For 200-degree steam pipelines, how do you design the insulation scheme?

Painting is not recommended; just removing rust is sufficient. Painting usually results in the topcoat peeling off due to high temperatures, and high-quality paints are expensive； For insulation material, rock wool is used – that is, aluminum silicate insulation rolls. Glass surfaces are too itchy to touch, make maintenance difficult in the future, and they tend to fall apart easily. As for the thickness, it depends on the temperature level required for the insulation layer; for 50mm thick rolls, two layers are generally used for steam pipes

At 200 degrees, it must be carbon steel, and of course it needs to be painted. Then use composite silicate, apply the composite silicate slurry, and cover with aluminum foil.

10mm aerogel insulation foam will do; you can ask me for a proposal.

Working with aerogels must be great! There are also some in Nanjing.

Whether to apply paint or not can be decided based on one’s own circumstances; generally, a simple surface treatment is sufficient. Due to the high temperatures, ordinary paint tends to peel off, and using high-temperature paint increases the costs； Insulation is usually made of aluminum silicate (or composite silicates), which is then secured with wire mesh and covered with aluminum sheets (or glass cloth coated with acrylic waterproof paint). Composite silicates tend to become dusty over time, making them difficult to remove and repair. Aluminum sheets can corrode and change color when exposed to corrosive gas environments, losing much of their brightness after one or two years; in such environments, glass cloth is a more economical and suitable choice. In short, when choosing a solution, it is necessary to take into comprehensive consideration factors such as one’s company’s production environment, investment requirements, and maintenance needs.

An outer primer can be considered, followed by a silicate board, waterproofing protection with exterior tarps, and finally 3 layers of glass fiber cloth, with topcoat applied. It’s not expensive and quite practical: lol

The outer wall of the steam pipeline can be coated with a temperature-resistant zinc silicate primer, which provides certain resistance to heat and corrosion. An insulating layer made of various silicates is used on the outside (pre-fabricated pipe shells can be used). If there are aesthetic requirements as well, glass fiber cloth is wrapped around the pipeline before applying the desired colored paint. For some pipelines in industrial facilities that require maintenance, galvanized iron sheet can be wrapped around the insulation layer; however, this increases the cost significantly.

The increasing number shows that this product is truly good.

The common practice is to use an inorganic zinc-rich primer for corrosion protection; rock wool is rarely used these days, and 80 mm thick glass fiber wool is sufficient.