Surface treatment for flanges: enhancing corrosion resistance and aesthetic appeal

Flanges are an essential component in the construction of pipelines, as they are used to connect pipes, valves, and other equipment. The surface treatment of flanges is an important aspect of their manufacturing process, as it directly affects their performance, durability, and appearance. In this article, we will introduce the surface treatment methods commonly used in the production of flanges.

Galvanized Threaded Flanges

Galvanizing: Galvanizing is a surface treatment process that involves coating the flange with a layer of zinc to prevent rust and corrosion. This process is commonly used in outdoor environments where the flanges are exposed to moisture and other corrosive substances.

Painting: Painting is a surface treatment method that involves coating the flange with a layer of paint. This process not only enhances the appearance of the flange, but also provides an additional layer of protection against corrosion and rust.

slip on flanges DN1000 RF-AWWA C207 Hub A105

Sandblasting: Sandblasting is a surface treatment process that involves using a high-pressure stream of sand or other abrasive material to remove rust, paint, and other surface contaminants from the flange. This process leaves a clean, smooth surface that is ready for further treatment or use.

Passivation: Passivation is a surface treatment process that involves treating the surface of the flange with a chemical solution to remove contaminants and create a protective oxide layer. This process is commonly used in the production of stainless steel flanges, as it helps to prevent rust and corrosion.

At Haihao Group, we use a combination of these surface treatment methods to produce high-quality flanges that meet our customers’ needs. Our experienced technicians carefully select the appropriate treatment method based on the specific requirements of each flange, ensuring that our products meet the highest standards of quality and durability.

In addition, we also offer customized surface treatment services to meet the unique needs of our customers. Whether you need galvanizing, painting, sandblasting, passivation, or a combination of these treatments, we have the expertise and equipment to provide the perfect solution for your project.

The surface treatment of flanges is a critical aspect of their production process, as it directly affects their performance and durability. At Haihao Group, we are committed to providing our customers with high-quality flanges that are not only functional, but also aesthetically pleasing. Contact us today to learn more about our surface treatment services and how we can help you with your next project.