Products > Engine Fuel Systems >

Performance

Modern LPG and CNG power systems guarantee excellent engine performance and with LPG, there is practically no performance change. The latest generation of LPG injection systems results in a 2% power drop, whereas with CNG the drop is more pronounced at around 10/15%.

Safety

All Landi Renzo products are individually tested to ISO9001 since 1996 and to ISO TS 16949 from 2001. The latter is used by the motor vehicle industry and has extremely severe quality standards.

Safety is ensured through a filling valve, and through the installation of pressure relief and safety relays. Tanks can never be filled beyond 80% capacity.

Over 40 countries use gas as an alternative motor vehicle fuel. Landi Renzo has supplied over two million conversion kits, and in Italy alone there are one million vehicles running on gas.

The chemical-physical specifications of LPG have always been taken into consideration for the construction of tanks. Inspections, tests and trials are very severe, as are the standards for the construction of these components, including the pipes, valves and the other elements that make up the system. The pressure developed by LPG inside a tank normally ranges between 3 to 10 bar, but tanks are homologated for pressures of 30 bar.

During the homologation stage, the tanks are subjected to a hydraulic pressure test and must not burst before a pressure of 67.5 bar has been reached.

The new R67/01 standard came into force on January 1ST 2002, and now all LPG systems must be fitted with an additional safety device: a safety valve with heat-tripping fuse installed on the tank’s multi-valve, making modern systems even safer.

CNG tanks are able to guarantee the highest levels of safety. In fact, they are all subjected to stringent testing, both at the time of homologation and during their working life. The strength required to endure testing pressures of 300 bar and operating pressures of 220 bar means the cylinders are extremely resistant to impact.

The use of fully tested, extremely reliable components, the implementation of all methods during installation for the prevention of gas leaks, even in case of faulty operation, and the intrinsic properties of CGN (high ignition temperature, and narrow limits of flamability) are all factors which favour safety.