Process interfaces for instruments and pipelines
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For example, when a gauge is installed on a pipeline with a process diameter of φ273X6.0, how is it determined that the process interface for TE-101 should be DN40 PN1.6MPA? (Why DN40?)
This post was last edited by liuyuqian on 2018-10-22 at 15:18. DN40: The instrument interface is what it is, and it has nothing to do with the dimensions of the equipment or pipes; it is essentially determined by design specifications (as a common standard).
Determine the openings on the pipeline based on the instrument interface?
1. The pipeline single-line diagrams related to the piping specialty will specify the detailed specifications and dimensions of the TE-101 source component, its pressure rating, as well as its approximate installation location. 2. The instrument data sheets and instrument installation drawings will also include the corresponding design details
I’m not very familiar with this “process interface”. Are there any pictures? If there is one, give a more intuitive one
Personally, I’m not sure if this is correct: On the P&ID, it is required to leave spaces on the pipes for instruments, so you should first check the information related to instrument selection, or consult the instrumentation specialists. Based on the flanges, threads, or other styles that match, just leave a gap so that it can be connected.
The piping specialty, in accordance with regulatory requirements, designs the locations of openings during the design process, as well as the protrusions that connect to the pipes. The construction unit is responsible for making the openings and welding the protrusions
This is chosen based on characteristics such as the process medium, pressure, and temperature. DN40 PN1.6MPA is a standard size for temperature instruments; of course, there are many other options, and the choice depends on the actual conditions
Newbies in the chemical industry, come take a look and learn*