The letter representing the pipeline number has a meaning
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This post was last edited by Litaotao1314 on 2010-12-17 at 16:35. What do the various numbers and letters in 80-P1289-4H1(H,60) represent? H1 seems to represent the material grade; what exactly is that material grade? It would be better if there are relevant standards! Thank you so much! ! !
In PID diagrams, the method of representing pipe numbers may vary. The first image should have an explanation.
You should check the homepage image of your project’s PID; there will be detailed instructions there. Because the regulations vary for different projects; based on the pipe number provided by the original poster, we can only make guesses. As follows: 80: Pipe diameter; P: Code for the material used; 1289: Sequence number of the material; 4: Code for the pressure rating; H1: Code for the pipe material; H: Code for insulation; 60: Insulation thickness. With this, we have the basic information regarding the pipe
You need to check the rules for pipeline numbering in the table
There should be an explanation on the home page image; floor 3 should be correct!
80: Pipe diameter, P; Process medium: 1289; Pipe sequence number: 4H1; Pipe grade: H; Insulation: 60; Insulation thickness
The regulations vary among different design institutes; one should check the instructions on the PID homepage of the engineering design, or the guidelines for preparing the pipe material grade table, or the pipe design specifications
H1 should represent 304 stainless steel; this is the standard convention. The numbering starts with H1, followed by H2/H3, etc., with the numbers generally corresponding to the grades of stainless steel. Different design institutes and engineering companies may use different systems.
Who can give some specific parameters? I also want to learn*
80: Pipe diameter; K m! {! j7 Y- s9 T. ~ P Process medium. 1289: Pipe sequence number; D6 A5 F7 H# O: X6 u) I: j 4H1. Pipe grade: H. Insulation thickness: 7 X7 y) l2 C. d: ?; } 60. There is also usually information regarding the pipe material, such as SS for stainless steel, CS for carbon steel, GF for steel lined with tetrafluoroethylene, GB for steel lined with glass, Zn for galvanized pipes, etc. (This is how we classify them in our company; different design firms may use different classifications.)
I’ve learned that the proper approach seems to be to check the instructions on the PID homepage related to engineering design, or to look at the guidelines for preparing the table of pipe material grades