start up the plant and adjust the set point
(see the 'Start-up' section).
2. Shut down the plant again and let it heat
up until the condensation water has
dried off.
3. Insulate the regulator and pipes convey-
ing the process medium using insulation
material with a water vapor barrier. If an
external control line is to be routed
through the insulation, special care must
be taken with the sealing since slight
changes in shape may occur. The insula-
tion thickness depends on the medium
temperature and the ambient conditions.
50 mm is a typical thickness.
EB 2173 EN
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