The FloMeg Non-Pressure Shutoff System is built specifically to address problems with the fast fill fueling process.
1) The FloMeg system uses internal pressure sensing to determine shutoff levels, not the tank’s pressure.
A pilot line runs from the valve to the float. As the tank is filling a small stream of fuel enters an opening in the piston through the pilot line and drops into the tank. When the fuel level has reached the specified capacity, the float valve closes and the fuel stream in the pilot line is stopped; this creates up to 1.5 PSI backpressure in the tank which is sufficient pressure combined with the spring force in the receiver valve to close the piston. Once the piston closes the nozzle senses the back pressure and closes. Almost zero pressure is created in the tank...
2) Tank pressure, after filling is complete, is controlled with a breather mounted on top of the float, allowing thank pressure to quickly return to atmospheric pressure.
3) Tank stress and rupture is eliminated because of the low tank pressure either during or after filling thus prolonging the natural lifetime of the fuel tank.
4) When the fuel level is at the pre-selected level the float will remain closed making it impossible for the operator to override the system.
Operators will not be able to “top off” the tank.
Typical FloMeg Setup. The shutoff mechanism and activation is completely internal to the FloMeg System. Thus protecting the tank from excessive pressure and overfilling.
5) The Fuel Receiver is installed into the FloMeg receiver valve. When the FloMeg receiver piston is closed, it will not allow fluid in or out. If the fuel receiver sticks, there is minimal risk of exposure to the operator from fuel spills because the piston in the receiver valve will remain closed.
The problem with other filling systems...Fast filling systems have been plagued with design flaws:
1) They are designed around
feedback received from increases
in tank pressure.
2) The PSI required to shut off the nozzle is much too close to the total design pressure of the tanks.
3) Too much pressure means Over Stressed Tanks and even Tank Rupture leading to expensive equipment replacement and down time.
4) Operators can manually override the nozzle shutoff thus overfilling the tank, resulting in loss of fuel on the ground.
5) Malfunctioning receivers allow fuel spills which endanger operators and create safety and environmental violations.
Downloads related to this section:
