VISUAL INSPECTION IN ACCORDANCE WITH ASME B31.3

[sovog]

Can someone point me in the direction of a clause in ASME B31.3 where the visual acceptance limits change for high pressure lines?
We currently have a project where the acceptance refers to ASME B31.3 Table 341.3.2 & ASME V Article 9.
The WT is 10 and 11mm so the internal protrusion as I read it is below or equal to 3mm.
Our client is telling me that as this is a high pressure line and the acceptance is 1.5mm.
Having studied various chapters of ASME B31.3 I can not find this clause.
Is there one?

 

[ijzer]

See under Scope and Definitions page of B31.3 and par. K300.
high pressure means pressure over the 2500 lbs standard rating and only if specified as such by the owner.

 

[ndeguy]

sovog

High Pressure lines are covered in Chapter IX of ASME B31.3. Table K341.3.2. is indeed more restrictive for IP with the figure of 1,5mm being the max allowable IP for up to 13mm wall thickness as opposed to the 3mm allowed under Table 341.3.2.

Nigel Armstrong
Karachaganak Petroleum
Kazakhstan