TECHNICAL MANUAL MT103
COMMISSIONING
Commissioning must be carried out by adequately trained personnel.
During the commissioning activities, the personnel not strictly necessary must be ordered away and the no-go
area must be properly signalled (signs, barriers, etc.).
Check that the settings of the apparatus are those requested; if necessary, reset them to the required values in
accordance with the procedures indicated in the manual.
When commissioning, the risks associated with any discharges into the atmosphere of flammable or noxious
gases must be assessed.
In installations in natural gas distribution networks, the risk of the formation of explosive mixtures (gas/air) inside
the piping must be considered.
CONFORMITY TO DIRECTIVE 97/23/EC (PED)
Pressure regulator
Reflux 819/FO
is classified as fail open regulator according to the standard EN 334 therefore
it is categorized as
pressure accessory
according to directive 97/23/EC (PED).
The incorporated safety device monitor PM/819 (as well as the in-line monitor
REFLUX 819
) being classified as
fail close regulators according to the standard EN 334 is categorized as
safety accessory
according PED, therefore
it can be used both as pressure accessory and safety accessory to PED. The regulator
REFLUX 819/FO
when
incorporating slam shut valve SB/82 or HB/97 with pressure switches for overpressure is categorized as safety
accessory according to PED, therefore it can be used both as pressure accessory and
safety accessory
to PED.
Conformity with Directive 97/23/EC and CE marking of pressure regulator and relevant accessory require
installation in the system with minimum requirements according to: EN 12286.
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