PID diagram
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CWS1106-200-B16RJ1-T-GC(4) “What does ‘B16RJ1-T-GC(4)’ mean? A detailed explanation is needed.” Thank you! DR1112-80-B10MF2-GC2(4) “B10MF2-GC2(4)” – what does this mean? A detailed explanation is needed. Thank you! It would be great to have detailed information on this topic.....
This CWS indicates circulating water; 1106 is the pipeline number, 200 is the diameter. B16 probably refers to 16 kilograms (just a guess). RJ means the sealing surface is of the ring-type connection type. GC(4) denotes the safety level of the pipeline, while DR refers to the discharge pipe
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Explanation of B16RJ1-T-GC(4): (1) B16RJ1 refers to the pipe grade; each project has its own specifications regarding pipe grades, which are usually established by the materials department. These specifications vary from one project to another, so it is advisable to ask the materials engineer in charge of the project for detailed information on its meaning. (2) T should refer to the insulation method for pipelines, meaning tracing or heat tracing. (3) GC4 is a pipeline classification from the \"Code for Pressure Piping – Industrial Pipelines\", which divides industrial pipelines into 4 grades: GC1, GC2, GC3, GC4. This classification may not be entirely accurate; it can be discussed. It is recommended to check the PID homepage, where there are explanations for each item
I tend to think that B16RJ1 is a pipe material code prepared by the design institute that created this drawing, and it is necessary to ask the design institute for this information. As for RJ and MF, although it seems to correspond to the connection type, is it really necessary to indicate it this way?
Check the PID homepage for detailed instructions. CWS1106-200-B16RJ1-T-GC(4) “B16RJ1-T-GC(4)” DR1112-80-B10MF2-GC2(4) “B10MF2-GC2(4)” ! The numbering is confusing; when comparing the upper and lower values, both RJ and MF represent flange connection types. However, the numbers 16\10 at the beginning likely denote the pressure rating, with 10 corresponding to 1.0 MPa. Using MF is acceptable in this case, but using RJ for a pressure of 1.6 MPa would be somewhat wasteful. Moreover, the pressure in circulating water systems is quite low, so RJ isn’t necessary.