Re: [MW:3960] API 5L -PSL 1 & PSL 2

Please refer to API table in appendix, It is the level of inspection on PSL2 pipes that make it diferent from PSL1. PSL2 is mostly used in pipeline where visula inspection of pipen after construction/during hydrotest is of great concern. PSL 1 are used either for structure or can be used for plant piping where visual inspection during construction is not a concern. API doesnot make mendatory to have MTC for PSL1 pipe, since most of the API pipes are dual cartified you can ask for MTC from trader/manufacturer.

Regards

Chandra
On Mon, 04 Jan 2010 21:31:23 +0530 wrote
>Dear All,
 
Can Any one Explain me what is the difference between API 5L PSL-1 and PSL-2.What is the signefecance and where we need to use the specific PSL.
 
Regards,
 
Prakash K B



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Chandra Bhusan Tripathi
23 Beckett Circle
Perth, WA
Australia
M +61422812970
H +61862012197

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