There is a type of storage tank lined with plastic material. It can prevent corrosion that PE tanks cannot resist and withstand temperatures that PE tanks cannot handle. This is the steel-lined PTFE storage tank . PTFE, also known as polytetrafluoroethylene, is hailed as the "king of plastics." We know that PE tanks are already common anti-corrosion containers in the chemical industry, but the melting point of polyethylene (PE) is only 85–110°C. Therefore, under safe usage conditions, its maximum operating temperature should not exceed 60°C. Similarly, steel-lined PE tanks must also adhere to this limitation. When the operating temperature exceeds what PE can handle, we need a superior material to meet the requirements. Polytetrafluoroethylene has a melting point above 300°C and can safely operate at temperatures up to 250°C. Thus, under high-temperature conditions where PE tanks are unsuitable, steel-lined PTFE storage tanks, PTFE-lined storage tanks, and PTFE-lined receiving tanks can effectively solve this problem.

So, how should customers determine which lining material they need when selecting a storage tank? This depends on the medium to be stored and the long-term operating temperature required. By providing this basic information to manufacturers of steel-lined PTFE storage tanks, their professional designers can develop a fluoroplastic-lined equipment that meets your requirements. Here, we would like to remind everyone that when choosing a manufacturer for steel-lined PTFE storage tanks, it is important to select one with extensive production and processing experience. Wuxi Hongfu Anti-Corrosion Equipment Co., Ltd. has ample experience in the research, development, and production of fluoroplastic-lined storage tanks. Their fluoroplastic-lined products are highly favored by customers. If needed, you are welcome to visit our company for further discussions.

Next, let me briefly introduce our company's production process for steel-lined PTFE storage tanks:
1. Based on CAD drawings, form the tank body of the steel-lined F4 storage tank. After completion, smooth out any internal burrs and sharp edges.
2. Perform sandblasting to remove rust from the interior of the tank. Use iron grit for sandblasting, ensuring it meets the Sa2.5 grade standard, with a surface roughness of 3–5μm.
3. Sodium treat the purchased PTFE sheets to enhance their adhesion and hydrophilicity, ensuring they bond tightly with the PTFE-lined storage tank body.
4. Apply Shimin Dahard adhesive evenly to both the PTFE sheets and the interior of the tank. Apply at least four coats, ensuring uniform coverage without any missed areas.
5. Once the adhesive has dried, cut the PTFE sheets according to the shape of the storage tank to optimize material usage and minimize waste.
6. Heat the cut sheets and use specialized tools to press them onto the tank walls, ensuring a tight bond.
7. Bevel the overlapping edges of the PTFE sheets into a V-groove to facilitate the next step of welding.
8. Clean the dust from the grooves with a damp cloth, then use hot air welding equipment. First, weld with PFA round strips, then flatten the welded strips with the PTFE sheets. Finally, weld with PFA wide strips.
9. Use a 15kV spark tester to inspect the entire equipment. If no breakdown occurs, the product is qualified.
10. After smoothing the exterior of the sheet-lined PTFE storage tank, apply two coats of paint for a more aesthetically pleasing finish. The paint color can be customized.

Steel-lined PTFE storage tanks are supplied by Wuxi Hongfu Anti-Corrosion Equipment Manufacturer. The company was established on April 22, 2022, and is located in the beautiful city of Wuxi, Jiangsu—Huishan. As a manufacturer of steel-lined PTFE storage tanks, Hongfu always stands from the customer's perspective, thinking what customers think, addressing their urgent needs, and solving their difficulties. We develop and produce sheet-lined PTFE mixing tanks and PTFE-lined tanks for our customers. Adhering to the "customer-centric" service philosophy, we strive to meet customer demands and measure our work by customer satisfaction. Customer satisfaction is our recognition, and we are committed to ensuring more customers benefit from our products and acknowledge our efforts.