1. If the user fills the liquid, it is calculated according to the specific gravity (density) of the product, but there must be enough space for 10% of the expansion and cracking of the product to prevent the steel drum from deforming and cracking during handling or falling. 2. If the user holds solids, he can request the steel drum manufacturer to provide steel drums of the same volume for trial installation, and then calculate the required volume of steel drums for the loading weight. However, 5%-10% of the space should also be reserved for the wrapping of the plastic inner bag to prevent the steel drum from falling and deforming during transportation, cracking, and flying lid. 3. If the user fills products with low boiling points (generally below 60), it is necessary to fully consider that such products have vapor pressure at a certain temperature, and the liquid vapor pressure increases with the increase of temperature. In addition, it is necessary to consider the product filling temperature and the maximum temperature that the steel drum may encounter during storage and transportation after filling. Generally, 55 should be considered. In some areas, a temperature difference of 60 as high as 60 should be considered, which will cause product expansion and lead to steel drums. Generate internal pressure, and the sum of these two pressures cannot be greater than the allowable internal pressure pressure in the steel drum. Otherwise, the steel drum will burst and be severely deformed. Steel drums are allowed to bear pressure. Please refer to the export commodity inspection certificate or consult the manufacturer for details. 4. If the user fills the product with a high temperature, cool the product to room temperature as much as possible before filling. If the product cannot be cooled and needs to be filled, the filled steel drum cannot be tightened immediately, otherwise the temperature difference will cause The negative pressure generated by the steel drum causes the steel drum to deflate or deflate as soon as it touches the steel drum.
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