1.Leak Containment Sump
All U-FUEL Systems with front mounted pumps are constructed with a ventilated spill catch basin beneath the pump platform. The basin size varies with the size of the facility. All piping for standard facilities is located within the basin which provides secondary containment in accordance with NFPA 30A 4-2.1 and NFPA 30 3-4.2. A weatherproof hatch is constructed in the deck allowing easy access to piping and valves. The deck of the pump platform is removable for maintenance.

2.Pump
The U-FUEL System is fabricated to accept most UL approved fuel dispensers manufactured by major pumpsuppliers. If the customer has a fuel dispenser(suction type)that is still in good condition, it is possible to modify the U-FUEL System to receive the used dispenser.
The customer has the option of pumhasing a complete facility with a fuel dispenser installed by U-FUEL, Inc. or purchasing a facility without a dispenser and installing a separately purchased unit.
To insure watertight secondary containment under the pump, an exact drawing of the pump base is required to allow fabrication of a pump support section.

3.Stage I Vapor Recovery
Stage I vapor recovery piping and connections are standard on all bottom load U-FUEL Systems. In the unlikely event of a malfunction of an overfill valve, excess product will be pushed through the vapor recovery system back to the tanker truck. All fill connections are 3" cam lock fittings. Stage I vapor recovery is also available on top systems.

4.Spill Containment Box
All U-FUEL bottom load systems are constructed with a spill container surrounding the fill connections so that spills are caught in a spill container with a manual drain. For top systems, the spill container comes with a relief port to allow any spilled product to drain back into the tank．

5.Bottom Fill System
Most large U-FUEL facilities have our unique 3" bottom loading system. The extemal components are located in a Iocked, liquid tight containment box with hinged lid attached to the end of the tank. Fuel from the delivery truck enters the tank through a 3" cam lock hose fitting, a 20 mesh filter screen, a manual gate valve, a one-way check valve, and then through an Internal shut-off valve as required by NFPA 30A 2-4.9.4 and NFPA 30 2-3.4.1(e). Bottom loading is one of the safest ways to transfer large quantities of fuel.

6.Inspection Hatch
The lockable Inspection Hatch is weatherproof and constructed in the deck of U-FUEL Systems allowing easy access to external supply and electrical components located in the leak containment sump.

7. Supply Pipe
Typically 2" in diameter, the supply pipe carries the fuel from the fuel storage tanks to the pumps.

8.Overfill Shut-Off Valve
All U-FUEL facilities with boffom load systems have an internal float which closes an jnternal shut-off valve when the tank reaches 95% capacity. The shut-off valve is designed to begin closing when the tank is 90% full, giving the re-fueler SUfficient time to monitor volume, stop fuel transfer, and prevent
a major fuel spill. The internal shut-off valve also minimizes the possibility of filling lhe tank to the point where fuel expansion would cause a fuel spill as required by NFPA 30 2-3.4.1(e).

9.Tank Level Gauge
The Tank Level Gauge, or Clock Gauge provides a visual means to determine the level of the fuel in the tank, in accordance with NFPA 30 2-3.4.

10.Emerqency Vent
All U-FUEL Systems are equipped with an emergency vent for the product tank sized to conform with NFPA 30 2-3.6.4. Should the tank pressure exceed 8 oz. per square inch, the emergency vent will open and then close once excess pressure is released.

11. Manway
All U-FUEL Systems are equipped with a means of inspecting and servicing the inside of the tank. Bottom load tanks have a manway with optional internal ladder. Tanks with top fill systems may be entered by unbolting the manway/spill container.

12.Inspection Port
The 4" Inspection Port provides access to the interior of tank without having to take off the Manway.

13.Workinq Vent
In addition to the fire emergency vents all U-FUEL Systems are equipped with a pressure/vacuum working vent located on top of the tank extending to the proper height above ground level. This vent remains closed until there is a differential pressure between the tank and the atmosphere. The working vent, sized to conform with NFPA 30 2-3.5.2.2-3.5.6, and 2-3,7,2, allows Stage I and Stage II vapor recovery, and minimal release of vapors into the air.

14. High Level Alarm
All U-FUEL Pre-Fabricated Fire Resistant Tanks have a high level audible alarm. This alarm is installed at the base of the vent pipe 0n top of the aboveground tank. The alarm is activated by high liquid level producing a loud beeping sound. Alarm chirps when battery is low.

15．Tank Support System
The U-FUEL system is supposed through a tested and appmved Fire Resistant saddle and skid system that is uniquely constructed to withstand high temperatures while still maintaining its structural integrity.

16. Fire Valve
The fusible link emergency fire valve conforms with NFPA 30 2-3.8.1 and is located adjacent to the tank. The valve closes upon sensing heat from a fire. The valve can also be manually closed for maintenance of dispensing components while product remains in the tank.

17. Solenoid Valve
Located adjacent to the fire valve, the solenoid controls the flow of product to the pump in accordance with NFPA 30A 2-1.7 and 2-4.6.3. The Solenoid Valve is always in the closed position except when the fuel pump is on. This assures no product leakage should a catastrophic incident occur.

18. Flexible Pipe
Between the solenoid valve and the shear valve below the pump, fuel is carded through a listed stainless steel flexible pipe that complies with NFPA 30 3-4.1.

19. Shear Valve
The Shear Valve or Emergency Shut-off Valve, is installed on the fuel line directly under the pumps as required by NFPA 30&30A. In the event of impact and/or fire involving the dispenser, it completely shuts off the flow of pmduct to the pumps.

20. Fuel Tank
The Single Wall Fire Resistant Tank developed by U-FUEL is uniquely constructed to withstand high temperatures and maintain structural integrity. A unique fabrication process is used in conjunction with special steel. The tank suppors run the length of the tank which increases its strength.
The U-FUEL Single Wall Fire Resistant Tanks are typically sold without the vents, valves, and fittings normally found on other U-FUEL Tanks.

21. Lifting Lugs
Lifting lugs are welding to the tank assembly to allow balanced lifting and placing of the tank at the time of installation.

22.Roof Supports
Roof supports provide bracing for the roof assembly that encloses the tank.

23.Internal Iqnition Suppression System
U-FUEL has developed, tested, and listed a system call IS2, which saturates the inside of the tank with an inert gas and limits the potential for auto ignition should the tank be engulfed in a fire. The IS2 is available as an added level of protection on Fire Resistant Tanks.

24. Fire Suppression System
An Automatic dry chemical fire suppression system is available for all U-Fuel Systems. The automatic fire suppression system must be ordered and Installed along with a hood over the dispensing equipment.