Re: [MW:31461] Re: Welder qualified 2 7/8 OD, whether he can weld 2” NPS

Thanks to the team for valuable suggestions and comments. ASME interpretations regarding the query. Kindly refer the below link and extract of the interpretations.

https://cstools.asme.org/Interpretation/InterpretationDetail.cfm?TrackingNumber=7114

 

 

Thanks and Best Regards,

 

G.Murali krishnan
Mob : +966-501487307
Saudi Arabia

On Wed, Sep 16, 2020 at 10:45 AM 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Dear Mr. Nazeer & All,

Weldolet comes with a Reinforcement which increases Thickness and OD and can it be considered like a Pipe.

Any reference of Code Interpretation with respect to Weldolet for welder qualification.

Thanks & Regards

J.Gerald Jayakumar

On Wednesday, 16 September, 2020, 01:38:55 pm GMT+7, Nazeer <naz.mhd@gmail.com> wrote:

Dear Mr.Murali,

Table QW-452.3 specifies the Outside Diameter of pipe, fitting, etc in Inch & mm units. Its not specifying the pipe size in NPS or DN.

Hence OD 73 mm & over qualified welder is qualified to weld 82mm OD .

For better understanding, refer the Table QW-452.3 in mm unit for 82mm OD

Thanks & Regards

Nazeer

On Wednesday, September 9, 2020 at 6:57:24 AM UTC+3 MK wrote:

Greetings,

I have a weldolet 2" NPS X OD 82 mm, I want to use the welder qualified for 2 7/8 (73 mm) & over.

Query initiated by client that as per ASME SEC IX Table QW 452.3 foot note (b) states that 2 7/8 in. (72mm) O.D. is the equivalent of NPS 2 1/2 (DN 65). In this case the welder client says welder is not qualified for 2 inch NPS.

since the welder qualification essential variable is OD inline with ASME SEC IX, kindly advice.

If any reference kindly share the same.

Thanks 

Murali

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Thanks and Best Regards,

 

G.Murali krishnan
Mob : +966-501487307
Saudi Arabia

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