Start-Up And Putting The Device Back Into Operation; Starting Up The Plant; Regulation Of Steam; Regulation Of Liquids - Samson 42-10 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

Î For steam applications, make sure that
the pipelines are dry. Moisture will dam-
age the inside of the valve.
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 it.
Î Raise the plant pressure in steps of
5 bar/70 psi.
Î Wait several seconds after each rise in
pressure before continuing.
6-2
6.2.1

Regulation of steam

Î For steam applications, make sure that
the pipelines are dry. Moisture will dam-
age the inside of the valve.
Unscrew filler plug (20) on the compensation
chamber (19). Use the included plastic
funnel or a jug to pour in water until it starts
to overflow (see 'Tightening torque' in the
Annex). Screw the filler plug (20) back in
and tighten it. The regulator is now ready for
operation. Open the hand-operated shut-off
valves slowly to prevent water hammer.
6.2.2

Regulation of liquids

Î To start up the regulator, open shut-off
valves slowly.
EB 3009 EN