By visually inspecting the quality of portable fuel tanks, you can quickly judge their reliability from four aspects: material, structure, process details, and safety signs:
1. Material and surface treatment:
Metal fuel tanks should be free of rust and scratches, the thickness of the steel plate should be uniform, and the galvanized or spray-coated coating should not peel off; the material of the plastic fuel tank should be uniform, with no bubbles or cracks on the surface, and the sound should be crisp when knocked, without a dull feeling. If the material is rough and the color is uneven, there may be quality problems.
2. Structure and welding process:
The handles and handles should be firmly welded or riveted, and there should be no looseness when shaking vigorously; the base should be flat, the metal base should have an anti-slip design, and the plastic base should not be deformed or worn. The welding of the metal fuel tank should be smooth, without false welding, pores, or weld tumors; the hot-melt joints of the plastic fuel tank should be tight, without delamination or overflow.
3. Details of key components:
The threads of the fuel inlet and valve are complete, and there is no jamming when tightening; the rubber sealing ring should not be aged or deformed, and fit tightly with the interface. The vent hole/breathing valve is unobstructed, without blockage or damage; the metal vent cap is not rusted, and the plastic parts are not brittle. The liquid level window is clear and scratch-free, the scale line is accurate, and the error with the actual capacity is less than 5%.
4. Labeling and certification information:
The box must be clearly marked with capacity, material, applicable fuel type and manufacturer information; check whether it has international certifications such as UL and CE, or compliance labels that comply with local regulations (such as US CARB certification and EU TPED standards). If the depth of the dent exceeds 3mm, cracks or other obvious damage is found, or leakage is found in the sealing test, it indicates that there are quality risks and it should be used with caution.
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