Instruction Manual
D103691X012
June 2017
Station Instructions
1. STATION DESCRIPTION
1.1 Description
This pressure reduction and/or metering and/or shutoff
station is a group of several pressurized pieces of
equipment that are assembled to form an integrated
and functional whole.
It is designed so that the assembled elements are
adaptable and reliable under the intended service
conditions, become integrated correctly, and are
assembled properly.
The standard pressurized pieces of equipment are in
conformity with directive PED 2014/68/UE
(if Pu > 0.5 bar).
This station ensures one or more of the following
functions: ltering, pressure reduction, metering,
safety pressure, electrical insulation, shutoff, etc.
The uid used is gas (natural gas, compressed air,
nitrogen, etc.).
1.2 Station Design
The station design is either provided in the appendix,
or it can be consulted in the “Pressure reduction and
pressure reduction metering stations” catalogue for
applicable stations. It indicates clearly the types of
upstream and downstream connections and the limits
of the station.
1.3 List of Principal Elements
See station design.
1.4 Essential Admissible Limits
2. WARNINGS
WARNING
!
Upon receipt:
Verify that the equipment has not been
damaged during transport or handling.
Damage to the packaging must be
reported to the carrier.
Verify that the equipment does indeed
correspond to the order.
Before startup:
The user must ensure that the
delivery network of the gas supplier
has protection to prevent exceeding
of the admissible limits of the
station (upstream PMS and ambient
temperature range).
The user must verify that the uid
used is a clean gas (upstream ltration
necessary if not present in the station),
dry, and non corrosive.
The user must verify that all the
elements located upstream of the station
have been perfectly cleaned, dried, and
are free of dust, welding specks, etc.,
before startup.
Verify the proper functioning of the
elements constituting the station (see
corresponding notes).
Installation in an area that is subject to
vibrations may result in an undesirable
closing of the safety valve(s).
The essential admissible limits are indicated on the
design.
In general:
Upstream PMS = Pu
Downstream PMS = Pd (0.5 bar if Pd ≤ 0.4 bar).
The ambient temperature range is -20°/60°C.
Avoid subjecting the station to shock.
Provide for maintenance of the
station protection as needed for its
environment.
The station must normally not be
subjected to the action of ames.
Comply with the handling conditions.
Check contacting adjacent pipes to
prevent any axial cutting force, or a
bending torque.
Station Instructions
The user must not make any changes
to the constitution of the station, or
intervene on its structure (perforation,
welding, grinding, etc.).
This assembly is not designed to
withstand earthquakes.
This assembly is not designed to
withstand lightning. Provide adequate
protection.
It is absolutely necessary to connect the
equipotential connection of the station
to the ground.
If necessary, the user must provide
ducts for vents, and provide protection
against entering water.
3. STORAGE INSTRUCTIONS
The connection elements for the station are delivered
in closed form.
Storage position: see the indications on the packaging
(if none, store in the operating position).
Storage time without protection under delivery
conditions: maximum 15 calendar days.
6. STARTUP
CAUTION
Any intervention on the equipment must
be carried out by competent, certied,
and trained persons.
Reminder: In general, any manoeuvres
on valves, cocks, etc., must be carried
out slowly.
The network must receive gas before
setting and startup. The output of gas
must be carried out by personnel who
have adequate control equipment.
The safety device settings must be
veried before startup.
The startup is carried out componentby-component in the direction of the gas
ow: refer to the station design and to
notes for each component.
Before opening the sectioning device
upstream of the station, make sure that
the downstream network conditions are
completely safe for receiving gas.
4. HANDLING / LIFTING
Handle by means of slings with the lifting rings
included in the delivery, or with a forklift.
The weight of the station is reported on the delivery slip.
A station that is delivered vertically must not be
inclined by more than 15° during its handling.
5. INSTALLATION / MOUNTING
CAUTION
The connection of the station to the
inlet and outlet pipes on the site must
be carried out and veried by qualied
personnel, according to qualication
procedures pursuant to the applicable
regulations and/or the procedures.
During the upstream and downstream
connection process, verify that the
contact with pipes causes no stress on
the pipes.
7. MAINTENANCE / SPARE PARTS
WARNING
!
Any maintenance intervention must
be carried out without gas, after the
station has been decompressed, and by
certied and trained persons.
See the notes for the constitutive elements of the
station.
The station must be xed.
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