5 replies to this topic

[Sridhar P]

Can you please provide me the complete material class for the P&ID Line designation.

Say P-10033-A1f-100-IH.

Here what A1f represents?

And can anyone provide the complete list of this specification.

Thanks and Regards,
P.Sridhar.

[pleckner]

There is no standard for piping material class designation for P&IDs. Piping material class designation is totally and 100% company-specific. I work for an E&C company, and I have three different client P&IDs sitting in front of me with three very different piping material class designation for the same material pipe.

[Sridhar P]

Thank you sir for your valuable feed back.

Thanks and Regards,
P.Sridhar

[PipingandPipeline]

P&ID Legend Sheet should tell you information, you also can check process or pipe design criteria from your project

[chemks2012]

Sridhar,

Agree with pleckner [above] that there is no as such rule for line tag numbers BUT a line tag number should give you loads of information/data.

I would prefer a line tag number as shown below. This just an example - you can use your own short forms and terminologies but the line tag number should give loads of information. I really don't see any point when people use line tag number as 80SS or 80NB.

WTP-D80-001-CAU-CS-ET-25MW

where,

WTP - designation given to the plant where the line is located - here I have used WTP [waste treatment plant]. You can use your own short forms
D80 - pipe nominal bore size - here D80 is 3" diameter
001 - unique line number i.e. each line should have unique identifying or sequential number - here i have used 001
CAU - material content - here CAU is caustic. You can use your own short forms
CS- material of construction of pipe - here CS is carbon steel
ET - type of heat tracing if applicable - here ET is electrical tracing. If you do not have heat tracing, you can leave it blank or use 'NO'
25MW- thickness and type of insulation if applicable - here 25MW means 25mm thick mineral wool insulation. If you do not have insulation, you can leave it blank or use 'NO'

Therefore, normally we issue a 2-3 page document [decoder] to go with P&IDs wherein you can find what short form/identifier is used for what. In your case, you should ask your colleague/client if they have got such document.

Hope, this helps!
KS

Edited by chemks2012, 26 May 2012 - 01:03 PM.

[Shivshankar]

Sridhar,

http://piping-design...ine_Designation

For example ,

Companies have their own standards Equipment numbering System for Piping line numbering system you can have code for each Alphabets or Numbers.

Regards
Shivshankar