Samson 41-23 - Start-up Procedure Overview; Starting Up the Plant; Regulation of Liquids; Regulation of Steam

6-2 EB 2512 EN
Start-up
Start-up/putting the valve back into opera-
tion
1. Dependingontheeldofapplication,
allow the regulator to cool down or heat
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
resulting high velocities that can damage
the valve.
3. Check the regulator to ensure it functions
properly.
Beforestartinguptheplant,makesurethe
following conditions are met:
− The control line is open and correctly
connected.
6.1 Starting up the plant
1. Open the shut-off valves slowly prefera-
bly starting from the upstream pressure
side. 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 to avoid damaging the balanc-
ing bellows.
6.1.1 Regulation of liquids
Î To start up the pressure regulator, open
shut-off valves slowly.
Î For liquid medium temperatures above
150°C,rstllthecompensationcham-
ber with the process medium. Proceed as
follows:
1. Unscrewllerplugfromthecompensa-
tion chamber.
2. Use the included plastic funnel or a jug
to pour in the process medium until it
startstooverow.
3. Screwthellerplugbackinandtighten
it.
6.1.2 Regulation of steam
1. Unscrewllerplugfromthecompensa-
tion chamber.
2. Use the included plastic funnel or a jug
topourinwateruntilitstartstooverow.
3. Screwthellerplugbackinandtighten
it.
− All pipes conveying the process medium
must be completely drained and dry.
− Air and condensate must be allowed to
escape from the plant.
− Allow time for the pipes and valves to
heat up.