How to check and prevent softening of PE plastic storage tanks?

With the advancement of technology, the inlet, outlet, level gauge, flange and other components on PE plastic storage tank bodies are now formed as a whole without welding, without the need for separate inlet and outlet ports. So, when storing acidic and alkaline substances, acid and alkali resistant gaskets should be equipped; When storing organic matter, especially organic solvents, it is necessary to prepare rubber gaskets that are not easily soluble.  

The small softening point of the plastic used in PE plastic storage tanks is 108 ℃, and the large fragmentation point is -70 ℃, so it can generally be used to hold liquids with temperatures ranging from -40 ℃ to 60 ℃. If the liquid content is heavy or the temperature is above 60 ℃, a steel lined plastic anti-corrosion storage tank should be used to prevent softening and deformation of the tank.

If PE plastic storage tanks are used for chemical reactions or dilution, corresponding tests should be conducted in advance to determine the high temperature of the reaction or dilution. If PE plastic storage tanks are used for chemical reactions or dilution, corresponding tests should be conducted in advance to determine the high temperature of the reaction or dilution.

For example, it is necessary to first check whether there are serious scratches on the appearance of the storage tank. Due to the large size of PE plastic storage tanks, they are usually bare. The supplier can be requested to remind the shipping company to avoid scratches as much as possible during transportation; Secondly, pay attention to whether the color of the storage tank is uniform. If it is not uniform, it indicates that there is a problem with the material of the storage tank or the formula. When ordering a storage tank, try to choose white as much as possible.

In addition, the smoothness of the surface of the PE plastic storage tank should be checked to see if there are no burrs. If the surface has no gloss and is uneven with small bumps everywhere, then there must be some problems with the PE raw material. It is important to check for any air bubbles, material shortages, or other conditions around.