Samson 2404-2, Mounting And Operating Instructions

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5-4 EB 2540 EN
Installation
5.3.1 Installing the regulator
Install the regulator in such a way that it is
still easily accessible after the plant is com-
pleted to facilitate maintenance or revision
work.
Allow enough space (min. 150 mm) for set
point adjustment (2.3) at the pilot valve (2)
using a socket wrench.
1. While installing the regulator, close the
shut-off valve (1) in the supply line up-
stream of the input pressure regulator
(see Fig. 5-2).
2. Depressurize the plant.
3. Remove the protective caps from the
valve ports before installing the valve.
4. Lift the valve using suitable lifting equip-
ment to the site of installation. Observe
the flow direction through the valve. The
arrow on the valve indicates the direction
of flow.
5. Make sure that the correct flange gaskets
are used.
6. Bolt the pipe to the valve free of stress.
7. Fasten the supply line (pipe Ø ½“) to the
input pressure regulator (4.1) free of
stress (see Fig. 5-2).
8. Fasten the control line (pipe Ø ½“) to the
pilot valve (4.2) free of stress (see
Fig. 5-2).
9. Slowly open the shut-off valve in the sup-
ply pipeline after the regulator has been
installed.
5.3.2 Cleaning the pipeline
We recommend additionally flushing the
pipeline without the installed regulator be-
fore start-up.
In this case, install a suitable length of pipe
into the pipeline in place of the regulator.
Î
Observe the mesh size of the upstream
strainer for the maximum particle size.
Use strainers to suit the process medium.
Î
Check the strainer for dirt each time the
pipeline is flushed and clean it, if neces -
sary.