Start-Up And Putting The Device Back Into Operation; Starting Up The Plant - Samson 43-3 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. Slowly open the shut-off valves in the
pipeline. Slowly opening these valves
prevents a sudden surge in pressure and
high flow velocities which can damage
the valve.
3. Check the regulator to ensure it functions
properly.

6.2 Starting up the plant

1. Open the shut-off valve slowly in the flow
pipe first. Afterwards, open all the valves
on the consumer side (downstream of the
regulator).
2. Fill the plant slowly with the process me-
dium. Avoid pressure surges.
3. Make sure that the pressure rises simulta-
neously upstream and downstream of the
regulator.
4. To start up the regulator, open the down-
stream side slowly.
5. Check the adjusted temperature set point
at the thermometer installed near the
temperature sensor.
6-2 EB 2173 EN