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LPG TANK
The car has a pressurised tank for
storing LPG in a liquid state. It is
toroidal and is located in the spare
wheel compartment with suitable
protection.
LPG tank certification
The LPG tank is certified in accordance
with the regulations in force.
In Italy, the tank has a life of 10 years
starting from the car registration date. If
the vehicle has been registered in a
country other than Italy, the duration
and the testing/inspection procedures
of the LPG tank can vary depending on
the national provisions in force in that
country. In all case, when the time limit
for your country has expired, go to a
Fiat Dealer to have the tank replaced.
SOLENOID VALVES AND
SAFETY DEVICES
The system has a solenoid valve
located on the pressure reduction unit
and a solenoid valve fitted inside the
multivalve stack on the tank.
The main function of these solenoid
valves is to interrupt/allow the flow of
LPG to the supply circuit.
The solenoid valves are open when:
a request to run on LPG has been
made;
the optimum engine running
conditions are satisfied (engine coolant
temperature, minimum revs level) for
running on LPG;
there is enough LPG in the tank for
operation.
The multivalve stack fitted on the tank
includes:
a valve that automatically stops the
supply of LPG when the maximum
permitted filling level is reached (80% of
the total tank capacity);
a flow limiter which, if a piping is
broken, prevents the complete and
sudden escape of LPG;
a check valve preventing LPG
back-flow to the filler;
a safety solenoid valve on the LPG
supply line for enabling or preventing
the flow of gas towards the pressure
reducer;
a manual valve, positioned upstream
of the solenoid valve for bypassing the
LPG system for servicing operations;
a melting pad which, in the case of
overheating (temperature above
120°C), totally eliminates the danger of
excess pressure, releasing the LPG in
the tank to the outside as quickly as
possible in a controlled manner;
an analogue level gauge for LPG in
the tank.
PIPES
The piping for the LPG in a liquid state
(from the filler to the tank and from the
tank to the pressure regulator) is made
from copper coated in plastic.
The supply piping for the LPG in a
gaseous state (from the pressure
regulator to the LPG injectors) are made
from rubber.
REGULATION UNIT
The regulation unit (see the figure)
includes:
cut-out solenoid valve with gauze
filter;
pressure regulator.
The cut-out solenoid valve opens or
closes together with the solenoid valve
on the tank. It closes all LPG flow when
the engine is not running on gas. It also
acts as a safety device that prevents
73
PLG00006
45
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