7
MT 235 – EN ed.2015 (Rev.A)
2.0
INSTALLATION
2.1
GENERAL
The regulator does not require any additional safety device at inlet to assure protection against any overpressures with respect
to its permissible pressure
PS
when, for the reducing station positioned at inlet, the maximum incidental outlet pressure is:
Pd ≤ 1.1 PS
.
Before installing the regulator, it is necessary to make sure that:
the regulator can be inserted in the forecast space and is sufficiently accessible for performing the following
maintenance operations (see overall dimensions in table 2.1);
the inlet and outlet pipings are on the same level and are able to support the regulator weight (see table 2.2);
the inlet/outlet connections of the piping are parallel;
the inlet/outlet connections of the regulator are clean and the regulator itself has not been subject to any damages
during transport;
the inlet piping has been cleaned in order to remove any residual impurities such as welding scraps, sand, paint
residues, water, etc.
The normally forecast arrangement is the one shown in fig. 4; other possible installations are shown in fig. 5.
Figure 4
Figure 5
