Question: What do the letters in the “Piping List” provided by Tianchen Design Institute represent?
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Question: What do the letters in the “Piping List” provided by Tianchen Design Institute represent? For example, what does the pipe grade letter S1E in the “red box” mean? What does ST-H1 in the insulation rating table mean?
The letters in this pipeline overview table have the following meanings: – Pipeline grade letter: – S1: General process system – S2: Important process system – S3: Particularly important process system – E: Pipelines made of refractory materials. – Insulation grade letter: – ST: Rock wool – GF: Glass fiber fabric – A1: Aerogel – H: Silicate cotton – P: Polyurethane foam – C: Calcium silicate board. The pipeline grade letter S1E in the red box indicates a pipeline that belongs to the general process system and is made of refractory materials. In the insulation grade table, ST-H1 denotes an insulation material of rock wool type, specifically silicate wool, used for pipes in high-temperature conditions (>600°C). .
One more question: Which standard or specification does the above come from?
One word from you is worth ten years of study
The pipeline grade generally refers to the grade of the pipeline material, and it should be determined in accordance with the regulations specified in HG/T20519. The three components that make up the pipeline material grade are as follows: the first letter indicates the pressure level, the second digit is a sequence number, and the third component represents the type of material. Understand it this way: S is 16.0 Ma (the designer probably made a mistake in marking it). Unit 3, A refers to cast iron, G is a non-metal, and E is stainless steel. If it does not conform to the regulations, the design institute should provide an explanation in the legend
This design institute has a homepage image (the default title for the institute), which details the design specifications, information on the grade and material of pipelines, as well as details regarding the materials used for insulation
Each institute is different; generally, check the homepage image or the pipeline grade table
Pipeline grades are represented differently by various design institutes
It’s not just that different design institutes use different representations. Different projects from the same design institute use different representations. Design institutes generally specify the pipe class in accordance with the process package received or the basic design requirements. For specific details, refer to the diagram on the PID homepage or the project pipeline material grade table.
Be more specific. At the beginning of each project, a pipeline design specification is prepared first; different industries have various regulations and guidelines