Product Types: Double-layered oil tanks can be divided into three main categories based on their structural forms.

1. SF Double-Layer Oil Tank (Inner layer Q235 carbon steel structure, outer layer glass fiber layer)

2. SS Double-Walled Oil Tanks (Inner and Outer Layers: Q235 Carbon Steel Structure)

3. FF Double-Wall Oil Tanks (Inner Layer of Glass Fiber, Outer Layer of Glass Fiber)

Product Features: Safe and Environmentally Friendly

Double-walled fuel tanks: If the inner tank leaks, gas or detection fluid under pressure within the double wall will enter the normally pressurized inner tank; the pressure or level within the double wall will change, triggering an audible and visual alarm. If stored liquid leaks into the double wall, as the outer tank remains intact, the liquid will not leak out. Therefore, the stored liquid, soil, and groundwater are safe. If the outer tank leaks, gas or detection fluid under pressure within the double wall will enter the soil. Similarly, the pressure or level within the double wall will change, triggering an audible and visual alarm. At this point, since the inner tank is intact, the stored liquid is safe; only gas or detection fluid enters the soil, making soil and groundwater safe as well. Since the stored liquid in contact with the inner tank is a different medium from the soil and groundwater contacting the outer tank, the corrosion rates of the tank material differ, and the probability of simultaneous leakage is almost zero. Therefore, leakage of stored liquid outside the tank can be prevented, ensuring production safety and environmental protection.