Are the pipes used to transport brine and salt sludge pressure pipes?

This should be considered a pressure pipeline; ordinary steel pipes will suffice. If ordinary seamless pipes are used, their strength will not be sufficient, and saltwater can corrode the welds of such pipes

It should be counted; our factory’s design institute has also been classified as GC3. We specifically consulted the **General Administration for Quality Supervision, and they said that according to what the design institute has determined…

It is a pressure pipeline, Category GC3.

In a broad sense, so-called pressure pipes refer to all pipes that are subjected to internal or external pressure, regardless of the medium inside them. However, since the issuance of the Regulations on the Safety Management and Supervision of Pressure Pipelines in our country, “pressure pipeline” has become a specific term for pipelines subject to supervision. Article 2 of the \"Regulations on the Safety Management and Supervision of Pressure Pipelines\" defines pressure pipelines as \"special equipment used in production and daily life that may pose significant risks such as fires, explosions, or poisoning.\" The \"Regulations on the Safety Supervision of Special Equipment\" issued by the State Council on June 1, 2003, further defines pressure pipelines as \"tubular devices that use pressure to transport gases or liquids; these include pipes with a maximum working pressure of 0.1 MPa (gauge pressure) or more for gases, liquefied gases, steam, or liquid media that are flammable, explosive, toxic, or corrosive, and whose maximum working temperature is equal to or higher than their standard boiling point, provided that the nominal diameter of such pipes is greater than 25 mm.\" In other words, the so-called \"pressure pipelines\" referred to today not only mean those that are subjected to pressure inside or outside the pipes, but also those in which media such as \"gases, liquefied gases, and steam\" or \"liquids that may cause combustion, explosion, poisoning, or corrosion\" are transported. Pipelines for transporting brine and salt sludge are not only pressurized pipelines but also pipelines carrying \"corrosive liquids\"; they fall under the scope of the Regulations on the Safety Management and Supervision of Pressurized Pipelines. Therefore, they are considered pressurized pipelines and can be classified as GC3 category.

I agree with what was said above: the pipes used to transport brine and salt sludge are not only pressurized pipes, but also pressurized pipes carrying \"corrosive liquids\"; some of the welds in our salt sludge pipes have been corroded.

I have a question: I don’t think salt sludge falls under the category of liquids, so can pipes carrying it not be considered pressure pipes?

7# zhxn So what you’re saying is that the salt slurry doesn’t flow inside the pipes? Can’t liquids flow in pipes? So you’re saying the pump you use can still transport solids? ? ?

Salt slurry simply has a high solid content, but it is not entirely solid; its transport still relies on a liquid for propulsion.