Samson 3381 Series, Монтаж и эксплуатация, Страница: 26 / 48

5-4 EB 8084 EN
Installation
5.2 Preparation for installation
Before installation, make sure the following
conditions are met:
− Valve and silencer are clean.
−
The valve and silencer data (type desig-
nation, nominal size, material, pressure
rating and temperature range) match the
plant conditions (size and pressure rating
of the pipeline, medium temperature
etc.).
Proceed as follows:
Î
Lay out the necessary material to have
them ready during installation work. This
includes:
− Suitable gaskets (not included in the
scope of delivery of the silencer)
− Pipe expander, if applicable (not in -
cluded in the scope of delivery of the
silencer)
− Type 3381-1, Type 3381-1R and
Type 3381-4-X:
Nuts and bolts for flanged joints (not
included in the scope of delivery of
the silencer)
− Type 3381-3-X:
Studs and nuts for flanged joint on
the silencer (included in the scope of
delivery of the silencer)
Nuts and bolts for flanged joint on
the valve (not included in the scope
of delivery of the silencer)
5.3 Mounting the silencer
Risk of damage to components due to work
being carried out by personnel not quali-
fied for such tasks.
The plant operator or specialist company
performing the welding is responsible for the
selection of the welding procedure and the
actual welding operations on the valve and
silencer. This also applies to any required
heat treatment to be performed.
Î
Only allow qualified welding personnel
to carry out welding operations.
Premature wear and leakage due to
insufficient support or suspension.
Î
Support or suspend the valve sufficiently
at suitable points.
Risk of damage due to excessively high or
low tightening torques.
Observe the specified torques when tighten -
ing bolted joints.
Î
Observe the usual tightening torques for
the corresponding bolt diameters.
a) Type 3381-1, Type 3381-1R
and Type 3381-4-X
See Fig. 5-5
NOTICE !
NOTICE !
NOTICE !