Maximum Spin Hole Diameter for Dish End

[sevak hiren]

Dear Experts,

 

As per ASME section VIII Div I , UW-34, max. allowable patch diameter for a spin hole of dishend is 60 mm.

 

If, the dish end spin hole patch diameter is found to be of more than 60 mm then the dish end should be rejected, please correct me if I am wrong.

 

 

Thanks in advance.................

[Swapnil Vanjara]

first of all tell me haw ur dia bcm more than 60


On 7/13/12, Swapnil Vanjara <swapnil...@gmail.com> wrote:
> first of all tell me haw ur dia bcm more than 60

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[sevak hiren]

At the time of forming the spin hole dia was less than 60 mm around 30 mm, but while forming the crack was observed at spin hole, so the hole was extended to 70 mm & the patch was welded. RT is also done for patch weld.

 

But as per Section VIII Div I, is it acceptable ?

[Swapnil Vanjara]

not acceptable

[Nitin Shetty]

Sir
On what basis is it not acceptable

Regards

Nitin

Sent from Nitin Shetty iPhone