Do pipes with a nominal diameter of 25 or less fall under the category of industrial pipes?
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GB/T20801.1－2006 Code for pressure pipelines – Industrial pipelines: 1.3.1 This part is applicable to the design and construction of \"pressure pipelines\" as defined in the Regulations on the Safety Supervision of Special Equipment. The “pressure pipeline” as defined in this regulation refers to a pipeline with a maximum operating pressure of 0.1 MPa or higher for gaseous, liquefied gas, or steam media, or for liquid media that are flammable, explosive, toxic, corrosive, and have a maximum operating temperature of 0.1 MPa or higher at their standard boiling point, and with a nominal diameter of 25 mm or greater. 1.3.2 This section also applies to the design and construction of pressure pipelines for non-flammable, non-toxic, and non-corrosive liquids with a nominal diameter of 25 mm or less, and a maximum operating pressure of less than 0.1 MPa or in a vacuum environment. The Regulations on the Safety Supervision of Special Equipment (2009) stipulate that: (III) Pressure pipelines refer to tubular devices that use a certain pressure to transport gases or liquids. They include pipelines in which the maximum operating pressure is 0.1 MPa (gauge pressure) or higher for gases, liquefied gases, steam, or liquid media that are flammable, explosive, toxic, corrosive, and have a maximum operating temperature equal to or higher than their standard boiling point; such pipelines must also have a nominal diameter of more than 25 mm. The question is whether pipes with a diameter of less than or equal to DN25 are considered industrial pipes. How exactly should 1.3.2 in GB/T20801.1－2006 be interpreted?
Pipes smaller than DN25 are also considered industrial pipes, but they are governed by GB20801.1-2006
It is simply not within the scope of regulation by the Regulations on the Safety Supervision of Special Equipment
It belongs to industrial pipelines; for specific details, refer to the inspection regulations for in-use industrial pipelines.
Assign it to the instrument piping; it also falls under the category of industrial pipelines
Does that water line belong to industrial piping? Such as heating wires
Pipes with a nominal diameter of less than or equal to DN25 are considered industrial pipes.
Industrial pipelines refer to the process pipelines, utility pipelines, and other auxiliary pipelines owned by enterprises and institutions and used for transporting process media. They should be independent of pipe diameter and depend only on their ownership; however, the pressure pipelines that are subject to supervision are subject to constraints such as pipe diameter, pressure, and the type of medium.
According to the grading system specified in the \"Implementation Rules for the Qualification Recognition of Pressure Pipeline Installation Units\": Industrial pipelines fall under the GC category, with the following grade classifications: 1. Industrial pipelines that meet one of the following conditions are classified as GC1 grade: (1) Pipelines that transport media with a toxicity level classified as extremely hazardous according to GB5044 \"Classification of Hazards from Occupational Exposure to Toxic Substances\"； (2) Pipelines that transport flammable gases of Class A or B, or flammable liquids of Class A, as specified in GB50160 \"Code for Fire Protection Design of Petrochemical Enterprises\" and GBJ16 \"Code for Fire Protection Design of Buildings\", and have a design pressure of p ≥ 4.0 MPa ； (3) Pipelines for transporting flammable fluid media or toxic fluid media, with a design pressure of p ≥ 4.0 MPa and a design temperature of ≥ 400°C ； (4) Pipelines that transport fluid media and have a design pressure of p ≥ 10.0 MPa. 2. Industrial pipelines that meet one of the following conditions are classified as GC2 grade: (1) Those that transport flammable gases of Class A or B, or flammable liquids of Class A, as specified in GB50160 \"Code for Fire Protection Design of Petrochemical Enterprises\" and GBJ16 \"Code for Fire Protection Design of Buildings\", with a design pressure of p
It must be an industrial pipeline, just not falling within the category of pressure pipelines.
Industrial pipelines are not determined by their diameter, and they should not be confused with the regulations governing pressure pipelines; even industrial pipelines are not necessarily pressure pipelines. If it’s a pressure pipeline, then it must be an industrial pipeline.
It is undoubtedly an industrial pipeline; those with a DN of less than 10 do not fall under the category of pressure pipelines!
According to Article 39(1) of the \"Regulations on the Safety Management and Supervision of Pressure Pipelines\": \"Industrial pipelines refer to process pipelines, utility pipelines, and other auxiliary pipelines owned by enterprises and institutions and used for transporting process media.\" 1. For pipelines with a DN ≤ 25 mm as mentioned by LZ, as long as they fall within the scope of the aforementioned \"Pipeline Regulations,\" they should be classified as \"industrial pipelines.\" 2. Based on personal interpretation of 1.3.2 in GB/T20801.1-2006, it can be assumed that this standard can also be applied to the design and construction of industrial pipelines that are not covered by the definition of pressure pipelines given in the regulations. Because GB/T is itself a recommended standard, not one that is mandatorily enforced. For discussion!
What I want to ask is: Is the circulating water line in the device a pressure pipeline? Are there also sewers, vent lines, etc.?
They belong to pressure pipelines; nowadays, all fire hoses are considered pressure pipelines!
Those equal to or less than DN25 do not require inspection by a boiler inspection agency. But it can still be an industrial pipeline.