9
FIAT PUNTO LPG
SOLENOID VALVES
AND SAFETY DEVICES
The system has a solenoid valve located
on the pressure reduction unit and a so-
lenoid valve fitted inside the multivalve as-
sembly 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 conditions are sat-
isfied (engine coolant temperature, mini-
mum revs level) for running on LPG;– there is enough LGP in the tank for op-
eration;
The multivalve assembly fitted on the tank
includes:
– a valve that automatically stops the sup-
ply of LPG when the maximum permitted
filling level is reached (80% of the total
tank capacity);
– a flow limiter which, if a pipe is broken,
prevents the complete and sudden escape
of LPG;
– a one-way valve, located on the gas re-
turn pipe in the tank, which prevents LPG
reflux;
– a safety solenoid valve on the LPG sup-
ply, which either gives the go ahead or
prevents the escape of gas to the pressure
reduction unit; – a manual tap, upstream of the solenoid
valve, that separates the tank from the LPG
system to allow maintenance operations;
– a fuse pad which, in the case of over-
heating (temperature above 120°C), to-
tally eliminates the danger of excess pres-
sure making the LPG in the tank flow out
as quickly as possible in a controlled man-
ner;
– an analogue gauge showing the level of
LPG in the tank.
604.39.942 Grande Punto GPL GB.qxp:603.39.944 Grande Punto GPL IT 15-12-2008 9:00 Pagina 9
