Because of the costs&performance issues, most of the customers prefer to use mostly submersible systems in the todays market.
A submersible fuel pump is a kind of pumping device which has a hermetically sealed motor close-coupled to the pump body. Whole assembly is submerged in the fuel to be pumped. The main advantage of this type of pump is that it prevents pump cavitation, a problem associated with a high elevation difference between pump and the fuel surface. Submersible fuel pumps push fuel from underground tank to fuel dispensers that are connected to this line.
Liquefied petroleum gas (also called LPG, GPL, LP Gas, or autogas) is a mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles, and increasingly replacing chlorofluorocarbons as an aerosol propellant and a refrigerant to reduce damage to the ozone layer, inferring that it is flammable.
Varieties of LPG bought and sold include mixes that are primarily propane, mixes that are primarily butane, and the more common, mixes including both propane (60%) and butane (40%), depending on the season—in winter more propane, in summer more butane. Propylene and butylenes are usually also present in small concentration. A powerful odorant, ethanethiol, is added so that leaks can be detected easily. The international standard is EN 589. In the United States, thiophene or amyl mercaptan are also approved odorants.
LPG is a low carbon emitting hydrocarbon fuel available in rural areas, emitting 19 percent less CO2 per kWh than oil, 30 percent less than coal and more than 50 percent less than coal-generated electricity distributed via the grid. Being a mix of propane and butane, LPG emits more carbon per joule than propane and LPG emits less carbon per joule than butane.
LPG gas is in liquid state over 6 bars. So our systems are designed to work only over 6 bars. Under normal conditions working pressure is between 9-12 Bars.
Meter lifetime is depends on the cleaning of filters regularly and the quality of the LPG. If there are particles or water or acidic components inside LPG, life time will be shorter for mechanical meters.
On the other hand, Mass flow Meters are made of stainless steel and most strong metering system against those kind of effects.
After 30.000lt. you should change the first filter. In every 100.000lt. de second filter should be changed. It is also important to make calibration every time you change filters.
ATC is the technology correcting the measured volume automatically in function of the measured temperature. In conformity with the European Metrological Standards the volume is converted into litres to the standard reference temperature of 15°C.
In this way your dispenser will take into account the volume changes as a result of the temperature fluctuations and you can sell the total volume you have purchased. With ATC the ‘lost litres’ belong to the past and you will have an incontestable control of your stock.