What Is a Square Tank?
A Square Tank is a tank in the shape of a square box. They are generally made of polyethylene (PE), which is impact-resistant and environmentally friendly and can be used for a long time without rusting or corroding.
Various capacities and depths are available, including types with casters, types with drain plugs, deep types that can be transported with a forklift, types with hose stoppers and lids, and types that can be stacked. Larger square tanks have a slanted bottom in the center, and some have a slanted bottom structure that facilitates smooth drainage.
Some tanks are made of affordable polypropylene, while others are made of expensive FRP polyethylene and PTFE (polytetrafluoroethylene).
Uses for Square Tanks
Versatile Square Tanks are used in all areas of food processing, fisheries, fishing, textiles, industry, machinery, equipment, pharmaceuticals, logistics, civil engineering, construction, cement plants, steel mills, thermal power plants, and more.
Specific examples include:
- Compounding of construction materials, material storage
- Industrial container and packaging operations
- Food washing and preparation
- Storage of parts, tools, etc., and waste sorting containers in factories
- Storage containers for powders and other materials
- Fisheries processing from landing, sorting, and storage of marine products to live fish auction tanks at fish markets, etc.
- Shipping operations
- Transport, organization, and storage in factories
- Sewage receptacles
Other wide-ranging uses.
Principle of Square Tank
Polyethylene is the main material used for Square Tanks. However, polypropylene, FRP polyethylene, and PTFE (polytetrafluoroethylene) are also used.
The characteristics of each material are as follows:
- Polyethylene: This is the most widely produced synthetic resin material and is commonly used for multipurpose Square Tanks.
It has excellent corrosion resistance, is impact resistant, and is easily recyclable. Stains can be easily removed by washing with water. - Polypropylene (PP): This material is used to make Square Tanks called “Tubs” because it is easy to process and mass-produce at low cost.
It is often used for small square tanks (50L~150L) because it is easy to process, inexpensive, and mass-producible. It has poor weather resistance and is vulnerable to ultraviolet rays such as direct sunlight. - FRP Polyethylene: Weather-resistant, durable, and heat-resistant up to 80℃. It can also be used for chemicals with alkali components.
It is resistant to impact, so it is easy to work in steel mills and thermal power plants. In cement factories, it can be completely recycled by burning it and mixing it with cement after use.
This material is mainly used for large and expensive Square Tanks with a capacity of about 1000~3000 liters. - PTFE (Polytetrafluoroethylene): Taking advantage of the excellent chemical resistance and purity of fluoropolymers, PTFE is used for the storage and mixing of high-purity chemical solutions used in semiconductor manufacturing equipment. It has high heat resistance and can be used at -240°C to 260°C.