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STANDARDS and SAFETY
FEATURES
The
Landi Autogas system utilised by LPG Autogas conforms to all the
necessary requirements of the European Standards Authority and the
United Nations Agreement of approval for motor vehicle equipment
of 20 March 1958. The equipment further complies with ECE R67 rev
01
Class A European standards and Code of Practice 087 - Part 6 as set down by the South
African Bureau of Standards.
The
technicians installing the Autogas system are fully qualified with
the LPGas Safety Association of South Africa and all installations
are carried out in accordance with Code of Practice 087 - Part 6
as aforesaid, furthermore the technicians are approved in terms of
the more stringent requirements of the European Suppliers who have been pioneers of Autogas systems for more than
60 years.
For
further peace of mind the Autogas system is fitted with numerous
safety features, aside from the safety of the gas itself :-
LPG
(Liquefied Petroleum Gas)
The
gas stored in the tank is in a liquid form, whilst in this liquid
form the gas is not flammable. LPG only becomes flammable in a
gaseous form which occurs from the vaporiser to the mixer, thereby
making LPG a particularly safe fuel.
The
Storage Tank
All
storage tanks used by LPGautoGAS are tested and approved at
pressures of at least 45 BAR. The operating pressures of the tank
are between 6 to 8 BAR.
LPG
is an expansive gas and as such is susceptible to climatic
conditions, the storage tank is therefore fitted with a shut off
valve which only permits the tank to be filled to 80% of its
capacity, thereby allowing for any expansion which may occur.
The
Multi-Valve
The
multi-valve is fitted onto the storage tank and controls the flow
of gas into the tank when filling and the flow from the tank to
the solenoid/vaporiser.
The
multi-valve is fitted with 3 safety features :-
Manual
Shut Off Valve
The
gas flow from the solenoid valve/vaporiser can be manually closed
off.
Pressure
Release Valve
In the event that the gas in the tank expands to a higher level
than permitted, the pressure release valve automatically opens and
allows the gas to vent outside the vehicle.
Pressure
Sensor Valve
In the event that the flow of gas from the tank to the
solenoid/vaporiser exceeds a pre-set level (the allowable flow
rate), i.e. a broken or cut fuel pipe, then the pressure sensor
valve picks up this increased flow and knowing that there is a
fault in the system automatically cuts off the gas supply at the
tank/multi-valve.
Lock
Off Solenoid Valve
If
the gas flow from the solenoid to the vaporiser exceeds the
allowable flow rate, the solenoid lock off valve automatically
cuts off the supply of gas to the vaporiser.
Vaporiser
The
vaporiser itself is also fitted with a separate back up lock off
solenoid valve.
LPG
Changeover Switch
The
control switch to change the vehicle from petrol to LPG and vice
versa is fitted with an electronic pulse. When the ignition is
turned on this pulse allows gas to be released for a period of 1
to 4 seconds before cranking the engine, if the engine is cranked
within this time period the flow of gas is not effected, however,
if for any reason the ignition is switched on and the engine is
not cranked within the required period the flow of gas is
automatically cut off at the solenoid. This is reset by turning
the ignition off and re-starting.
Given
the inherent safety qualities of LPG itself, the seven
added safety features of the LPG Autogas system, together with the
quality of product and professional installation, a user of the
LPG Autogas product can be assured of a reliable, safe,
environmentally friendly and cost effective solution to motoring.
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