Piping alignement tolerance as per ASME B31.1

650 views
Skip to first unread message

Raneesh.PK

unread,
Dec 27, 2016, 5:31:23 AM12/27/16
to material...@googlegroups.com

Dear Experts,

Construction code - ASME B.31.1 (Fuel gas system)

Service - Fuel gas system

I wanted to know how much tolerance can accept  while doing piping alignment inspection like straightness checking , elevation checking dimensional checking etc

Nothing was mentioned in contract documents and project specification.

Please provide the reference.



*RANEESH.PK 

*QA/QC-WELDING*




George Dilintas

unread,
Dec 28, 2016, 10:02:50 PM12/28/16
to Meghanadh K
see fig 127. 3 in B31-1

--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAGRQ%2BmV1fhOaGx1CuBcEUxVLs3WkGNoj_OgBuO9fsmMdu8V6dA%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.



--
Dr. Georgios Dilintas,
Dipl. Ing. In Aeronautic and Space Engineering
Ph.D in Mechanics of Solids - Computational Mechanics
A.I.S, A.N.I, IRCA Lead Auditor
Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

raneesh pk

unread,
Jan 2, 2017, 5:51:03 AM1/2/17
to Materials & Welding
Thank you for your reply.
Referring  fig 127. 3 in B31-1, give tolerance of weld joint prior to fit-up.I am asking tolerance of pipe straightness/ verticality and elevation while installing pre-assembled pipe spools


On Thursday, December 29, 2016 at 7:02:50 AM UTC+4, George Dilintas wrote:
see fig 127. 3 in B31-1
2016-12-27 10:52 GMT+02:00 Raneesh.PK <pkra...@gmail.com>:

Dear Experts,

Construction code - ASME B.31.1 (Fuel gas system)

Service - Fuel gas system

I wanted to know how much tolerance can accept  while doing piping alignment inspection like straightness checking , elevation checking dimensional checking etc

Nothing was mentioned in contract documents and project specification.

Please provide the reference.



*RANEESH.PK 

*QA/QC-WELDING*




--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
To post to this group, send email to material...@googlegroups.com.

Prasad Rode

unread,
Jan 3, 2017, 10:16:32 PM1/3/17
to Materials & Welding
For straightness and verticality can be place , with in limit of 3 mm.

Elevation will be as per drawing.

May be implement as good engg. practice.

Don't know exactly , where in code.

Regards
Prasad

dilintas

unread,
Jan 3, 2017, 10:16:35 PM1/3/17
to material...@googlegroups.com
ISO 13920



Sent from my Samsung Galaxy smartphone.
Reply all
Reply to author
Forward
0 new messages