Pipe markings on drawings
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What does 2K1A mean in pipeline 250-DSW(S)-30205-2K1A?
This is the pipeline material grade, which is specified by each design institute on its own. To check the design specifications, the requirements for pipeline material grades
Pipeline material grade, including pressure, material type, and other information
Pipeline material grade, namely the material type and pressure rating
One can only rely on the first page of the design drawings; even with that, it’s just speculation, and it doesn’t conform to the specifications in HG/T20519. If it is a pipeline number. It can be roughly estimated that K1A is 0.6 MPa for cast iron series pipes
It should be the material grade code; it’s necessary to check the design specifications as well
I have already asked the design institute about the pressure rating of the pipelines; 2k’1’a refers to stainless steel, specifically 0cr18Ni9
There is a table of pipeline material grades in the design documents provided by the design institute; check it out
250 is the pipe diameter; DSW should represent the material, while 30205 is the pipe code. 2k1A should theoretically be the material, but if it is indeed a material, it should be placed before the pipe number. The first page of P&ID drawings usually contains instructions; go and check them