Start-Up And Putting The Device Back Into Operation; Starting Up The Plant - Samson 45-1 Mounting And Operating Instructions

Start-up
6.1 Start-up and putting the
device back into operation
1. Depending on the field of application,
allow the regulator to cool down or
warm up to reach ambient temperature
before start up.
2. All consumer valves are open.
3. Open the shut-off valves slowly over a
time period of several minutes. Slowly
opening these valves prevents a sudden
surge in pressure and high flow velocities
which can damage regulator parts.
4. Check the regulator to ensure it functions
properly (see section 'Adjusting the dif-
ferential pressure set point' in the 'Oper-
ation' chapter).
Before starting up the plant, make sure the
following conditions are met:
− The control line installed on site is open
(needle valve) and correctly connected.
6-2

6.2 Starting up the plant

1. The plant is filled with the process medi-
um (see section 'Filling the plant' in the
'Installation' chapter).
2. The control line (if installed on site) is
open (needle valve) and correctly con-
nected.
Î To start up the pressure regulator, open
shut-off valves slowly.
3. Slowly open the shut-off valves upstream
of the pressure regulator.
4. Slowly open all the valves downstream of
the regulator (consumer side).
5. Avoid pressure surges.
6. Put the pressure regulator into operation.
EB 3124 EN