Plastic tank construction: PP, PE and PVDF for chemical storage
When it comes to storing chemicals the choice of material is a critical factor. We offer a range of different plastic materials that can be used for tank construction, of which PP-H, PE-HD and PVDF are some of the most popular. But which material should I choose, and why?
PP-H, or polypropylene, is an excellent choice for storing acids and other chemicals that require high resistance to corrosion. It has a Shore hardness of 65 Shore D, which makes it a very durable and resistant material. For example, if you need to store hydrochloric acid or nitric acid, PP-H is a good choice.
Material selection based on chemical
PE-HD, or polyethylene, is another common material for tank construction. It is a good choice for general storage purposes, such as water or oil. PE-HD has a Shore hardness of 60 Shore D, which makes it a very reliable and durable material. However, if you need to store more aggressive chemicals, such as chlorine or bromine, you should choose a different material.
PVDF, or polyvinylidene fluoride, is a material that is very resistant to aggressive chemicals. It has a Shore hardness of 75 Shore D, which makes it a very durable and corrosion-resistant material. PVDF is a good choice for storing chemicals that require high resistance to corrosion, such as chlorine or bromine.
But how do you choose the material, and how do you calculate the wall thickness? That is a good question. When it comes to plastic tank construction, wall thickness is a critical factor in determining how much pressure the tank can withstand.
Wall thickness calculation
To calculate the wall thickness, you need to know which chemical you will be storing, and what pressure the tank will be exposed to. You also need to know which material you will be using. For example, if you will be storing water at room temperature, you can use a wall thickness of 10 mm for PP-H. However, if you will be storing a more aggressive chemical, such as chlorine, you should use a wall thickness of 15 mm or more.
Another important factor when it comes to plastic tank construction is welding. Welding is a process that allows you to join two or more parts of plastic to create a larger structure. When it comes to welding plastic, it is important to use the right equipment and technique to create a strong and corrosion-resistant joint.
Welding and inspection
We recommend that you use a combination of mechanical and thermal welding to create a strong and corrosion-resistant joint. It is also important to inspect the tank regularly to ensure that it is in good condition. The inspection should include checking the wall thickness, welds and other critical areas.
Compared to stainless steel, plastic tanks have several advantages. They are more durable, more corrosion-resistant and more flexible. They are also more economical, since they require less maintenance and repair. But why do so many companies choose stainless steel instead of plastic?
Maybe it is because they are not aware of the advantages of plastic tanks. Maybe it is because they do not have the right equipment or technique to build a plastic tank. But if you are interested in building a plastic tank, you should contact us. We have the right equipment and technique to help you build a strong and corrosion-resistant plastic tank.
So, if you need to store chemicals, why not try plastic? It is a good choice for many companies, and it can also be a good choice for you. Contact us today to learn more about our plastic materials and how they can be used for tank construction.
We have a range of different plastic materials that can be used for tank construction, and we can help you choose the right material for your needs. So, get in touch with us and learn more about the advantages of plastic tanks.
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